Manuel d'utilisation / d'entretien du produit TDS 700C du fabricant Tektronix
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User Manual TDS 500C, TDS 600B & TDS 700C Digitizing Oscilloscopes 070-9869-00 This document applies for firmware version 1.0 and above..
Copyright T ektronix, Inc. All rights reserved. Licensed software products are owned by T ektronix or its suppliers and are protected by United States copyright laws and international treaty provisions.
W ARRANTY T ektronix warrants that this product will be free from defects in materials and workmanship for a period of three (3) years from the date of shipment.
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TDS 500C, TDS 600B, & TDS 700C User Manual i T able of Contents General Safety Summary xi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preface xiii . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
T able of Contents ii TDS 500C, TDS 600B, & TDS 700C User Manual T riggering on Pulses 3–89 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Communications T riggering 3–103 . . . . . . . . . . . . .
T able of Contents TDS 500C, TDS 600B, & TDS 700C User Manual iii List of Figures Figure 1–1: Rear Panel Contr ols Used in Start Up 1–7 . . . . . . . . . . . . . . . Figure 1–2: ON/STBY Button 1–8 . . . . . . . . . . . . . . . . . . . . . .
T able of Contents iv TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–14: Equivalent-T ime Sampling 3–27 . . . . . . . . . . . . . . . . . . . . . . . Figure 3–15: How the Acquisition Modes W ork 3–31 . . . . . . . . . . . . . . . . . Figure 3–16: Acquisition Menu and Readout 3–33 .
T able of Contents TDS 500C, TDS 600B, & TDS 700C User Manual v Figure 3–51: Delayed T riggerable 3–107 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3–52: How the Delayed T riggers W ork 3–109 . . . . . . . . . . . . . .
T able of Contents vi TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–87: Initial Help Scr een 3–182 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3–88: Comparing a W aveform to a Limit T emplate 3–184 . . . . . . .
T able of Contents TDS 500C, TDS 600B, & TDS 700C User Manual vii List of T ables T able 1–1: Key Features and differ ences of models 1–2 . . . . . . . . . . . . . . T able 1–2: Fuse and fuse cap part numbers 1–7 . . . . . . . . . . . . . .
T able of Contents viii TDS 500C, TDS 600B, & TDS 700C User Manual.
TDS 500C, TDS 600B, & TDS 700C User Manual ix General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. T o avoid potential hazards, use this product only as specified.
General Safety Summary x TDS 500C, TDS 600B, & TDS 700C User Manual Do Not Operate in Wet/Damp Conditions. Do Not Operate in an Explosive Atmosphere. Keep Product Surfaces Clean and Dry . Provide Proper V entilation. Refer to the manual’ s installation instructions for details on installing the product so it has proper ventilation.
TDS 500C, TDS 600B, & TDS 700C User Manual xi Preface This is the User Manual for the TDS 500C, TDS 600B, & TDS 700C Digitizing Oscilloscopes. The chapter Getting Started briefly describes the TDS Oscilloscope, prepares you to install it, and tells you how to put it into service.
Preface xii TDS 500C, TDS 600B, & TDS 700C User Manual Default Model This manual documents the TDS 500C, TDS 600B, & TDS 700C Digitizing Oscilloscopes. T ake special note of the following conventions: Some TDS models have two auxiliary channels called AUX 1 and AUX 2, instead of CH 3 and CH 4.
Preface TDS 500C, TDS 600B, & TDS 700C User Manual xiii Names also appear in the same case (initial capitals or all uppercase) in the manual as is used on the oscilloscope front panel and menus. Front panel names are all upper case letters, for example, VERTICAL MENU and CH 1 .
Preface xiv TDS 500C, TDS 600B, & TDS 700C User Manual.
Getting Started.
TDS 500C, TDS 600B, & TDS 700C User Manual 1–1 Product Description The T ektronix TDS Oscilloscope is a superb tool for acquiring, displaying, and measuring waveforms.
Product Description 1–2 TDS 500C, TDS 600B, & TDS 700C User Manual Differences by Model T able 1–1 lists some key TDS features and relates them to the different TDS models that this manual covers. T able 1–1: Key Features and differences of models Feature 520C 540C 620B 644B 680B 684B 724C 754C 784C No.
Product Description TDS 500C, TDS 600B, & TDS 700C User Manual 1–3 Product Specification The product specification is found in the technical reference TDS 500C, TDS 600B, & TDS 700C T echnical Refer ence (Performance V erification and Specifications) that is shipped as a standard accessory with the TDS Oscillo- scope.
Product Description 1–4 TDS 500C, TDS 600B, & TDS 700C User Manual.
TDS 500C, TDS 600B, & TDS 700C User Manual 1–5 Start Up Before you use the TDS Oscilloscope, ensure that it is properly installed and powered on. Preparation T o ensure maximum accuracy for your most critical measurements, you should know about signal path compensation and the proper use of the probe you choose to use with your oscilloscope.
Start Up 1–6 TDS 500C, TDS 600B, & TDS 700C User Manual CAUTION. Using the P6243 or P6245 Active Pr obe to measur e signals gr eater than ± 40 volts may damage the pr obe. Be sure to choose the proper input coupling and impedance for the probe or other cabling you use to couple signals to your oscilloscope.
Start Up TDS 500C, TDS 600B, & TDS 700C User Manual 1–7 Power Connector Principal Power Switch Fuse Figure 1–1: Rear Panel Controls Used in Start Up 5. Connect the proper power cord from the rear-panel power connector (see Figure 1–1) to the power system.
Start Up 1–8 TDS 500C, TDS 600B, & TDS 700C User Manual ON/STBY Button Figure 1–2: ON/STBY Button The ON/STBY button controls power to most of the instrument circuits. Power continues to go to certain parts even when this switch is set to STBY .
Operating Basics.
TDS 500C, TDS 600B, & TDS 700C User Manual 2–1 Overview This chapter describes the basic concepts of operating the TDS Oscilloscope. Understanding the basic concepts of your oscilloscope will help you use it much more effectively .
Overview 2–2 TDS 500C, TDS 600B, & TDS 700C User Manual.
TDS 500C, TDS 600B, & TDS 700C User Manual 2–3 Operating Interface Maps This section contains illustrations, or maps, of the display , the front and rear panels, and the menu system of the TDS Oscilloscope. These maps will help you understand and operate the oscilloscope.
Operating Interface Maps 2–4 TDS 500C, TDS 600B, & TDS 700C User Manual Front Panel Map — Right Side Hardcopy , page 3–164 File System, page 3–160 Autoset, page 3–8 Help, page 3–181 St.
Operating Interface Maps TDS 500C, TDS 600B, & TDS 700C User Manual 2–5 Rear Panel Map Rear Panel Connectors Security Bracket GPIB Connector , page 3–174 Centronics Connector Principal Power S.
Operating Interface Maps 2–6 TDS 500C, TDS 600B, & TDS 700C User Manual Display Map The value entered with the general purpose knob or keypad. Channel level and waveform source. The main menu with choices of major actions The side menu with choices of specific actions.
Operating Interface Maps TDS 500C, TDS 600B, & TDS 700C User Manual 2–7 T o Operate a Menu 1 Press front-panel menu button. (Press SHIFT first if button label is blue.) 2 Press one of these buttons to select from main menu. 3 Press one of these buttons to select from side menu (if displayed).
Operating Interface Maps 2–8 TDS 500C, TDS 600B, & TDS 700C User Manual T o Operate a Pop-Up Menu Press to display pop-up menus. Press it again to make selection. Alternatively , press SHIFT first to make selection in the opposite direction. A pop-up selection changes the other main menu titles.
TDS 500C, TDS 600B, & TDS 700C User Manual 2–9 T utorial This section quickly makes you acquainted with some of the fundamental operations required to use the TDS Oscilloscope to take measurements. Start this tutorial by doing Setting Up for the Examples on this page.
T utorial 2–10 TDS 500C, TDS 600B, & TDS 700C User Manual Signal Gnd Figure 2–1: Connecting a Probe for the Examples (P6245 shown) Do the following steps to reset the oscilloscope to a known factory default state before doing the examples.
T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–1 1 SETUP Button Figure 2–2: SETUP Button Location The oscilloscope displays main menus along the bottom of the screen. Figure 2–3 shows the Setup main menu. Recall Factory Setup Menu Item and Button OK Confirm Factory Init Menu Item and Button Figure 2–3: The Setup Menu 2.
T utorial 2–12 TDS 500C, TDS 600B, & TDS 700C User Manual NOTE . This manual uses the following notation to r epr esent the sequence of selections you made in steps 1, 2 and 3: Press save/recall SETUP ➞ Recall Factory Setup (main) ➞ OK Confirm Factory Init (side).
T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–13 The trigger r eadout shows that the oscilloscope is triggering on channel 1 (Ch1) on a rising edge, and that the trigger level is about 200–300 mV . The time base r eadout shows that the main time base is set to a horizontal scale of 500 s/div .
T utorial 2–14 TDS 500C, TDS 600B, & TDS 700C User Manual The display shows the probe compensation signal. It is a 1 kHz square wave of approximately 0.5 V amplitude. Figure 2–6 shows the main VER TICAL and HORIZONT AL sections of the front panel.
T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–15 When you first connect a signal to a channel and display it, the signal displayed may not be scaled and triggered correctly . Use the autoset function and you should quickly get a meaningful display .
T utorial 2–16 TDS 500C, TDS 600B, & TDS 700C User Manual AUTOSET Button Figure 2–8: AUTOSET Button Location Figure 2–9 shows the display after pressing AUTOSET . If necessary , you can adjust the waveform now by using the knobs discussed earlier in this example.
T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–17 NOTE . If you ar e using a passive pr obe, such as the P6139A pr obe, the corners on your displayed signal may look r ounded or pointed. (See Figur e 2–10.) If so, then you may need to compensate your pr obe.
