Manuel d'utilisation / d'entretien du produit DEM-DAI3793A du fabricant Texas Instruments
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DEM-DAI3793A/3794A EVM User's Guide July 2007 AIP Consumer Audio—TI Japan SBAU127.
2 SBAU127 – July 2007 Submit Documentation Feedback.
Contents Preface ............................................................................................................................... 9 1 Description ..........................................................................................
A.2 Interfacing to DSPs ............................................................................................... 98 A.2.1 Register Control with DSP Interface ................................................................... 99 A.3 Package Information .
List of Figures 1-1 PCM3793A Pin Assignments ............................................................................................. 14 1-2 PCM3794A Pin Assignments ................................................................................
6-2 PCM3793A DEM-PCM3793RHB-A (Daughter Card #1) .............................................................. 65 6-3 PCM3793A DEM-PCM3793RHB-A Board Layout—Silkscreen Side ................................................ 66 6-4 PCM3793A DEM-PCM3793RHB-A Board Layout—Component Side .
List of Tables 1-1 PCM3793A/94A Terminal Functions ..................................................................................... 14 3-1 Register Mapping for Power Up/Down Module .................................................................
SYS-2722, PSIA-2722 are registered trademarks of Audio Precision, Inc. SPI is a trademark of Motorola, Inc. I 2 S, I 2 C are trademarks of NXP Semiconductors. TOSLINK is a trademark of Toshiba Corporation. All other trademarks are the property of their respective owners.
Preface SBAU127 – July 2007 Read This First About This Manual This document provides the information needed to set up and operate the DEM-DAI3793A/3794A EVM evaluation module, a test platform for the 16-bit, low-power PCM3793A / PCM3794A stereo audio codecs.
www.ti.com Related Documentation From Texas Instruments Related Documentation From Texas Instruments The following documents provide information regarding Texas Instruments integrated circuits used in the assembly of the DEM-DAI3793A/3794A EVM. These documents are available from the TI web site .
Chapter 1 SBAU127 – July 2007 Description The DEM-DAI3793A/3794A EVM is a complete evaluation platform for the PCM3793A / PCM3794A 16-bit, low-power stereo audio codec with microphone bias, headphone, and digital speaker. All necessary connectors and circuitry are provided for interfacing to audio test systems and commercial audio equipment.
www.ti.com 1.1 Introduction—PCM3793A/94A 1.1.1 Key Features Introduction—PCM3793A/94A The PCM3793A/94A is a low-power stereo codec designed for portable digital audio applications.
www.ti.com Introduction—PCM3793A/94A blank • Programmable Function by Register Control: – Digital attenuation of DAC: 0dB to –62dB – Digital gain of DAC: 0dB, 6dB, 12dB, 18dB – Power up/do.
www.ti.com 1.2 Pin Assignments and Terminal Functions HPOR/LOR AIN2L BCK AIN2R 24 1 23 2 22 3 21 4 20 5 19 6 18 7 17 8 16 25 15 26 14 27 13 28 12 29 1 1 30 10 31 9 32 SPOLP AIN3L SPOLN AIN3R PGND MICB.
www.ti.com 1.3 DEM-DAI3793A/3794A EVM Description DEM-DAI3793A/3794A EVM Description Table 1-1. PCM3793A/94A Terminal Functions (continued) TERMINAL NAME PCM3793ARHB PCM3794ARHB I/O DESCRIPTION SCKI 7.
Description 16 SBAU127 – July 2007 Submit Documentation Feedback.
Chapter 2 SBAU127 – July 2007 Getting Started This chapter provides information regarding DEM-DAI3793A/3794A EVM handling and unpacking, absolute operating conditions, and a description of the factory default switch and jumper configuration. Topic .
www.ti.com 2.1 Electrostatic Discharge Warning 2.2 Unpacking the EVM Electrostatic Discharge Warning Many of the components on the DEM-DAI3793A/3794A EVM are susceptible to damage by electrostatic discharge (ESD).
www.ti.com 2.3 Default Configuration Default Configuration Figure 2-1 and Figure 2-2 illustrate the default EVM configuration and the default external equipment connection configuration, respectively.
www.ti.com Default Configuration Figure 2-2. EVM and External Equipment Connections The factory default configuration for the DEM-DAI3793A/3794A EVM is listed below.
