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Texas Instruments DEM-DAI3793A Table 4-3. Audio I/O, Table 4-4. I/F Controller (MSP430 ,TUSB3410 )

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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 output for HPOR/LOR

CN112 Analog audio output for HPCOM/MONO

CN113 Not used

CN114 Analog audio input for AIN1L/AIN2L (Selected by JP12:1-2 forAIN1L, 2-3 for AIN2L on Daughter Card #1)

CN115 Analog audio input for AIN1R/AIN2R (Selected by JP13:1-2 forAIN1R, 2-3 for AIN2R on Daughter Card #1)

CN116 Not used

CN117 Not used

U301 TOSLINK™. S/PDIF Optical output

CN301 S/PDIF coaxial output

SW301 Toggle switch. Opt/Coax selector for S/PDIF output

U302 TOSLINK. S/PDIF Optical output

CN302 S/PDIF coaxial input

CN305 2x9 header pins to connect digital audio I/F for ADC/DAC. If usingexternal signal source, all shorting plugs should be removed.

CN306 BNC connector to provide external clock for LC89052T (DIR: S/PDIFreceiver) on Daughter Card or PCM3793 directly as E-SCK.

CN307 2x5 header pins. System clock and bit clock selection to provideDIT4096 (DIT: S/PDIF transmitter). SCK and BCK should be providedfrom LC89052T as initial setting.

CN308, CN309–CN316 2x9 header pins and SMA connecters (x8) for connecting digitalaudio I/F with external devices or equipment. If using this feature, allshorting plugs on CN305 should be removed.

CN317 3x10 header pins. Path of I

2

C/SPI-interface selection (via USB orparallel port). Selected USB port for initial configuration. (Parallelport is not available.)

CN320 2x3 header pins. Word (L/R) clock selection (Master or Slave mode).Selected Slave mode as initial.

Table 4-4. I/F Controller (MSP430 ,TUSB3410 )

Connectors I/F Controller(MSP430, TUSB3410)