T utorial 2–18 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 2–1 1: The Channel Buttons and Lights Each of the channel (CH) buttons has a light behind its label. Right now , the CH 1 light is on. That light indicates that the vertical controls are set to adjust channel 1.
T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–19 There are two channel indicators at the left edge of the graticule. Right now , they overlap. The light above the CH 2 button is now on, and the CH 1 light is off. Because the knobs control only one channel at a time, the vertical controls are now set to adjust channel 2.
T utorial 2–20 TDS 500C, TDS 600B, & TDS 700C User Manual Ch2 Reference Indicator Side Menu Title Figure 2–12: The V ertical Main Menu and Coupling Side Menu Pressing a channel (CH) button sets the vertical controls to that channel. It also adds the channel to the display if that waveform is not already displayed.
T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–21 Side Menu Title Figure 2–13: The Menus After Changing Channels Pressing the W A VEFORM OFF button removes the waveform for the currently selected channel. If the waveform you want to remove is not already selected, select that channel using the channel (CH) button.
T utorial 2–22 TDS 500C, TDS 600B, & TDS 700C User Manual Example 3: T aking Automated Measurements The TDS Oscilloscope can measure many waveform parameters automatically and read out the results on screen. Do the following tasks to discover how to set up the oscilloscope to measure waveforms automatically .
T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–23 Observe that the frequency measurement appears within the right side of the graticule area. The measurement readout includes the notation Ch1 , meaning that the measurement is taken on the channel 1 waveform.
T utorial 2–24 TDS 500C, TDS 600B, & TDS 700C User Manual Use the Measure menu to remove waveforms you no longer want. T o remove a measurement individually (you can also remove them, as a group), do the following step: 1.
T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–25 T o examine the current values, press Level Setup (main) ➞ High Ref (side). The General Purpose Knob. The general purpose knob, the large knob, is now set to adjust the high reference level (Figure 2–16.
T utorial 2–26 TDS 500C, TDS 600B, & TDS 700C User Manual General Purpose Knob Setting and Readout Highlighted Menu Item with Boxed Readout V alue General Purpose Knob Icon Figure 2–16: General Purpose Knob Indicators The Numeric Keypad.
T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–27 1. Press Low Ref (side). 2. On the numeric keypad, press the 2 , the 0 , and the ENTER ( ) buttons, which sets the low measurement reference to 20%. Observe that the rise-time value has changed.
T utorial 2–28 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 2–17: Snapshot of Channel 1 Example 4: Saving Setups The TDS Oscilloscope can save its controls settings and recall them later to quickly re-establish a setup. It provides ten storage locations to store up to ten setups.
T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–29 First, you need to create an instrument setup you want to save. Perform the following steps to create and save a setup that is complex enough that you might prefer not to go through all these steps each time you want that display: 1.
T utorial 2–30 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 2–18: Save/Recall Setup Menu 8. Press one of the T o Setup side menu buttons to store the current instrument settings into that setup location. Remember which setup location you selected for use later .
T utorial TDS 500C, TDS 600B, & TDS 700C User Manual 2–31 T o recall the setup, press SA VE/RECALL SETUP ➞ Recall Saved Set- up (main) ➞ Recall Setup (side) for the setup location you used in the last exercise. The positive width measurement is now removed from the display because you selected it after you saved the setup.
T utorial 2–32 TDS 500C, TDS 600B, & TDS 700C User Manual.
Reference.
TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 Overview This chapter describes in detail how to perform the operating tasks you must do to measure, test, process, or save and document your waveforms.
Overview 3–2 TDS 500C, TDS 600B, & TDS 700C User Manual Coupling W aveforms to the Oscilloscope 3–5 . . . . . . . . . . . . . . . . . . . . . . . . . Setting up Automatically: Autoset and Reset 3–8 . . . . . . . . . . . . . . . . . . . . . .
Overview TDS 500C, TDS 600B, & TDS 700C User Manual 3–3 Displaying Status 3–179 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Displaying the Banner 3–181 . . . . . . . . . . . . . . . . . . . . . . .
Overview 3–4 TDS 500C, TDS 600B, & TDS 700C User Manual.
TDS 500C, TDS 600B, & TDS 700C User Manual 3–5 Acquiring and Displaying W aveforms T o use the TDS Oscilloscope to measure or monitor waveforms, you need to know how to acquire, select, and display those waveforms properly .
Acquiring and Displaying W aveforms 3–6 TDS 500C, TDS 600B, & TDS 700C User Manual The remaining TDS 500C, TDS 600B, and TDS 700C oscilloscopes ship with general-purpose probes — either the P6139A or the P6243, depending on the oscilloscope model.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–7 5. TDS 500C and 700C models only: Press SHIFT ACQUIRE MENU ➞ Mode (main) ➞ Hi Res (side). 6. TDS 600B models only: Press SHIFT ACQUIRE MENU ➞ Mode (main) ➞ A verage (side).
Acquiring and Displaying W aveforms 3–8 TDS 500C, TDS 600B, & TDS 700C User Manual The oscilloscope switches to 50 W and disables AC coupling (and switches coupling to DC if AC is selected) if you connect an active probe, such as the P6245 probe.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–9 Do the following steps to automatically set up the oscilloscope: 1. Press the channel selection button (such as CH 1 ) corresponding to your input channel to make it active.
Acquiring and Displaying W aveforms 3–10 TDS 500C, TDS 600B, & TDS 700C User Manual T able 3–1: Autoset defaults (Cont.) Control Changed by autoset to Display Style V ectors Display Intensity .
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 1 Do the following steps to reset the oscilloscope to its factory default settings: 1. Press the Save/Recall SETUP button to display the Setup menu (see Fig - ure 3–3 ).
Acquiring and Displaying W aveforms 3–12 TDS 500C, TDS 600B, & TDS 700C User Manual Channel Readout Channel Reference Indicator Figure 3–3: The Channel Readout T o select a channel, use the channel selection buttons on the right of the display .
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–13 Do the following steps to first display and then remove waveforms from the display: 1. Press CH 1, CH 2, CH 3 , or CH 4 to turn on as many of these channels as desired.
Acquiring and Displaying W aveforms 3–14 TDS 500C, TDS 600B, & TDS 700C User Manual T o read about selecting reference waveforms, see Saving and Recalling W aveforms on page 3–154. T o read about selecting (and creating) math waveforms, see W aveform Math on page 3–188.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–15 Original Position Positioned Vertically Positioned Horizontally Original Scale Scaled Horizontally Record View.
Acquiring and Displaying W aveforms 3–16 TDS 500C, TDS 600B, & TDS 700C User Manual 3. T o make positioning faster , press the SHIFT button. When the light above the SHIFT button is on and the display says Coarse Knobs in the upper right corner , the POSITION knob positions waveforms more quickly .
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–17 T o select the coupling, bandwidth, and offset for the selected waveform, use the V ertical menu (Figure 3–6). This menu also lets you numerically change the position or scale instead of using the vertical knobs.
Acquiring and Displaying W aveforms 3–18 TDS 500C, TDS 600B, & TDS 700C User Manual Fine Scale. T o make fine adjustments to the vertical scale, press VER TICAL MENU ➞ Fine Scale (main) and use the general purpose knob or the keypad. Position.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–19 Check the T ime Base r eadout at the lower right of the display to see the time/division settings and the time base (main or delayed) being referred to. (See Figure 3–7.
Acquiring and Displaying W aveforms 3–20 TDS 500C, TDS 600B, & TDS 700C User Manual 2. If you want the POSITION knob to move faster , press the SHIFT button. When the light above the shift button is on and the display says Coarse Knobs in the upper right corner , the POSITION knob positions waveforms more quickly .
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–21 T rigger Position. The trigger point marks time zero in a waveform or acquisition (in Extended Acquisition mode) record. All record points before the trigger event make up the pretrigger portion of the record.
Acquiring and Displaying W aveforms 3–22 TDS 500C, TDS 600B, & TDS 700C User Manual 2. T o fit an acquired waveform (or with Extended Acquisition On, an acquisi- tion) to the visible screen, regardless of record length, press HORIZONT AL MENU ➞ Record Length (main).
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–23 NOTE . T o function pr operly , Extended acquisition mode for ces some oscilloscope modes and settings to new values. Also, measur ements, gating, math, and cursors ar e restricted to the curr ent waveform r ecor d.
Acquiring and Displaying W aveforms 3–24 TDS 500C, TDS 600B, & TDS 700C User Manual Wfm Len displays the length of the waveform record. The settings for Record Length in the Horizontal menu and for Extended Acquisition mode (on or off) determine the length.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–25 T o perform tutorials that teach selecting, scaling, and positioning of waveforms, see Example 1: Displaying a W aveform on page 2–13 and Example 2: Displaying Multiple W aveforms on page 2–17 .
Acquiring and Displaying W aveforms 3–26 TDS 500C, TDS 600B, & TDS 700C User Manual The oscilloscope uses the samples it takes (see Figure 3–13) to create a waveform record containing a user-specified number of data or record points.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–27 A TDS 500C or TDS 700C model oscilloscope (the TDS 600B models use only real time sampling) uses equivalent ti.
Acquiring and Displaying W aveforms 3–28 TDS 500C, TDS 600B, & TDS 700C User Manual Y our oscilloscope can interpolate between the samples it acquires. Like for equivalent time sampling, it does so only when it cannot obtain all the r eal samples it needs to fill up its waveform record.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–29 A TDS 500C or TDS 700C Oscilloscope can interleave its channels to attain higher digitizing rates without equivalent time sampling or interpolating.