Chapter 3 SBAU127 – July 2007 Set-Up Guide This chapter discusses how to set up the DEM-DAI3793A/3794A EVM and describes the EVM software. Topic .................................................................................................. Page 3.
www.ti.com 3.1 Basic Operating Set-Up 3.2 Software Control and Operation 3.2.1 User Interface Panel Basic Operating Set-Up Follow these steps to set up the DEM-DAI3793A/3794A EVM for operation. Step 1. When using the kit for the first time, install the TUSB3410 VCP (Virtual COM Port) driver to the host PC.
www.ti.com 3.2.2 Power On/Off Sequence 3.2.3 Module Function Controls Software Control and Operation Check to see that a Ready notation appears in the lower left-hand corner after successful I 2 C communication is established. Otherwise, you will see an error box showing a communication error (as shown in Figure 3-2 ).
www.ti.com 3.2.3.1 Power Up/Down Software Control and Operation This menu (shown in Figure 3-4 ) allows users to manually power up or power down each module. Click the appropriate checkboxes to power up or power down a specific module. Table 3-1 shows the register mapping for each module setting.
www.ti.com Power Up/Down Time (ms) Options Power Up/Down Time (ms) Options It is possible to select the V COM ramp up/down time from GND level to a common voltage level or vice-versa by choosing a V COM capacitor value and time by choosing one of the available checkboxes.
www.ti.com 3.2.3.2 Record Power Up/Down Time (ms) Options Figure 3-5. Ramp Up Wave Form with Default Figure 3-6. Ramp Down Wave Form with Setting Default Setting Figure 3-7 shows the Record function tab options.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com 3.2.3.3 Playback Digital Out Mute Control Options The Playback function is shown in Figure 3-9 . Figure 3-9. Playback Function Menu Tab 28 Set-Up Guide SBAU127 – July 2007 Submit Document.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com 3.2.3.4 ALC (Automatic Level Control) OutputAmplitude InputAmplitude Compression ( 2dB, 6dB, 12dB) --- Expansion (0dB,+6dB,+14dB,+24dB) 0dB 0dB Digital Attenuation (ATP) Opti.
www.ti.com 3.2.3.5 Signal Processing I 15 10 5 0 5 10 15 - - - Amplitude(dB) 10 100 1k 10k 100k Frequency(Hz) Source Options Figure 3-13 illustrates the Signal Processing 1 function menu tab.
www.ti.com 3D Effect Options 3D Effect Options By implementing a 3D effect in this option box, the PCM3793A is enabled to provide 3D sound to the headphone and speaker outputs with low power consumption during either ADC or DAC operation.
www.ti.com Amplitude(dB) Frequency(Hz) 0dB - 3dB f :CenterFrequency c f :BandwidthFrequency b Notch Filter 1 Coefficient, Notch Filter 2 Coefficient Options Figure 3-15 illustrates the notch filter characteristic.
www.ti.com 3.2.3.6 Signal Processing 2 DAC Oversampling Control Options The Signal Processing 2 Function menu tab is shown in Figure 3-17 . Figure 3-17. Signal Processing 2 Function Menu Tab DAC Oversampling Control Options Select the DAC oversampling control menu to determine the DAC oversampling rate.
www.ti.com 3.2.3.7 Analog Path High-Pass Filter Options Figure 3-18 shows the Analog Path Function menu. Figure 3-18. Analog Path Function Menu Tab SBAU127 – July 2007 Set-Up Guide 35 Submit Documen.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com 3.2.3.8 Audio Interface PG5 Gain and PG6 Gain Options PG5 Gain and PG6 Gain Options PG5 gain (for the left channel) or PG6 (for the right channel) can be adjusted from the available drop-down menu. Figure 3-20 shows the Audio Interface Function menu.
www.ti.com 3.2.3.9 Status Detect HP Detection Options The Status Detect function is shown in Figure 3-21 . Figure 3-21. Status Detect Function Menu Tab HP Detection Options Use this section of the menu to enable or disable the HP insertion detection process.
