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Contents
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Preface
Read This First
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Chapter 1
Description
1.1 IntroductionPCM3793A/94A
1.1.1 Key Features
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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
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Chapter 2
Getting Started
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Chapter 3
Set-Up Guide
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3.2.2 Power On/Off Sequence
3.2.3 Module Function Controls
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Power Up/Down Time (ms) Options
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Gain Control for ADC Input Options
Figure 3-8 shows the EVM modules that correspond to the record function.
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Figure 3-8. EVM Modules Corresponding to Record Function
Gain Control for ADC Input Options
Digital Mute (ATR) Options
Digital Out Mute Control Options
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Headphone Gain Control Options
Figure 3-10 shows the corresponding modules for the playback function.
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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
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DAC Oversampling Control Options
Zero Cross Control Options
De-Emphasis Filter Options
High-Pass Filter Options
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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).
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3.2.4 LC89052T (DIR: Digital Audio I/F Receiver) Control Window
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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)
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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
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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
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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
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IMPORTANT NOTICE