Acquiring and Displaying W aveforms 3–30 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–15 illustrates the different modes and lists the benefits of each. It will help you select the appropriate mode for your application. Refer to it as your read the following descriptions of each mode.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–31 W aveform Drawn on CRT Samples Acquired in Four Acquisition Intervals Displayed Record Points Acquisition Mode Use for fastest acquisition rate. This is the default mode.
Acquiring and Displaying W aveforms 3–32 TDS 500C, TDS 600B, & TDS 700C User Manual Hi Res Mode. TDS 500C and 700C models only: Hi Res mode averages all samples taken during an acquisition interval to create a record point. The average results in a higher-resolution, lower -bandwidth waveform.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–33 T o determine the acquisition sampling rate, the acquisition state (running or stopped), and the acquisition mode, check the Acquisition readout at the top of the display .
Acquiring and Displaying W aveforms 3–34 TDS 500C, TDS 600B, & TDS 700C User Manual NOTE . TDS 500C and 700C models only: Selecting Hi Res mode in the Acquir e menu automatically r educes long r ecor d-length settings to pr event overflow of acquisition memory .
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–35 Check T able 3–4 below to determine the time base setting(s) at which the switch from real-time sampling (R T) to equivalent time sampling or interpolation (ETI) occurs for your model.
Acquiring and Displaying W aveforms 3–36 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–17: Acquire Menu — Stop After Press RUN/STOP button only (side) to use the RUN/ST OP button to start or stop acquiring. Pressing the RUN/STOP button once will stop the acquisitions.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–37 NOTE . T o quickly select Single Acquisition Sequence without displaying the Acquir e and Stop After menus, pr ess SHIFT FORCE TRIG. Now the RUN/STOP button operates as just described.
Acquiring and Displaying W aveforms 3–38 TDS 500C, TDS 600B, & TDS 700C User Manual Methods to Check and Eliminate. T o quickly check for aliasing, slowly increase the horizontal scale (time per division setting).
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–39 T o bring up the Display menu: Press DISPLA Y ➞ Settings (main) ➞ Display (pop-up). The Display menu allows you to adjust the style, intensity level, graticule, and format features described below .
Acquiring and Displaying W aveforms 3–40 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–19: Display Menu — Style NOTE . TDS 500C and TDS 700C models only: See Using InstaV u Acquisition Mode, on page 3–55 , t o see how Style setup differs for InstaV u mode.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–41 1. TDS 600B: Press DISPLA Y ➞ Readout Options (main). TDS 500C and TDS 700C Models: Press DISPLA Y ➞ Mode (main) ➞ Normal (pop-up) ➞ Format/RO (main). 2.
Acquiring and Displaying W aveforms 3–42 TDS 500C, TDS 600B, & TDS 700C User Manual Sometimes, especially when using the hardcopy feature, you may want to display the current date and time on screen. (T o find more information displaying and setting date and time, see Date/T ime Stamp the Har dcopy on page 3–168.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–43 NOTE . Selecting either NTSC or P AL graticules automatically changes the vertical scale, position settings, coupling, and sets to zer o any vertical offset of any channel displayed.
Acquiring and Displaying W aveforms 3–44 TDS 500C, TDS 600B, & TDS 700C User Manual Since selecting YT or XY affects only the display , the horizontal and vertical scale and position knobs and menus control the same parameters regardless of the mode selected.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–45 Figure 3–21: Display Menu — Setting T o choose a palette of 13 colors from a menu of preset palettes: 1. Choose the starting palette by selecting Palette from the main menu.
Acquiring and Displaying W aveforms 3–46 TDS 500C, TDS 600B, & TDS 700C User Manual NOTE . Use at higher r oom temperatur es or with higher intensity display formats, such as the white fields in the Har dcopy Pr eview palette, can temporarily degrade display quality .
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–47 ScrTxt Figure 3–22: Display Menu — Palette Colors T o define math waveform colors: 1. Choose to define math waveform colors by selecting the main menu Map Math item.
Acquiring and Displaying W aveforms 3–48 TDS 500C, TDS 600B, & TDS 700C User Manual 2. Select one of the four reference waveforms by pressing Ref in the side menu. 3. T o assign the selected reference waveform to a specific color , press (repeatedly) Color and choose the value.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–49 2. Select the object(s) you want to restore by pressing Reset Curr ent Palette T o Factory , Reset All Palettes T o Factory or Reset All Mappings T o Factory in the side menu.
Acquiring and Displaying W aveforms 3–50 TDS 500C, TDS 600B, & TDS 700C User Manual T o help you use zoom effectively , consider how it operates on waveforms. When zooming vertically , the oscilloscope expands or contracts the selected waveform only .
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–51 T o use Zoom, select a waveform, turn Zoom on, and magnify that waveform using the vertical and horizontal scale knobs: 1. Press any of waveform selection buttons CH 1 through CH 4 on the right side of the display .
Acquiring and Displaying W aveforms 3–52 TDS 500C, TDS 600B, & TDS 700C User Manual Only the selected waveform (the top one) changes size. Figure 3–25: Zoom Mode with Horizontal Lock Set to No.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–53 2. T o scale or position the unmagnified waveform, press Selected Grati- cule (main) ➞ Lower (side). Use the vertical and horizontal knobs to scale and position the unmagnified waveform in the box.
Acquiring and Displaying W aveforms 3–54 TDS 500C, TDS 600B, & TDS 700C User Manual T o select Dual Zoom, press ZOOM ➞ Mode (main) ➞ Dual Zoom (side) to toggle it to ON . (See Figure 3–27.) Dual zoom displays a second zoomed view of the selected unzoomed waveform.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–55 Selected Graticule Zoomed W aveform Edges Zoom Boxes Unzoomed W aveform Figure 3–27: Dual Zoom — Shown Dua.
Acquiring and Displaying W aveforms 3–56 TDS 500C, TDS 600B, & TDS 700C User Manual InstaV u mode increases the waveform capture rate to up to 400,000 waveforms per second (maximum waveform rate depends on oscilloscope model), updating the waveform array many times between displays.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–57 Next Acquired W aveform Record Next Acquired W aveform Record 1st Set of Acquired W aveform Records Next Set o.
Acquiring and Displaying W aveforms 3–58 TDS 500C, TDS 600B, & TDS 700C User Manual T o change the InstaV u display style, do the following steps: 1. Press DISPLA Y ➞ Mode (main) ➞ InstaV u (pop-up) ➞ Style (main). 2. Select between V ectors and Dots in the side menu.
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–59 If you select any of these modes before or while InstaV u is on, they will remain selected in their respective menus, but the oscilloscope will ignore them. It will put the modes into effect when you turn InstaV u off.
Acquiring and Displaying W aveforms 3–60 TDS 500C, TDS 600B, & TDS 700C User Manual If you are using the FastFrame mode, you can jump to the desired frame. T o use FastFrame, do the following steps: 1. Press HORIZONT AL MENU ➞ FastFrame Setup (main) ➞ FastFrame (side) to toggle on or off the use of FastFrame (see Figure 3–31).
Acquiring and Displaying W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–61 If you shift the waveform right or left with the front-panel HORIZONT AL POSITION knob, the window next to the side-menu Frame button will indicate the frame number of the waveform at the center of the screen.
Acquiring and Displaying W aveforms 3–62 TDS 500C, TDS 600B, & TDS 700C User Manual.
TDS 500C, TDS 600B, & TDS 700C User Manual 3–63 T riggering on W aveforms T o use the TDS Oscilloscope to measure or monitor waveforms, you need to know how to trigger a stable display of those waveforms.
T riggering on W aveforms 3–64 TDS 500C, TDS 600B, & TDS 700C User Manual T riggered W aveform Untriggered Waveforms Figure 3–32: T riggered V ersus Untriggered Displays The trigger event establishes the time-zero point in the waveform record.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–65 The digitizing oscilloscope provides three standard triggers for the main trigger system: edge, pulse, and logic. Option 05 provides a video trigger . The standard triggers are described individually starting on page 3–72.
T riggering on W aveforms 3–66 TDS 500C, TDS 600B, & TDS 700C User Manual Automatic trigger mode (auto mode) enables the oscilloscope to acquire a waveform even if a trigger does not occur . Auto mode uses a timer that starts after a trigger event occurs.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–67 Holdoff Holdoff Indicates T rigger Points T rigger Level Holdoff Acquisition Interval Acquisition Interval T riggers are not recognized during holdoff time.
T riggering on W aveforms 3–68 TDS 500C, TDS 600B, & TDS 700C User Manual The slope control determines whether the oscilloscope finds the trigger point on the rising or the falling edge of a signal.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–69 T rigger Status Lights Figure 3–35: TRIGGER Controls and Status Lights T o quickly obtain an edge trigger or a glitch or width pulse trigger , press SET LEVEL TO 50% .
T riggering on W aveforms 3–70 TDS 500C, TDS 600B, & TDS 700C User Manual T o trigger on the next valid trigger event and then stop, press SHIFT FORCE TRIG . Now press the RUN/ST OP button each time you want to initiate the single sequence of acquisitions.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–71 T rigger Readout. T o quickly determine the settings of some key trigger parame- ters, check the T rigger readout at the bottom of the display . (See Figure 3–36.) The readouts differ for edge, logic, and pulse triggers.
T riggering on W aveforms 3–72 TDS 500C, TDS 600B, & TDS 700C User Manual T rigger Position Relative to the Display and Waveform Record T rigger Point Indicator Indicating the T rigger Position .
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–73 Main Time Base Main Time Base T ime/Div Main T rigger Source = Ch 1 Main T rigger Slope = Rising Edge Main T rigger Leve.
T riggering on W aveforms 3–74 TDS 500C, TDS 600B, & TDS 700C User Manual T o select which source you want for the trigger: Press TRIGGER MENU ➞ T ype (main) ➞ Edge (pop-up) ➞ Source (main) ➞ Ch1 , Ch2 , Ch3 , Ch4 , AC Line , or DC Aux (side).