www.ti.com 3.2.3.10 Digital Amplifier 3.2.4 LC89052T (DIR: Digital Audio I/F Receiver) Control Window 3.2.4.1 Audio Clock/Data Control Options Speaker Short Detection, L-Ch; Speaker Short Detection, R-Ch Figure 3-22 shows the Digital Amplifier function.
www.ti.com 3.2.5 Register Setting History Speaker Short Detection, L-Ch; Speaker Short Detection, R-Ch When any checkboxes are selected on any tab of the software GUI (including power up/down operation, corresponding resistor address, and so forth), the register value is automatically written into the register setting history panel.
www.ti.com 3.2.5.1 Modifying a .csv File Speaker Short Detection, L-Ch; Speaker Short Detection, R-Ch The .csv file stores a sequence of register settings for the PCM3793A. To load a given register setting, it should be written in hex code, as shown in Figure 3-25 ; use the left row for resistor addresses and the right row for resistor values.
www.ti.com 3.2.6 Register Direct Access Speaker Short Detection, L-Ch; Speaker Short Detection, R-Ch Figure 3-26 illustrates the register direct access dialog. Read function: The Read function is only available in I 2 C mode. The register value can be read in I 2 C mode.
Chapter 4 SBAU127 – July 2007 Switches and Connectors This chapter reviews the DEM-DAI3793A/3794A EVM switch and jumper configuration. Topic .................................................................................................. Page 4.1 Overview .
www.ti.com 4.1 Overview 4.2 Motherboard Overview Figure 4-1 shows the location of the switches and connectors on the EVM board. Note: Silkscreen symbol CN320 is not printed on the motherboard, but it is located in the position described.
www.ti.com Motherboard Table 4-3. Audio I/O Connectors Audio I/O Pins CN108 Analog audio input for AIN3L CN109 Analog audio input for AIN3R CN110 Analog audio output for HPOL/LOL CN111 Analog audio ou.
www.ti.com 4.3 Daughter Card #1 (PCM3793A) AINL Connectedto CN114ofmotherboard Connectedto CN115ofmotherboard Connectedto CN108ofmotherboard Connectedto CN109ofmoth.
www.ti.com Connectedto CN112ofmotherboard Connectedto CN110ofmotherboard Connectedto CN111ofmotherboard J5 HPOUT(Cap-less) MONO LINEOUT (L -Ch) LINEOUT (R-Ch) SPOLN SPOLP SPORN SPORP HPCOM/MONO HPOR/L OR HPOL/L OL J6 HPOUT J4 SPOUT(R-Ch) J3 SPOUT(L -Ch) PCM3793A Daughter Card #1 (PCM3793A) Figure 4-3.
www.ti.com 4.4 Daughter Card #2 (DIR: LC89052T and DIT: DIT4096) Daughter Card #2 (DIR: LC89052T and DIT: DIT4096) Table 4-6 lists the connector references for the second DEM-DAI3793A/3794A EVM daughter card. Table 4-6. Analog Input and Output—Daughter Card #2 Connectors Analog Input and Output of Daughter Card #2 SW001 Toggle switch.
Chapter 5 SBAU127 – July 2007 Evaluation and Measurements This chapter discusses how to set up jumpers on the DEM-DAI3793A/3794A EVM motherboard for performance evaluation using the Audio Precision SYS-2722 ® or PSIA-2722 ® audio analyzers.
www.ti.com 5.1 Slave Mode With Audio Precision SYS-2722 (Default Setting) SCKI BCK LRCK DOUT DIN DAC DIR:LC89052T ADC PCM3793A Daughtercard#2 Daughtercard#1 DIT :DIT4096 U302 CN302 U.
www.ti.com Shortplug Shortplug Allopen Allshort Shortplug Shortplug CN305 CN307 T -SCLK GND T -BCK T -SCK T -LRCK T -BCK TX -DA T A T -LRCK E-SCLK TX -DA T A R-SCLK R-SCLK R-BCK R-BC.
