Texas Instruments DEM-DAI3793A manual Headphone Gain Control Options, Speaker Gain Control Options

Page 29

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Headphone Gain Control Options

Figure 3-10shows the corresponding modules for the playback function.

PCM3794A￿has￿no￿Speaker￿Output

9

Module￿of￿Possible￿Power￿Up/Down

MD/

MC/

MS/

SCKI DOUT BCK LRCK DIN SDA

SCL

ADR MODE

 

Power￿On

Power

 

Clock

 

 

 

 

 

2

SPL

 

 

Reset

Up/Down

 

Audio￿Interface

 

 

 

 

 

 

Manager

 

Serial￿Interface￿(SPI/I C)

 

SPOLP

 

 

Manager

 

 

 

 

 

 

 

 

 

 

DGC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPOLN

 

 

 

 

 

 

ATR

 

 

 

 

 

 

 

 

 

 

 

 

(0dB/+6dB/+12dB/+18dB)

 

 

 

 

 

 

 

 

 

 

+6dB￿to −70dB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Mute)

 

 

 

 

 

 

 

 

 

 

PG1

PG5

 

 

 

 

 

 

SPR

 

 

 

 

 

 

ATP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AIN3L

MUX1

MUX3

 

 

 

 

 

(0dB￿to −62dB,￿Mute)

 

 

 

SPORP

 

 

 

 

 

 

 

 

 

 

 

AIN2L

 

 

 

Analog￿Input￿L-Channel

 

 

 

 

 

SPORN

AIN1L

0dB/

0dB￿to

 

 

 

 

SW1

 

+6dB￿to −70dB

 

 

 

 

+20dB

−

21dB

ADL

 

 

DAL

 

HPL

 

 

 

 

 

 

 

 

MXL

 

 

 

 

 

PG3

 

 

 

 

 

 

 

 

 

 

 

+30dB￿to

ΔΣ

 

 

ΔΣ

 

SW2

LOUT

 

HPOL/

 

D2S

 

 

 

Digital

Digital

 

 

 

 

−

 

 

ADC

Filter

Filter

DAC

 

SW3

+

+6dB￿to

LOL

 

 

 

12dB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

−70dB

 

 

 

 

 

 

 

 

ADR

 

 

DAR

SW6

MONO +

 

 

 

 

 

+30dB￿to

PG4

 

 

 

 

 

SW5

 

 

 

 

 

 

 

 

ΔΣ

Digital

Digital

ΔΣ

 

+

 

 

 

 

 

−12dB

 

 

ADC

Filter

Filter

DAC

 

 

HPR

 

 

 

 

 

 

 

 

ROUT

 

AIN1R

MUX2

MUX4

PG2

PG6

 

 

 

 

 

SW4

MXR

 

HPOR/

 

 

 

 

 

 

 

LOR

AIN2R

 

 

 

Analog￿Input￿R-Channel

 

 

 

 

+6dB￿to

 

 

 

 

 

 

 

 

AIN3R

 

 

 

 

 

 

 

 

 

 

−70dB

 

 

MCB

 

0dB/

0dB￿to

 

 

 

 

 

MONO

 

HPCOM/

 

Mic￿Bias

 

+20dB

−21dB

 

 

 

 

 

 

MONO

MICB

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COM

 

 

 

 

 

 

 

 

 

 

 

 

 

HPC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Silent￿Pop￿Noise

 

 

 

HPOL

 

 

 

 

COM

 

 

 

 

 

 

 

 

HDTI

VCOM

VCOM

 

 

 

Controller

 

 

 

HPOR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VIO

 

VDD DGND VPA

PGND

VCC

AGND

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

7

8

4

5

Figure 3-10. Modules Corresponding to Playback Function

Headphone Gain Control Options

Move the L-ch (HPL) and R-ch (HPR) sliders to adjust the gain of the analog output from the headphone amplifier.

Select the Output configuration drop-down menu to select either stereo or mono output.

∙The L-ch slider controls the Headphone/Line amp gain

∙The R-ch slider controls the Headphone/Line amp gain

∙Select the output channel to be stereo, mono (single-ended), or mono (differential)

∙The HP com drop-down list determines the HPCOM/MONO pin function.

Speaker Gain Control Options

Move the L-ch (SPL) and R-ch (SPR) sliders to adjust the gain of the analog output from the speaker amplifier.

Select the Output configuration drop-down menu to select either stereo or mono output.