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–75 Y ou can change the holdoff time and select the trigger mode using this menu item. See T rigger Modes and T rigger Holdoff beginning on page 3–65 for a description of these features.
T riggering on W aveforms 3–76 TDS 500C, TDS 600B, & TDS 700C User Manual 2. Select the rising or falling edge from the side menu. Press the TRIGGER MENU ➞ T ype (main) ➞ Edge (pop-up) ➞ Level (main) ➞ Level , Set to TTL , Set to ECL , or Set to 50% (side).
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–77 The Boolean logic function — select from AND, NAND, OR, and NOR The condition for triggering — whether the t.
T riggering on W aveforms 3–78 TDS 500C, TDS 600B, & TDS 700C User Manual For state triggering, the oscilloscope waits until the end of trigger holdoff and then waits until the edge of channel 4 transitions in the specified direction.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–79 S etup/hold triggering uses the setup/hold violation zone to detect when data is unstable too near the time it is clocked. Each time trigger holdoff ends, the oscilloscope monitors the data and clock sources.
T riggering on W aveforms 3–80 TDS 500C, TDS 600B, & TDS 700C User Manual Clock Signal Clock Level T S = Setup Time T H = Hold Time Setup/Hold Violation Zone = T S + T H T S + T H must be +2.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–81 T rigger Class = State Ch 1, 2, 3 Inputs = High, Don’t Care, Don’t Care Ch 4 Input = Rising Edge Logic = OR Figure 3–41: Logic T rigger Readouts — State Class Selected NOTE .
T riggering on W aveforms 3–82 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–42: Logic T rigger Menu T o Define Pattern Inputs. T o set the logic state for each of the input channels ( Ch1 , Ch2 , .
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–83 T o Define the Logic. T o choose the logic function you want applied to the input channels (see page 3–77 for definiti.
T riggering on W aveforms 3–84 TDS 500C, TDS 600B, & TDS 700C User Manual Note the position of the trigger indicator in Figure 3–43. T riggering occurs at the point that the oscilloscope determines that the logic function you specify is TRUE within the time you specify .
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–85 When you select the logic class State, the oscilloscope uses channel 4 as a clock and triggers on a logic circuit made from the rest of the channels (pages 3–76 through 3–78 describe how state triggers work).
T riggering on W aveforms 3–86 TDS 500C, TDS 600B, & TDS 700C User Manual T o Set Mode and Holdoff. Mode and holdoff can be set for all standard trigger types and classes. T o set mode and holdoff, refer to T o Set Mode & Holdoff on page 3–75.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–87 Set the Data and Clock Levels. T o set the transition levels that the clock and data must cross to be recognized by the oscilloscope: 1.
T riggering on W aveforms 3–88 TDS 500C, TDS 600B, & TDS 700C User Manual Data (Ch1) transition occurs within 10 ns after the clock violating hold time limit. The oscilloscope recognizes the violation and triggers at the clock edge. Cursors measure the setup/hold violation zone which equals setup time + hold time (30 ns).
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–89 T riggering on Pulses The TDS Oscilloscope can trigger on glitch or runt pulses, or it can trigger based on the width, slew rate, or timeout period of a pulse.
T riggering on W aveforms 3–90 TDS 500C, TDS 600B, & TDS 700C User Manual T rigger Class = Runt Figure 3–45: Pulse T rigger Readouts T able 3–7: Pulse trigger definitions Name Definition Glitch positive T riggering occurs if the oscilloscope detects positive spike widths less than the specified glitch time.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–91 T able 3–7: Pulse trigger definitions (cont.) Name Definition Slew positive T riggering occurs if the oscilloscope detects a positive pulse edge that after first crossing the lower threshold then crosses the upper threshold.
T riggering on W aveforms 3–92 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–46: Main T rigger Menu — Glitch Class Select the Source. T o specify which channel becomes the pulse trigger source: Press TRIGGER MENU ➞ T ype (main) ➞ Pulse (pop-up) ➞ Source (main) ➞ Ch1 , Ch2 , Ch3 , or Ch4 (side).
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–93 Set to Accept or Reject Glitch. T o specify whether to trigger on glitches or ignore glitches, press TRIGGER MENU ➞ T ype (main) ➞ Pulse (pop-up) ➞ Class (main) ➞ Glitch (pop-up) ➞ Glitch (main) ➞ Accept Glitch or Reject Glitch (side).
T riggering on W aveforms 3–94 TDS 500C, TDS 600B, & TDS 700C User Manual Select the Source. T o specify which channel becomes the pulse trigger source: Press TRIGGER MENU ➞ T ype (main) ➞ Pulse (pop-up) ➞ Source (main) ➞ Ch1 , Ch2 , Ch3 , or Ch4 (side).
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–95 Selected trigger bar at upper threshold. Runt Pulse Crosses First Threshold Only , Recrosses First Threshold Level, and T riggers Acquisition Unselected trigger bar at lower threshold.
T riggering on W aveforms 3–96 TDS 500C, TDS 600B, & TDS 700C User Manual Set the Mode and Holdoff. Mode and holdoff can be set for all standard trigger types and classes. T o set mode and holdoff, refer to Set Mode & Holdoff on page 3–75.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–97 3. T o set the range of pulse widths in units of time, press Upper Limit (side) and Lower Limit (side). Enter the values with the general purpose knob or keypad. The Upper Limit is the maximum valid pulse width the trigger source will look for .
T riggering on W aveforms 3–98 TDS 500C, TDS 600B, & TDS 700C User Manual Negative monitors the slew rate of the negative-going edges of pulses. The edge must first cross the upper threshold and then cross the lower threshold. Either monitors positive- and negative-going edges of pulses.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–99 Set to T rig When. The oscilloscope compares the pulse edge of the trigger source against the slew rate setting read out in the T rigger When menu.
T riggering on W aveforms 3–100 TDS 500C, TDS 600B, & TDS 700C User Manual T rigger Bar at Upper Threshold T rigger Bar at Lower Threshold Cursors Measure Slew Rate Components of Pulse Edge—dv.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–101 The T rigger When side menu indicates the oscilloscope will trigger on pulses with slew rates slower than the slew rate setting. Since the pulse edge slews at 20 mV/ns, which is faster than the slew rate setting of 16 mV/ns, the oscilloscope triggers.
T riggering on W aveforms 3–102 TDS 500C, TDS 600B, & TDS 700C User Manual Either causes a trigger to occur if the signal stays lower or stays higher than the trigger level for longer than the timeout value.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–103 Communications T riggering The TDS Oscilloscope can trigger on communication signals (option 2C only).
T riggering on W aveforms 3–104 TDS 500C, TDS 600B, & TDS 700C User Manual T able 3–8: Comm triggers (cont.) Standard Name Bit Rate Code 1 STS-1 AMI 51.84 Mb/s STS-3 CMI 155.52 Mb/s FC133 NRZ 132.8 Mb/s FC266 NRZ 265.6 Mb/s FC531 NRZ 531.2 Mb/s FC1063 NRZ 1.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–105 Figure 3–49: Main T rigger Menu — Comm T ype T o select the standard and bit rate of the communication signal that triggering will occur on: 1. Press TRIGGER MENU ➞ T ype (main) ➞ Comm (pop-up) ➞ Stan- dard (main).
T riggering on W aveforms 3–106 TDS 500C, TDS 600B, & TDS 700C User Manual T able 3–9: Communications pulse forms AMI CMI NRZ Isolated +1 Plus One Eye Diagram Isolated –1 Minus One Rise Eye .
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–107 There are two different ways to delay the acquisition of waveforms: delayed runs after main and delayed triggerable . Only delayed triggerable uses the delayed trigger system.
T riggering on W aveforms 3–108 TDS 500C, TDS 600B, & TDS 700C User Manual NOTE . Due to har dwar e limitations, the delayed time base cannot be made triggerable when the main trigger type is Logic, any class, or when the main trigger type is Pulse with Runt or Slew Rate classes selected.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–109 Time Delay (From Delay T rig Menu) Start Posttrigger Acquisition (T rigger on nth Delayed Trigger Event) Time Delay (Fr.
T riggering on W aveforms 3–1 10 TDS 500C, TDS 600B, & TDS 700C User Manual 4. If T ype is set to Pulse , press Class (main) and change it to either Glitch or Width as fits your application. Runt and Slew Rate pulse classes are incompatible with Delayed T riggerable.
T riggering on W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 1 1 Figure 3–53: Delayed T rigger Menu 8. Press Source (main) ➞ Ch1, Ch2, Ch3 , Ch4 , or DC Aux (side). NOTE . Selecting DC Aux as sour ce in BOTH the main and delayed triggering menus for ces main and delayed trigger levels to adjust in tandem.
T riggering on W aveforms 3–1 12 TDS 500C, TDS 600B, & TDS 700C User Manual 11 . Press Level (main) ➞ Level , Set to TTL , Set to ECL , or Set to 50% (side). Level lets you enter the delayed trigger level using the general purpose knob or the keypad.
TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 13 Measuring W aveforms T o make the best use of the TDS Oscilloscope when taking measurements, you need to know how to use the five types, or classes, of measurements it can take.
Measuring W aveforms 3–1 14 TDS 500C, TDS 600B, & TDS 700C User Manual T aking Automated Measurements The TDS Oscilloscope provides the feature Measur e for automatically taking and displaying waveform measurements. This section describes how to set up the oscilloscope to let it do the work of taking measurements for you.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 15 T able 3–10: Measurement definitions (cont.) Name Definition Cycle RMS V oltage measurement. The true Root Mean Square voltage over the first cycle in the waveform or the first cycle in the gated region.