www.ti.com 5.2 Master Mode with Audio Precision SYS-2722 SCKI BCK LRCK DOUT DIN DAC DIR:LC89052T ADC PCM3793A Daughtercard#2 Daughtercard#1 DIT :DIT4096 U302 CN302 U301 CN301 SW301 S.
www.ti.com Shortplug Shortplug Shortplug Allopen Shortplug CN305 CN307 T -SCLK GND T -BCK T -SCK T -LRCK T -BCK TX -DA T A T -LRCK E-SCLK TX -DA T A R-SCLK R-SCLK R-BCK R-BCK R-LRCK R-L.
www.ti.com 5.3 Combined Master and Slave Modes With PSIA-2722 SCKI BCK LRCK DOUT DIN DAC ADC PCM3793A Daughtercard#1 Clock Manager AudioInterface PSIA-2722 Slave Master Master Slave Combined .
www.ti.com Shortplug Shortplug Shortplug Shortplug Allopen CN305 CN307 T -SCLK GND T -BCK T -SCK T -LRCK T -BCK TX -DA T A T -LRCK E-SCLK TX -DA T A R-SCLK R-SCLK R-BCK R-BCK R-LRCK R-L.
www.ti.com 5.4.1 Digital-to-Analog (D/A) Performance Measurements for Dynamic Characteristics Measurement path: 01.Line Output and Headphone Output csv file: 01_DAC_Line_Output_and_Headphone_Output.csv Table 5-1. D/A Line Output Parameters Power Supply Parameter Filter Setting R L (k Ω ) LOL LOR 3.
www.ti.com 5.4.2 Analog-to-Digital (A/D) Performance 5.4.3 Speaker Output Power Performance Measurements for Dynamic Characteristics Measurement path: 17.Line Input (AIN3L/AIN3R) csv file: 17_ADC_Line_Input.csv Table 5-3. A/D Line Input Parameters Power Supply Parameter Filter Setting Left Channel Right Channel 3.
www.ti.com 5.4.3.1 LC Low-Pass Filter Note(1):SameconfigurationatSPORN/SPORP SPOL SPOR J3 J4 SnubberCircuit LCLPF SPOLN SPOLP L122 H m L222 H m C11 2.2 F m C12 2.2 F m C9 0.82 F m C8 0.82 F m R6 330 W R5 330 W R 8 L W Audio Analyzer Differential Input J3 TP2 TP1 + - f = C » 37.
www.ti.com 5.4.4 Amplitude Versus Frequency Performance 5.4.4.1 A/D Spectrum 0 20 40 60 80 100 120 140 - - - - - - - Amplitude(dB) AMPLITUDEvsFREQUENCY 0 5 10 15 20 Frequency(kHz) BPZ(Z.
www.ti.com 5.4.4.2 D/A Spectrum 0 20 40 60 80 100 120 140 - - - - - - - Amplitude(dB) AMPLITUDEvsFREQUENCY 0 5 10 15 20 Frequency(kHz) BPZ(ZeroData)Input 0 20 40 60 80 100 120 140.
www.ti.com 5.5 Connection Diagram for Practical Applications C 7 Stereo Headphone R 2 C 1 C 2 C 3 C 4 C 5 C 6 Lo w o r H igh R 1 R 4 SCKI (7) BCK(1) LRCK (32) DIN(2) DOUT (3) MO DE (28 ) MS/ADR .
www.ti.com 5.5.1 Filter Consideration for Speaker Output SPOLP/ SPORP SPOLN/ SPORN B 1 B 2 C 15 C 16 HDTI V CC + + HPOL HPOR PGND HPCOM HP Jack HDTI HPOL HPOR PGND HPCOM HP Jack ConventionalMode Ca.