CN201 USB connector type-B

CN202 JTAG port

SW201 Push switch. RESET for MSP430/TUSB3410

SBAU127 – July 2007 Switches and Connectors 45Submit Documentation Feedback

Contents

Main Page Contents Page Page Page Page Page Preface Read This First Page Chapter 1 Description 1.1 IntroductionPCM3793A/94A 1.1.1 Key Features Page 1.2 Pin Assignments and Terminal Functions Pin Assignments and Terminal Functions 1.3 DEM-DAI3793A/3794A EVM Description DEM-DAI3793A/3794A EVM Description Table 1-1. PCM3793A/94A Terminal Functions (continued) Figure 1-3. DEM-DAI3793A/3794A EVM System Diagram Page Chapter 2 Getting Started Page Page Page Chapter 3 Set-Up Guide Page 3.2.2 Power On/Off Sequence 3.2.3 Module Function Controls Page Power Up/Down Time (ms) Options Page Gain Control for ADC Input Options Figure 3-8 shows the EVM modules that correspond to the record function. SBAU127 July 2007 Set-Up Guide 27Submit Documentation Feedback Figure 3-8. EVM Modules Corresponding to Record Function Gain Control for ADC Input Options Digital Mute (ATR) Options Digital Out Mute Control Options Page Headphone Gain Control Options Figure 3-10 shows the corresponding modules for the playback function. SBAU127 July 2007 Set-Up Guide 29Submit Documentation Feedback Figure 3-10. Modules Corresponding to Playback Function Headphone Gain Control Options Speaker Gain Control Options Digital Attenuation (ATP) Options Auto Level Control (Record) Options Source Options Output Options Tone Control Options 3D Effect Options Notch Filter 1 Coefficient, Notch Filter 2 Coefficient Options Page DAC Oversampling Control Options Zero Cross Control Options De-Emphasis Filter Options High-Pass Filter Options Page Analog Input Options Figure 3-19 illustrates the modules that correspond to the analog path function. Set-Up Guide36 SBAU127 July 2007Submit Documentation Feedback Figure 3-19. Modules Corresponding to Analog Path Function Analog Input Options D2S Select Options Analog Mixer Options Mic Boost Options This checkbox sets (or resets) the +20dB microphone pre-amp PG1 (L-ch) or PG2 (R-ch). Page Page 3.2.4 LC89052T (DIR: Digital Audio I/F Receiver) Control Window Page Page 3.2.6 Register Direct Access Chapter 4 Switches and Connectors 4.1 Overview 4.2 Motherboard Motherboard Table 4-3. Audio I/O Table 4-4. I/F Controller (MSP430 ,TUSB3410 ) 4.3 Daughter Card #1 (PCM3793A) Daughter Card #1 (PCM3793A) Figure 4-2. Analog Input Configuration (Daughter Card #1) HPOR/LOR HPOL/LOL Daughter Card #1 (PCM3793A) SBAU127 July 2007 Switches and Connectors 47Submit Documentation Feedback 4.4 Daughter Card #2 (DIR: LC89052T and DIT: DIT4096) Daughter Card #2 (DIR: LC89052T and DIT: DIT4096) Chapter 5 Evaluation and Measurements 5.1 Slave Mode With Audio Precision SYS-2722 (Default Setting) Slave Mode With Audio Precision SYS-2722 (Default Setting) Slave Mode With Audio Precision SYS-2722 (Default Setting) Figure 5-2. Jumper Configuration for Slave Mode (Default) 5.2 Master Mode with Audio Precision SYS-2722 Master Mode with Audio Precision SYS-2722 Figure 5-4. Jumper Configuration for Master Mode 5.3 Combined Master and Slave Modes With PSIA-2722 ADC AudioInterface Combined Master and Slave Modes With PSIA-2722 5.4 Measurements for Dynamic Characteristics 5.4.1 Digital-to-Analog (D/A) Performance 5.4.2 Analog-to-Digital (A/D) Performance 5.4.3 Speaker Output Power Performance 5.4.3.1 LC Low-Pass Filter Figure 5-7. Speaker Output Filter Configuration 5.4.4 Amplitude Versus Frequency Performance 5.4.4.1 A/D Spectrum 5.4.4.2 D/A Spectrum 5.5 Connection Diagram for Practical Applications PCM3793A/94A Connection Diagram for Practical Applications 5.5.1 Filter Consideration for Speaker Output + + 62 Evaluation and Measurements SBAU127 July 2007Submit Documentation Feedback Connection Diagram for Practical Applications Refer to the product data sheet for further information on this application circuit. C Schematic, PCB Layout, and Bill of Materials Page Page Page Page Page Page Page 6.3 Component List Component List SBAU127 July 2007 Schematic, PCB Layout, and Bill of Materials 71Submit Documentation Feedback Table 6-1 lists the Bill of Materials for the DEM-DAI3793A/3794A EVM. Table 6-1. Bill of Materials Page Page A.1 Reference .csv Files A Related Signal Flow Diagrams Figure A-1. Line Output and Headphone Output Figure A-2. Headphone Output with Sound Effect Figure A-3. Cap-Less Headphone Output Figure A-4. Headphone Output with Line Input (AIN2L/AIN2R) Figure A-5. Headphone Output with Mono Mic Input (AIN1L, +20dB) Figure A-6. Headphone Output with Mono Diff Mic Input (AIN1L/AIN1R, +20dB) Figure A-7. Stereo Speaker Output Figure A-8. Mono Speaker Output Figure A-9. Speaker Output with Line Input (AIN2L/AIN2R) Figure A-10. Speaker Output with Mono Mic Input (AIN1L, +20dB) Figure A-11. Speaker Output with Mono Diff Mic Input (AIN1L/AIN1R, +20dB) Figure A-12. Line Input (AIN2L/AIN2R) to Headphone Output Figure A-13. Mono Line Input (AIN2L) to Headphone Output Figure A-14. Mono Mic Input (AIN1L, +20dB) to Headphone Output Figure A-15. Mono Diff Mic Input (AIN1L/AIN1R, +20dB) to Headphone Output Figure A-16. Mono Mic Input (AIN1L, +20dB) to Speaker Output Figure A-17. Line Input (AIN3L/AIN3R) Figure A-18. Mic Input (AIN1L/AIN1R, +20dB) Figure A-19. Mic Input (AIN1L/AIN1R, +20dB) with ALC Figure A-20. Mono Mic Input (AIN1L, +20dB) Figure A-21. Mono Mic Input (AIN1L, +20dB) with ALC Figure A-22. Mono Diff Mic Input (AIN1L/AIN1R, +20dB) Figure A-23. Mono Diff Mic Input (AIN1L/AIN1R, +20dB) with ALC A.2 Interfacing to DSPs A.2.1 Register Control with DSP Interface A.3 Package Information Package Information Page IMPORTANT NOTICE