Measuring W aveforms 3–1 16 TDS 500C, TDS 600B, & TDS 700C User Manual T able 3–10: Measurement definitions (cont.) Name Definition Phase Timing measurement. The amount one waveform leads or lags another in time. Expressed in degrees, where 360 comprise one waveform cycle.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 17 Measurement Readout Area Figure 3–55: Measurement Readouts with Statistics T o use the automatic measurements you first need to obtain a stable display of the waveform to be measured.
Measuring W aveforms 3–1 18 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–56: Measure Menu Be careful when taking automatic measurements using Extended Acquisition mode and high levels of waveform compression. The compression may remove signal attributes required by some measurements.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–1 19 When gating is activated, vertical cursors are displayed. Use these cursors to define the section of the waveform you want the oscilloscope to measure. (This section is called the gated r egion .
Measuring W aveforms 3–120 TDS 500C, TDS 600B, & TDS 700C User Manual NOTE . Cursors ar e displayed r elative to the selected waveform. If you ar e making a measur ement using two waveforms, this behavior can be a source of confusion.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–121 Then choose whether the References are set in % relative to High (100%) and Low (0%) or set explicitly in the units of the selected waveform (typically volts). See Figure 3–58 .
Measuring W aveforms 3–122 TDS 500C, TDS 600B, & TDS 700C User Manual The delay measurement lets you measure from an edge on the selected waveform to an edge on another waveform.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–123 4. TDS 600B: Press MEASURE ➞ Select Measrmnt (main) ➞ Delay (side) ➞ Edges (main). 5. TDS 500C and TDS 700C: Press MEASURE ➞ Measur e (pop-up) ➞ Select Measrmnt (main) ➞ Delay (side) ➞ Edges (main).
Measuring W aveforms 3–124 TDS 500C, TDS 600B, & TDS 700C User Manual T o use Snapshot, obtain a stable display of the waveform to be measured (pressing AUTOSET may help). Then do the following steps: 1. TDS 600B: Press MEASURE ➞ SNAPSHOT (main).
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–125 Consider the following rules when taking a snapshot: Be sure to display the waveform properly before taking a snapshot. Snapshot does not warn you if a waveform is improperly scaled (clipped, low signal amplitude, low resolution, etc.
Measuring W aveforms 3–126 TDS 500C, TDS 600B, & TDS 700C User Manual T o display measurement statistics, obtain a stable display of the waveform to be measured. Then do the following steps: 1. Press MEASURE ➞ Measur e (pop-up) ➞ Statistics (main) ➞ Statistics Min/Max or Statistics Mean/StdDev (side).
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–127 There are three cursor types: horizontal bar , vertical bar , and pair ed (see Figure 3–61). Horizontal Bar Cursors V ertical Bar Cursors Paired Cursors Figure 3–61: Cursor T ypes Horizontal bar cursors measure vertical parameters (typically volts).
Measuring W aveforms 3–128 TDS 500C, TDS 600B, & TDS 700C User Manual In tracking mode, you normally move both cursors in tandem using the general purpose knob. The two cursors remain a fixed distance (time or voltage) from each other . Press SELECT to temporarily suspend cursor tracking.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–129 Paired. The value after one D shows the voltage dif ference between the two X s; the other D shows the time (or frequency) difference between the two long vertical bars. The value after @ shows the voltage at the X of the selected cursor relative to ground.
Measuring W aveforms 3–130 TDS 500C, TDS 600B, & TDS 700C User Manual Non-selected Cursor (Dashed V ertical Bar) Cursor Readout (Paired) Selected Cursor (Solid V ertical Bar) Position of V ertic.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–131 T o adjust both cursors in tracking mode, use the general purpose knob to move both cursors. T o adjust the distance between cursors in tracking mode, press SELECT to temporarily suspend cursor tracking.
Measuring W aveforms 3–132 TDS 500C, TDS 600B, & TDS 700C User Manual T o find information on cursor units with video waveforms, see the TDS Family Option 05 V ideo T rigger Interface, if your oscilloscope is equipped with the video trigger option.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–133 T o measure the time of a waveform, repeat the process just described, but count the horizontal divisions and multiply by the horizontal scale factor .
Measuring W aveforms 3–134 TDS 500C, TDS 600B, & TDS 700C User Manual V ertical displays a vertical histogram that shows how your vertical units vary in the histogram box. A vertical histogram is displayed starting at the left edge of the graticule.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–135 The TDS Oscilloscope provides you with 10 histogram measurements. T able 3–1 1 lists brief definitions of the measurements. T able 3–1 1: Measurement definitions Name Definition Mean The average of all acquired points within (or on) the histogram box.
Measuring W aveforms 3–136 TDS 500C, TDS 600B, & TDS 700C User Manual 2. Press MEASURE ➞ Histogram (pop-up) ➞ Histogram Measrmnt (main). 3. Select a measurement from the side menu (see T able 3–1 1 on page 3–135). The Remove Measrmnt selection provides the same functions as in the Measure menu.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–137 Figure 3–66: Mask menu NOTE . If you select Manual, some contr ols ar e automatically adjusted; if you select Auto, a complete Autoset is performed.
Measuring W aveforms 3–138 TDS 500C, TDS 600B, & TDS 700C User Manual T o enable the optical reference receiver (option 3C and 4C) required by some optical standards that require a Bessel–Thompson response, press MEA- SURE ➞ Measure (main) ➞ Masks (pop-up) ➞ Mask Options (main).
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–139 3. Y ou create or edit a mask by moving a cross-hair cursor on the display and adding or deleting points as required. T o move the cursor , turn the general purpose knob. T o change the cursor direction, press SELECT .
Measuring W aveforms 3–140 TDS 500C, TDS 600B, & TDS 700C User Manual These points form the bottom of the mask These points form the top of the mask Left-most point Right-most point T op/bottom .
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–141 T able 3–12: Standard masks SONET SDH ITU-T T1.102 Fibre channel Video Miscellaneous None None None None None None OC1/STM0 51.84 Mb/s DS–0 Sgl Single 64.4 kb/s DS1 1.544 Mb/s FC133 Optical 132.
Measuring W aveforms 3–142 TDS 500C, TDS 600B, & TDS 700C User Manual The TDS Oscilloscope lets you compensate the internal signal path used to acquire the waveforms you measure. SPC optimizes the oscilloscope capability to make accurate measurements based on the ambient temperature.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–143 Figure 3–68: Performing a Signal Path Compensation The TDS Oscilloscopes allow you to adjust a relative time delay for each channel. This feature lets you align the signals to compensate for the fact that signals may come in from cables of differing lengths.
Measuring W aveforms 3–144 TDS 500C, TDS 600B, & TDS 700C User Manual Run a Probe Cal anytime you wish to ensure that the measurements you make are made with the most accuracy possible. Y ou should also run a Probe Cal if you have changed to a different probe since the last Probe Cal was performed.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–145 2. Power on the digitizing oscilloscope and allow a 20 minute warm-up before doing this procedure. 3. Press SHIFT UTILITY ➞ System (main) ➞ Cal (pop-up). 4. Look at the status label under Signal Path in the main menu.
Measuring W aveforms 3–146 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–69: Probe Cal Menu and Gain Compensation Display If gain compensation did not complete successfully , you may.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–147 15. Note the compensation error amount. Skip to step 20. 16. Disconnect the probe from any signal you may have connected it to. Leave the probe installed on its channel. 17. Press OK Compensate Offset (side).
Measuring W aveforms 3–148 TDS 500C, TDS 600B, & TDS 700C User Manual If you execute a successful Probe Cal on an input channel, the oscilloscope stores the compensation data it derived in nonvolatile memory . Therefore, this data is available when you turn the oscilloscope off and back on and when you change probes.
Measuring W aveforms TDS 500C, TDS 600B, & TDS 700C User Manual 3–149 Figure 3–70: Re-use Probe Calibration Data Menu NOTE . If the Re-use Probe Calibration data menu is displayed, do not select OK Use Existing Data if the pr obe curr ently installed is not of the same impedance stor ed for the Pr obe Cal.
Measuring W aveforms 3–150 TDS 500C, TDS 600B, & TDS 700C User Manual T able 3–13: Probe cal status be al 1 Ue a i T ype probe connected 2 Pro be C al ’d? 1 U s e r a ct i on Simple interfac.
TDS 500C, TDS 600B, & TDS 700C User Manual 3–151 Saving W aveforms and Setups The TDS Oscilloscope can save and recall the waveforms you measure and the setups you use to measure them.
Saving W aveforms and Setups 3–152 TDS 500C, TDS 600B, & TDS 700C User Manual T o save the current setup of the oscilloscope: 1. Press SA VE/RECALL SETUP ➞ Save Curr ent Setup (main).
Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–153 NOTE . Upon power on, the oscilloscope cr eates the “wild card” file, marked in the file utilities menu by the name TEK?????.SET and by a wild car d icon as shown on the left of this page, f or s t or in g s et u ps .
Saving W aveforms and Setups 3–154 TDS 500C, TDS 600B, & TDS 700C User Manual Executing T ek Secure accomplishes the following tasks: Replaces all waveforms in reference memories with zero sample values. Replaces the current front panel setup and all setups stored in setup memory with the factory setup.
Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–155 T o save a waveform, do the following steps: 1. Select the channel that has the waveform you want to save.
Saving W aveforms and Setups 3–156 TDS 500C, TDS 600B, & TDS 700C User Manual NOTE . Using this pr ocedur e to save an extended acquisition only saves the waveform. In this case, if the trigger position is shown at 0% or 100%, the actual position may be outside the saved waveform.
Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–157 T o select the format that the oscilloscope uses to save waveforms to a disk: TDS 600B: Press save/recall W A VEFORM ➞ Save Format (main) ➞ Internal , MathCad , or Spreadsheet (side).