Chapter 6 SBAU127 – July 2007 Schematic, PCB Layout, and Bill of Materials This chapter provides the electrical and physical layout information for the DEM-DAI3793A/3794A EVM. The bill of materials is included for component and manufacturer reference.
www.ti.com 6.1 Schematics Schematics Figure 6-1 and Figure 6-2 illustrate the schematics for the DEM-DAI3793A/3794A EVM. Figure 6-1. PCM3793A DEM-PCM3793RHB-A Connector (Daughter Card #1) 64 Schematic.
www.ti.com Schematics Figure 6-2. PCM3793A DEM-PCM3793RHB-A (Daughter Card #1) SBAU127 – July 2007 Schematic, PCB Layout, and Bill of Materials 65 Submit Documentation Feedback.
www.ti.com 6.2 Printed Circuit Board Layout Printed Circuit Board Layout Figure 6-3 through Figure 6-7 illustrate the printed circuit board (PCB) layout for the DEM-DAI3793A/3794A EVM.
www.ti.com Printed Circuit Board Layout Figure 6-4. PCM3793A DEM-PCM3793RHB-A Board Layout—Component Side SBAU127 – July 2007 Schematic, PCB Layout, and Bill of Materials 67 Submit Documentation F.
www.ti.com Printed Circuit Board Layout Figure 6-5. PCM3793A DEM-PCM3793RHB-A Board Layout—Inner Layer 2 68 Schematic, PCB Layout, and Bill of Materials SBAU127 – July 2007 Submit Documentation Fe.
www.ti.com Printed Circuit Board Layout Figure 6-6. PCM3793A DEM-PCM3793RHB-A Board Layout—Inner Layer 3 SBAU127 – July 2007 Schematic, PCB Layout, and Bill of Materials 69 Submit Documentation Fe.
www.ti.com Printed Circuit Board Layout Figure 6-7. PCM3793A DEM-PCM3793RHB-A Board Layout—Solder Side Schematic, PCB Layout, and Bill of Materials 70 SBAU127 – July 2007 Submit Documentation Feed.
www.ti.com 6.3 Component List Component List Table 6-1 lists the Bill of Materials for the DEM-DAI3793A/3794A EVM. Table 6-1. Bill of Materials RefDes Count Description Part Number MFR R3, R5, R6, R7, 5 330 Ω CF1/4C-33 Ω J KOA R8 CP1—CP4 4 0.1 μ F GRM188F5E104ZA01D Murata 1 C8, C9, C13, C14 4 0.
Schematic, PCB Layout, and Bill of Materials 72 SBAU127 – July 2007 Submit Documentation Feedback.
Appendix A SBAU127 – July 2007 Reference .csv Files, Interfacing to DSPs, and Package Information Topic .................................................................................................. Page A.1 Reference .csv Files ................
www.ti.com A.1 Reference .csv Files Reference .csv Files The .csv files are bundled with the DEM-DAI3793A/3794A EVM Controller. These files enable users to execute register settings corresponding to the specific operating modes discussed in the product data sheet by importing them into the software.
www.ti.com A Related Signal Flow Diagrams V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com V COM AIN3L AIN2L AIN1L AIN2R AIN3R AIN1R MICB DS ADC BCK DIN DOUT LRCK MS/ ADR MC/ SCL MD/ SDA MODE SerialInterface(SPI/I C) 2 SCKI AudioInterface V P A PGND V CC AGND V DD DGND H.
www.ti.com A.2 Interfacing to DSPs DSP SCKI BCK LRCK DOUT PCM3793A AudioInterface Clock Manager ADC DAC DSP SCKI BCK LRCK DOUT PCM3793A AudioInterface Clock Manager ADC DAC Interfacing to DSPs Refer to the following examples for interfacing the PCM3793A to a digital signal processor (DSP) in either slave or master mode.
www.ti.com A.2.1 Register Control with DSP Interface A.3 Package Information Package Information Table A-2 summarizes the recommended power-on sequence for the PCM3793A. The shaded cells within the table indicate specific register settings that must be configured for the device to properly operate with a DSP interface.
EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use.
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice.
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 Texas Instruments DEM-DAI3793A 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 Texas Instruments DEM-DAI3793A - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Texas Instruments DEM-DAI3793A, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Texas Instruments DEM-DAI3793A va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Texas Instruments DEM-DAI3793A, 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 Texas Instruments DEM-DAI3793A.
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 Texas Instruments DEM-DAI3793A. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Texas Instruments DEM-DAI3793A 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.