Saving W aveforms and Setups 3–158 TDS 500C, TDS 600B, & TDS 700C User Manual T o remove all stored reference waveforms and setups, use the feature called T ek Secure. See T o Delete All Setups and W aveforms on page 3–153. T o display a waveform in internal reference memory: Press MORE ➞ Ref1 , Ref2 , Ref3 , or Ref4 (main).
Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–159 TDS 500C or TDS 700C: Press SA VE/RECALL W A VEFORM ➞ Normal (pop-up) ➞ Recall Wfm T o Ref (main) ➞ Recall From File (side). Then use the general purpose knob to select the exact file from the resulting scrollbar list.
Saving W aveforms and Setups 3–160 TDS 500C, TDS 600B, & TDS 700C User Manual Consider the following operating characteristics when using autosave. Autosave saves all “live” waveforms; that is, waveforms displayed in CH 1 – CH 4. T o be saved, the live waveforms must be displayed on screen.
Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–161 3. Press File Utilities in the main menu to bring up the File Utilities side menu. (See Figure 3–74.) NOTE . The amount of fr ee space on the active disk is shown in the upper right corner of the display .
Saving W aveforms and Setups 3–162 TDS 500C, TDS 600B, & TDS 700C User Manual T o delete a file or directory , turn the general purpose knob until it scrolls the cursor over the line marked with both the name of the file or directory to delete and the file icon or directory icon as shown to the left of this page.
Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–163 T o copy a file or directory , turn the general purpose knob until it scrolls the cursor over the name of the file to copy . Then, press the side menu Copy button. The file menu will reappear with the names of directories to copy to.
Saving W aveforms and Setups 3–164 TDS 500C, TDS 600B, & TDS 700C User Manual T o turn on or off the file overwrite lock, toggle the side menu Overwrite Lock button. When overwrite lock is on, the oscilloscope will not permit you to write over an existing file of the same name.
Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–165 The oscilloscope prints hardcopies of its display in many formats, which allows you to choose from a wide variety of hardcopy devices. It also makes it easier for you to place oscilloscope screen copies into a desktop publishing system.
Saving W aveforms and Setups 3–166 TDS 500C, TDS 600B, & TDS 700C User Manual Some formats, particularly Interleaf, EPS, TIFF , PCX, BMP , and HPGL, are compatible with various desktop publishing packages.
Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–167 Set Hardcopy Parameters. T o specify the hardcopy format, layout, and type of port using the hardcopy menu, do the following steps: 1. Press SHIFT ➞ HARDCOPY MENU to bring up the Hardcopy menu.
Saving W aveforms and Setups 3–168 TDS 500C, TDS 600B, & TDS 700C User Manual Date/Time Stamp the Hardcopy . Y ou can display the current date and time on screen so that they appear on the hardcopies you print. T o date and time stamp your hardcopy , do the following steps: 1.
Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–169 Set the Date and Time. Y ou might need to set the date and time of the oscillo- scope. T o set those parameters, do the following steps: 1. Press SHIFT ➞ UTILITY ➞ Config (pop-up) ➞ Set Date & Time (main) ➞ Y ear , Day Month , Hour , or Minute (side).
Saving W aveforms and Setups 3–170 TDS 500C, TDS 600B, & TDS 700C User Manual Some devices, such as the T ektronix HC100 Plotter , use the GPIB interface. Many printers, such as the T ektronix HC200, use Centronics interfaces. Many hardcopy devices, including the HC100 and HC200 with option 03, provide RS-232 support.
Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–171 Although not guaranteed, usually about 2.5 hardcopies can be spooled before the oscilloscope must wait to send the rest of the third copy . T o send hardcopies to a disk, do the following steps: 1.
Saving W aveforms and Setups 3–172 TDS 500C, TDS 600B, & TDS 700C User Manual T o make your hardcopies, use the procedures that follow . Connect to a Hardcopy Device.
Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–173 NOTE . If you defined another name, use it instead of “DEV1”. Also, r emember that the device addr ess of the oscilloscope as set with the IBCONF .EXE pr ogram should match the addr ess set in the oscilloscope Utility menu (typically , use “1”).
Saving W aveforms and Setups 3–174 TDS 500C, TDS 600B, & TDS 700C User Manual Communicating with Remote Instruments The TDS Oscilloscope can connect into a system environment, so that you can control it remotely or exchange measurement or waveform data between it and a computer .
Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–175 T urn on at least two-thirds of the device loads present when you use your network. Include only one cable path between devices on your network. (See Figure 3–81.
Saving W aveforms and Setups 3–176 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–82: Stacking GPIB Connectors T o set up remote communications, be sure your setup will meet GPIB protocol and interface requirements just described. Then do the following procedures.
Saving W aveforms and Setups TDS 500C, TDS 600B, & TDS 700C User Manual 3–177 Configure the GPIB Port. Y ou must set two important GPIB parameters: mode and address.
Saving W aveforms and Setups 3–178 TDS 500C, TDS 600B, & TDS 700C User Manual See Printing a Har dcopy , on page 3–164. See the TDS Pr ogrammer Manual disk.
TDS 500C, TDS 600B, & TDS 700C User Manual 3–179 Determining Status and Accessing Help The TDS Oscilloscope can display the status of its internal systems.
Determining Status and Accessing Help 3–180 TDS 500C, TDS 600B, & TDS 700C User Manual Firmware V ersion Figure 3–85: Status Menu — System.
Determining Status and Accessing Help TDS 500C, TDS 600B, & TDS 700C User Manual 3–181 Displaying the Banner T o display the banner (lists firmware version, options, copyright, and patents): Press SHIFT ST A TUS ➞ Banner (main). (See Figure 3–86.
Determining Status and Accessing Help 3–182 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–87: Initial Help Screen When you press that button, the instrument changes mode to support on-line help. Press HELP again to return to regular operating mode.
TDS 500C, TDS 600B, & TDS 700C User Manual 3–183 Using Features for Advanced Applications The TDS Oscilloscope provides powerful features for testing and digitally proces - sing the waveforms you acquire.
Using Features for Advanced Applications 3–184 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–88: Comparing a W aveform to a Limit T emplate T o do the tasks just listed, do the following procedures: T o use an incoming or stored waveform to create the limit test template, first you select a source and specify a template destination.
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–185 Figure 3–89: Acquire Menu — Create Limit T est T emplate 4. Press ± V Limit (side). Enter the vertical (voltage) tolerance value using the general purpose knob or keypad.
Using Features for Advanced Applications 3–186 TDS 500C, TDS 600B, & TDS 700C User Manual T o view the template you have created, press the MORE button. Then press the button corresponding to the destination reference memory you have used. The waveform appears on the display .
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–187 2. Ensure that the side button corresponding to the desired action reads ON . If you want to send a hardcopy command when waveform data exceeds the limits set, toggle Hardcopy if Condition Met (side) to ON .
Using Features for Advanced Applications 3–188 TDS 500C, TDS 600B, & TDS 700C User Manual Y ou can also compare more than one waveform against a single template, or more than one waveform with each one compared against its own template or a common template.
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–189 T o perform waveform math, use the More menu (Figure 3–90). The More menu allows you to display , define, and manipulate three math waveforms; the following steps explain how to create a math waveform based on a single source waveform: 1.
Using Features for Advanced Applications 3–190 TDS 500C, TDS 600B, & TDS 700C User Manual T o create a math waveform that requires two waveform sources, do the following steps: 1. Press MORE ➞ Math1 , Math2 , or Math3 (main) ➞ Change Math waveform definition (side) ➞ Dual Wfm Math (main).
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–191 Y ou can also select whether or not you wish to average a certain math waveform; to do so, perform the following steps: 1. Press MORE ➞ Math1 , Math2 , or Math3 (main) to select the math waveform to be averaged.
Using Features for Advanced Applications 3–192 TDS 500C, TDS 600B, & TDS 700C User Manual The FFT computes and displays the frequency content of a waveform you acquire as an FFT math waveform.
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–193 Normal W aveform of an Impulse Response FFT W aveform of the Magnitude Response FFT W aveform of the Phase Response Figure 3–92: System Response to an Impulse T o obtain an FFT of your waveform, do the following steps: 1.
Using Features for Advanced Applications 3–194 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–93: Define FFT W aveform Menu 7. Press Set FFT V ert Scale to (side) repeatedly to choose from the following vertical scale types: dBV RMS — Magnitude is displayed using log scale, expressed in dB relative to 1 V RMS where 0 dB =1 V RMS .
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–195 8. Press Set FFT Window to (side) repeatedly to choose from the following window types: Rectangular — .
Using Features for Advanced Applications 3–196 TDS 500C, TDS 600B, & TDS 700C User Manual Figure 3–94: FFT Math W aveform in Math1 Once you have displayed an FFT math waveform, use cursors to measure its frequency amplitude or phase angle.
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–197 Figure 3–95 shows the cursor measurement of a frequency magnitude on an FFT . The @: readout reads 0 dB because it is aligned with the 1 V RMS level. The D : readout reads 24.
Using Features for Advanced Applications 3–198 TDS 500C, TDS 600B, & TDS 700C User Manual 9. Read the frequency difference between the cursors from the : readout. Read the frequency of the selected cursor relative to the zero frequency point from the @: readout.
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–199 W aveform Recor d — the complete waveform record acquired from an input channel and displayed from the same channel or a reference memory . The length of this time domain record is user-specified from the Horizontal menu.
Using Features for Advanced Applications 3–200 TDS 500C, TDS 600B, & TDS 700C User Manual FFT s T ransform Time Records to Frequency Records. The FFT time domain record just described is input for the FFT . Figure 3–97 shows the transformation of that time domain data record into an FFT frequency domain record.
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–201 The following topics contain information to help you display your FFT properly . Adjust for a Non-Clipped Display . T o properly display your FFT waveform, scale the source waveform so it is not clipped.
Using Features for Advanced Applications 3–202 TDS 500C, TDS 600B, & TDS 700C User Manual T o speed up oscilloscope response when using long record lengths, you can save your source waveform in a reference memory and perform an FFT on the saved waveform.
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–203 Whether Zoom is on or off, you can press Reset (main) ➞ Reset Live Factors or Reset All Factors (side) to return the zoomed FFT waveform to no magnifi- cation.
Using Features for Advanced Applications 3–204 TDS 500C, TDS 600B, & TDS 700C User Manual Filter the input to bandwidth limit it to frequencies below that of the Nyquist frequency .
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–205 T o measure the phase relative to most source waveforms, you need only to center the positive peak around the zero phase point. (For instance, center the positive half cycle for a sine or square wave around the zero phase point.
Using Features for Advanced Applications 3–206 TDS 500C, TDS 600B, & TDS 700C User Manual Y ou specify the phase suppression level in dB with respect to 1 V RMS . If the magnitude of the frequency is greater than this threshold, then its phase angle will be displayed.
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–207 The FFT windowing acts like a bandpass filter between the FFT time domain record and the FFT frequency domain record.
Using Features for Advanced Applications 3–208 TDS 500C, TDS 600B, & TDS 700C User Manual In step 8 (page 3–195) in T o Cr eate an FFT , the four windows are listed in order according to their ability to resolve frequencies versus their ability to accurately measure the amplitude of those frequencies.
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–209 Leakage results when the time domain waveform delivered to the FFT function contains a non-integer number of waveform cycles. Since there are fractions of cycles in such records, there are discontinuities at the ends of the record.
Using Features for Advanced Applications 3–210 TDS 500C, TDS 600B, & TDS 700C User Manual Rectangular Window 0 dB -20 -40 -50 Hanning Window 0 dB -20 -40 -60 -80 Hamming Window 0 dB -20 -40 -60 Blackman-Harris Window 0 dB -20 -40 -60 -80 -100 -101 FFT Window T ype Bandpass Filter 0.
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–21 1 The math waveform, derived from the sampled waveform, is computed based on the following equation: Y n .
Using Features for Advanced Applications 3–212 TDS 500C, TDS 600B, & TDS 700C User Manual Derivative Math Waveform Source Waveform Figure 3–101: Derivative Math W aveform Once you have displayed your derivative math waveform, you can use automated measurements to make various parameter measurements.
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–213 Figure 3–102: Peak-Peak Amplitude Measurement of a Derivative W aveform The settings you make for offset, scale, and position af fect the math waveform you obtain.
Using Features for Advanced Applications 3–214 TDS 500C, TDS 600B, & TDS 700C User Manual Because of the method the oscilloscope uses to scale the source waveform before differentiating that waveform, the derivative math waveform may be too lar ge vertically to fit on screen — even if the source waveform is only a few divisions on screen.
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–215 Whether zoom is on or off, you can press Reset (main) ➞ Reset Live Factors or Reset All Factors (side) to return the zoomed derivative waveform to no magnification.
Using Features for Advanced Applications 3–216 TDS 500C, TDS 600B, & TDS 700C User Manual T o obtain an integral math waveform, do the following steps: 1. Connect the waveform to the desired channel input and select that channel. 2. Adjust the vertical and horizontal scales and trigger the display (or press AUTOSET ).
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–217 Source Waveform Integral Math W aveform Figure 3–103: Integral Math W aveform Once you have displayed your integrated math waveform, use cursors to measure its voltage over time.
Using Features for Advanced Applications 3–218 TDS 500C, TDS 600B, & TDS 700C User Manual Source Waveform Integral Math W aveform Figure 3–104: H Bars Cursors Measure an Integral Math W aveform 7.
Using Features for Advanced Applications TDS 500C, TDS 600B, & TDS 700C User Manual 3–219 13. Read the following values from the cursor readouts: Read the integrated voltage over time between the X s of both paired cursors in volt-seconds from the : readout.
Using Features for Advanced Applications 3–220 TDS 500C, TDS 600B, & TDS 700C User Manual Y ou may be able to avoid saturating your integral waveform if you choose a shorter record length.
Appendices.
TDS 500C, TDS 600B, & TDS 700C User Manual A–1 Appendix A: Options and Accessories This appendix describes the various options as well as the standard and optional accessories that are available for the TDS Oscilloscope.
Appendix A: Options and Accessories A–2 TDS 500C, TDS 600B, & TDS 700C User Manual T able A–1: Options (cont.) Option # Description Label 1M 130,000 record length Extend record length from 50,.
Appendix A: Options and Accessories TDS 500C, TDS 600B, & TDS 700C User Manual A–3 T able A–1: Options (cont.) Option # Description Label 2D T wo probes Delete two standard probes normally shipped with the oscilloscope (Option applies only to TDS 520C, TDS 620B, and TDS 724C models.
Appendix A: Options and Accessories A–4 TDS 500C, TDS 600B, & TDS 700C User Manual T able A–2: Standard Accessories (Cont.) Accessory Part Number Probes: TDS 754C: Four P6139A 10X, 500 MHz Pas.
Appendix A: Options and Accessories TDS 500C, TDS 600B, & TDS 700C User Manual A–5 The following optional accessory probes are recommended for use with your oscilloscope: P6701B Optical-to-E.
Appendix A: Options and Accessories A–6 TDS 500C, TDS 600B, & TDS 700C User Manual P5100 High V oltage Passive probe, 2.5 kV , DC to 250 MHz P5205 High V oltage differential probe, 1.3 kV (differential), DC to 100 MHz ADA 400A differential preamp, switchable gain AM 503S — DC/AC 50 MHz Current measurement system, AC/DC.
Appendix A: Options and Accessories TDS 500C, TDS 600B, & TDS 700C User Manual A–7 The optional accessories listed in T able A–4 are T ektronix software products recommended for use with your oscilloscope.
Appendix A: Options and Accessories A–8 TDS 500C, TDS 600B, & TDS 700C User Manual.
TDS 500C, TDS 600B, & TDS 700C User Manual B–1 Appendix B: Algorithms The TDS Oscilloscope can take 25 automatic measurements. By knowing how it makes these calculations, you may better understand how to use your oscillo- scope and how to interpret your results.
Appendix B: Algorithms B–2 TDS 500C, TDS 600B, & TDS 700C User Manual Histogram Method — attempts to find the highest density of points above and below the waveform midpoint. It attempts to ignore ringing and spikes when determining the 0% and 100% levels.
Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–3 LowRef — the waveform low reference level. Used in fall and rise time calculations.
Appendix B: Algorithms B–4 TDS 500C, TDS 600B, & TDS 700C User Manual MCross1, MCross2, and MCross3 — refer to the first, second, and third cross times, respectively .
Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–5 StartCycle — is the starting time for cycle measurements. It is a floating-point number with values between 0.0 and ( – 1.0), inclusive.
Appendix B: Algorithms B–6 TDS 500C, TDS 600B, & TDS 700C User Manual Measurement Algorithms The automated measurements are defined and calculated as follows: = – The arithmetic area for one waveform.
Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–7 T iming measurement. The duration of a burst. 1. Find on the waveform. This is . 2. Find the last (begin the search at and search toward ).
Appendix B: Algorithms B–8 TDS 500C, TDS 600B, & TDS 700C User Manual T iming measurement. The amount of time between the and crossings of two different traces, or two dif ferent places on the same trace.
Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–9 High HighRef LowRef Low TLF THF Fall Time Figure B–2: Fall Time 3. From , continue the search, looking for a crossing of . Update if subsequent crossings are found.
Appendix B: Algorithms B–10 TDS 500C, TDS 600B, & TDS 700C User Manual 0% (lowest) voltage reference value calculated. (See High, Low on page B–1.) Using the min-max measurement technique: = Amplitude (voltage) measurement.
Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–1 1 T iming measurement. The ratio of the negative pulse width to the signal period expressed as a percentage. NegativeW idth is defined in Negative Width , below . If P eriod = 0 or undefined then return an error .
Appendix B: Algorithms B–12 TDS 500C, TDS 600B, & TDS 700C User Manual T iming measurement. T ime taken for one complete signal cycle. The reciprocal of frequency . Measured in seconds. = – T iming measurement.
Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–13 T iming measurement. The ratio of the positive pulse width to the signal period, expressed as a percentage. P ositiveW idth is defined in Positive Width , following. If P eriod = 0 or undefined then return an error .
Appendix B: Algorithms B–14 TDS 500C, TDS 600B, & TDS 700C User Manual 3. From , continue the search, looking for a crossing of . Update if subsequent crossings are found. If a crossing is found, it becomes the high rise time or .
Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–15 The integration algorithm used by the oscilloscope is as follows: ŕ B A W ( t ) dt is approximated by ŕ B A W ^ ( t ) dt where: W(t) is the sampled waveform ^ ( ) is the continuous function obtained by linear interpolation of W(t) A and B are numbers between 0.
Appendix B: Algorithms B–16 TDS 500C, TDS 600B, & TDS 700C User Manual Measurements on Envelope W aveforms T ime measurements on envelope waveforms must be treated differently from time measurements on other waveforms, because envelope waveforms contain so many apparent crossings.
Appendix B: Algorithms TDS 500C, TDS 600B, & TDS 700C User Manual B–17 2. If the pair > , use the minima, else use maxima. If all pairs straddle , use maxima. See Figure B–4. The Burst W idth measurement always uses both maxima and minima to determine crossings.
Appendix B: Algorithms B–18 TDS 500C, TDS 600B, & TDS 700C User Manual.
TDS 500C, TDS 600B, & TDS 700C User Manual C–1 Appendix C: Packaging for Shipment If you ship the TDS Oscilloscope, pack it in the original shipping carton and packing material. If the original packing material is not available, package the instrument as follows: 1.
Appendix C: Packaging for Shipment C–2 TDS 500C, TDS 600B, & TDS 700C User Manual.
TDS 500C, TDS 600B, & TDS 700C User Manual D–1 Appendix D: Probe Selection The TDS Oscilloscope can use a variety of T ektronix probes for taking different kinds of measurements.
Appendix E: Probe Selection D–2 TDS 500C, TDS 600B, & TDS 700C User Manual However , their 8 pF to 12 pF (over 60 pF for 1X) capacitive loading can distort timing and phase measurements.
Appendix E: Probe Selection TDS 500C, TDS 600B, & TDS 700C User Manual D–3 Figure D–1: T ypical High V oltage Probes Active V oltage Probes Active voltage probes, sometimes called “FET” probes, use active circuit elements such as transistors.
Appendix E: Probe Selection D–4 TDS 500C, TDS 600B, & TDS 700C User Manual Active probes offer low input capacitance (1 to 2 pF typical) while maintaining the higher input resistance of passive probes (10 k W to 10 M W ). Like Z O probes, active probes are useful for making accurate timing and phase measurements.
Appendix E: Probe Selection TDS 500C, TDS 600B, & TDS 700C User Manual D–5 Use a current probe by clipping its jaws around the wire carrying the current that you want to measure. (Unlike an ammeter which you must connect in series with the circuit.
Appendix E: Probe Selection D–6 TDS 500C, TDS 600B, & TDS 700C User Manual Applications include measuring the transient optical properties of lasers, LEDs, electro-optic modulators, and flashlamps.
TDS 500C, TDS 600B, & TDS 700C User Manual E–1 Appendix E: Inspection and Cleaning Inspect for dirt and damage on and clean the exterior of the TDS Oscilloscope. When done regularly , this preventive maintenance may prevent oscilloscope malfunction and enhance its reliability .
Appendix E: Cleaning E–2 TDS 500C, TDS 600B, & TDS 700C User Manual Inspection. Inspect the outside of the oscilloscope for damage, wear , and missing parts, using T able E–1 as a guide. Oscilloscopes that appear to have been dropped or otherwise abused should be checked thoroughly to verify correct operation and performance.
TDS 500C, TDS 600B, & TDS 700C User Manual F–1 Appendix F: Programmer Disk The TDS Family Programmer disk is a Microsoft W indows help file that covers operating your oscilloscope using the General Purpose Interface Bus (GPIB) (optional on some oscilloscopes).
Appendix F: Programmer Disk F–2 TDS 500C, TDS 600B, & TDS 700C User Manual.
Glossary.
TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–1 Glossary 2 + 2 channel operation T wo-plus-two channel operation limits the simultaneous display of channels to two of the four channels provided. Channels not displayed can be used to couple a triggering signal to the oscilloscope.
Glossary Glossary–2 TDS 500C, TDS 600B, & TDS 700C User Manual AND A logic (Boolean) function in which the output is true when and only when all the inputs are true. On the oscilloscope, that is a trigger logic pattern and state function. Area Measurement of the waveform area taken over the entire waveform or the gated region.
Glossary TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–3 Channel/probe deskew A relative time delay for each channel. This lets you align signals to compensate for the fact that signals may come in from cables of differing length.
Glossary Glossary–4 TDS 500C, TDS 600B, & TDS 700C User Manual Digitizing The process of converting a continuous analog signal such as a waveform to a set of discrete numbers representing the amplitude of the signal at specific points in time. Digitizing is composed of two steps: sampling and quantizing.
Glossary TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–5 General purpose knob The large front-panel knob with an indentation. Y ou can use it to change the value of the assigned parameter . Glitch positive trigger T riggering occurs if the oscilloscope detects positive spike widths less than the specified glitch time.
Glossary Glossary–6 TDS 500C, TDS 600B, & TDS 700C User Manual High The value used as 100% in automated measurements (whenever high ref, mid ref, and low ref values are needed as in fall time and rise time measure- ments). May be calculated using either the min/max or the histogram method.
Glossary TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–7 Interleaving TDS 500B and TDS 700A Models Only: A method by which these oscilloscopes attain higher digitizing speeds. The oscilloscope applies the digitizing resources of unused channels (that is, channels that are turned off) to sample those that are in use (turned on).
Glossary Glossary–8 TDS 500C, TDS 600B, & TDS 700C User Manual Mean Amplitude (voltage) measurement of the arithmetic mean over the entire waveform. Minimum Amplitude (voltage) measurement of the minimum amplitude. T ypically the most negative peak voltage.
Glossary TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–9 Oscilloscope An instrument for making a graph of two factors. These are typically voltage versus time. Peak Detect acquisition mode A mode in which the oscilloscope saves the minimum and maximum samples over two adjacent acquisition intervals.
Glossary Glossary–10 TDS 500C, TDS 600B, & TDS 700C User Manual Positive width A timing measurement of the distance (time) between two amplitude points — rising-edge MidRef (default 50%) and falling-edge MidRef (default 50%) — on a positive pulse.
Glossary TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–1 1 Rise time The time it takes for a leading edge of a pulse to rise from a LowRef value (typically 10%) to a HighRef value (typically 90%) of its amplitude. RMS Amplitude (voltage) measurement of the true Root Mean Square voltage.
Glossary Glossary–12 TDS 500C, TDS 600B, & TDS 700C User Manual Side menu Menu that appears to the right of the display . These selections expand on main menu selections. Side menu buttons Bezel buttons to the right of the side menu display . They allow you to select items in the side menu.
Glossary TDS 500C, TDS 600B, & TDS 700C User Manual Glossary–13 V ertical bar cursors The two vertical bars you position to measure the time parameter of a waveform record. The oscilloscope displays the value of the active (move- able) cursor with respect to the trigger and the time value between the bars.
Glossary Glossary–14 TDS 500C, TDS 600B, & TDS 700C User Manual.
Index.
TDS 500C, TDS 600B, & TDS 700C User Manual Index–1 Index Numbers 1/seconds (Hz) , Cursor menu, 3–131 2 + 2 channel operation, xiv , 1–1, 1–2, Glossary–1 20 MHz , V ertical menu, 3–17 2.
Index Index–2 TDS 500C, TDS 600B, & TDS 700C User Manual A verage acquisition mode, 3–30, 3–61, Glossary–2 A verage mode, Acquire menu, 3–184 A verage , Acquire menu, 3–33 A verage , M.
Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–3 Color , 3–44 How to set, 3–44 Color Deskjet, 3–165 Color Matches Contents , Color menu, 3–47, 3–48 Color menu, 3–44 Bold , 3.
Index Index–4 TDS 500C, TDS 600B, & TDS 700C User Manual D Data Source , Main T rigger menu, 3–86 Date/T ime On hardcopies, 3–168 T o set, 3–169 DC coupling, Glossary–3 DC offset, 3–20.
Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–5 YT , 3–43 Display , Display menu, 3–39 Display , Status menu, 3–179 Dots, 3–39 Dots style, Display menu, 3–186 Dots , Display m.
Index Index–6 TDS 500C, TDS 600B, & TDS 700C User Manual Frame Length , Horizontal menu, 3–60 Frame , Display menu, 3–42 Frame , Horizontal menu, 3–60 Frequency , 2–22, 3–1 15, Glossar.
Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–7 Histograms, 3–133 HistoMasks , Status menu, 3–179 Hits in Box, 3–135 Holdoff, trigger , 3–66, Glossary–6 Horiz Pos , Horizontal.
Index Index–8 TDS 500C, TDS 600B, & TDS 700C User Manual Level , T elecom T rigger menu, 3–106 Level, T rigger , 3–68 LF Rej , Main T rigger menu, 3–74 Lightness , Color menu, 3–46 Limit.
Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–9 Math1/2/3 , More menu, 3–191 Maximum, 3–1 15, Glossary–7 Mean, 3–1 15, 3–135, Glossary–8 Mean +– 1 StdDev , 3–135 Mean +.
Index Index–10 TDS 500C, TDS 600B, & TDS 700C User Manual Measure, 3–1 17, 3–124 More, 3–158, 3–189, 3–193, 3–21 1 Operation, 2–7 Pop-up, 2–8, Glossary–9 Save/Recall, 3–152 S.
Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–1 1 P P6205 Active Probe, 1–5 P6701A/B with calibration, A–2 P6703A/B with calibration, A–2 Packaging, C–1 Paired cursor , 3–127 .
Index Index–12 TDS 500C, TDS 600B, & TDS 700C User Manual Edge trigger , 3–72 General purpose knob, 2–6 Logic trigger , 3–79 Measurement, 3–1 16, 3–1 17 Record view , 2–6 Snapshot, 3.
Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–13 user status, 3–152 Save/Recall W A VEFORM button, 3–155, 3–160 Save/Recall W aveform menu, 3–155 active status, 3–155 Autosave.
Index Index–14 TDS 500C, TDS 600B, & TDS 700C User Manual Histo/Masks , 3–179 I/O , 3–179 System , 3–179 T rigger , 3–179 W aveforms , 3–179 StdDev , 3–135 Stop After Limit T est Con.
Index TDS 500C, TDS 600B, & TDS 700C User Manual Index–15 T riggering on W aveforms, 3–63 T riggering, Auto mode, Incompatible with InstaV u, 3–58 T rue for less than , Main T rigger menu, 3.
Index Index–16 TDS 500C, TDS 600B, & TDS 700C User Manual How to set up, 3–96–3–1 12 Width , Main T rigger menu, 3–92, 3–96 W indow , 3–206 Blackman-Harris, 3–195, 3–207, 3–210.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Tektronix TDS 700C c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Tektronix TDS 700C - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Tektronix TDS 700C, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Tektronix TDS 700C va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Tektronix TDS 700C, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Tektronix TDS 700C.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Tektronix TDS 700C. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Tektronix TDS 700C ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