∙The L-ch slider controls the speaker amp gain

∙The R-ch slider controls the speaker amp gain

∙Select the output channel to be either stereo or mono

SBAU127 –July 2007

Set-Up Guide

29

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Contents Users Guide Submit Documentation Feedback Contents 100 List of Figures Side List of Tables Submit Documentation Feedback Information About Cautions and Warnings About This Manual How to Use This ManualAdditional Documentation Related Documentation From Texas InstrumentsIf You Need Assistance FCC Warning TrademarksPin Assignments and Terminal Functions DescriptionIntroduction-PCM3793A/94A Key FeaturesIntroduction-PCM3793A/94A PCM3793A/94A Terminal Functions Pin Assignments and Terminal FunctionsDEM-DAI3793A/3794A EVM Description DEM-DAI3793A/3794A EVM System DiagramSBAU127 -July Getting Started Unpacking the EVM Electrostatic Discharge WarningEVM Configuration Default ConfigurationDaughter Card #2 DEM-TRVC/LPC MotherboardSet-Up Guide User Interface Panel Basic Operating Set-UpSoftware Control and Operation Module Function Controls Power On/Off SequenceHP COM/MONO HPC Power Up/DownPCM3793A/94A Resistor 1257dh RES40 Resistor Value Control Power Up/Down Time ms OptionsSetting Default Setting Record Ramp Up Wave Form with DefaultDigital Out Mute Control Options Gain Control for ADC Input OptionsDigital Mute ATR Options Playback Function Menu Tab PlaybackSpeaker Gain Control Options Headphone Gain Control OptionsALC Automatic Level Control Digital Attenuation ATP OptionsAuto Level Control Record Options Source Options Signal ProcessingOutput Options Tone Control OptionsClick Apply to Filter 1 or Apply to Filter 3D Effect Options15. Notch Filter Characteristic Model Zero Cross Control Options DAC Oversampling Control OptionsDe-Emphasis Filter Options High-Pass Filter Options18. Analog Path Function Menu Tab Analog PathD2S Select Options Analog Input OptionsAnalog Mixer Options Mic Boost OptionsAudio Interface Setting 2 Options Audio Interface Setting 1 OptionsPG5 Gain and PG6 Gain Options Audio InterfaceHP COM Short Detection Options HP Detection OptionsHP Short Detection, L-Ch HP Detection, R-Ch Speaker Short Detection, L-Ch Speaker Short Detection, R-ChDigital Amplifier 4 LC89052T DIR Digital Audio I/F Receiver Control Window24. Register Setting History Window Register Setting History25. Opening and Modifying a .csv File Modifying a .csv FileWrite function Register Direct AccessRead function Daughter Card #2 DIR LC89052T and DIT DIT4096 Switches and ConnectorsPower-Supply Terminals for PCM3793A Power-Supply Pins Main Power Supply and RegulatorOverview MotherboardI/F Controller MSP430, TUSB3410 Audio I/OAnalog Input and Output-Daughter Card #1 Daughter Card #1 PCM3793AAnalog Output Configuration Daughter Card #1 Audio Clock and Input Data Control Format-Daughter Card #2 Daughter Card #2 DIR LC89052T and DIT DIT4096Analog Input and Output-Daughter Card #2 Evaluation and Measurements Slave Mode Configuration With SYS-2722 Slave Mode With Audio Precision SYS-2722 Default SettingJumper Configuration for Slave Mode Default Master Mode Configuration With SYS-2722 Master Mode with Audio Precision SYS-2722Jumper Configuration for Master Mode Combined Master and Slave Modes With PSIA-2722 Combined Master and Slave Mode Configuration with SYS-2722Jumper Configuration for Combined Master and Slave Modes Measurements for Dynamic CharacteristicsΩ Headphone Output Inserted in Headphone Jack J6 Digital-to-Analog D/A PerformanceD/A Line Output Parameters Analog-to-Digital A/D Performance Speaker Output Power PerformanceA/D Line Input Parameters Stereo Speaker Output ParametersLC Low-Pass Filter Speaker Output Filter ConfigurationResult BPZ Zero Data Input Result -60dB Input Amplitude Versus Frequency Performance4.1 A/D Spectrum 11. D/A Amplitude vs Frequency 4.2 D/A SpectrumPCM3793A/94A Connection Diagram for Practical Applications16. Recommended Ferrite Bead Filter for Speaker Output Filter Consideration for Speaker OutputSchematic, PCB Layout, and Bill of Materials PCM3793A DEM-PCM3793RHB-A Connector Daughter Card #1 SchematicsPCM3793A DEM-PCM3793RHB-A Daughter Card #1 PCM3793A DEM-PCM3793RHB-A Board Layout-Silkscreen Side Printed Circuit Board LayoutPCM3793A DEM-PCM3793RHB-A Board Layout-Component Side PCM3793A DEM-PCM3793RHB-A Board Layout-Inner Layer PCM3793A DEM-PCM3793RHB-A Board Layout-Inner Layer PCM3793A DEM-PCM3793RHB-A Board Layout-Solder Side Bill of Materials Component ListSubmit Documentation Feedback Appendix a Table A-1. .csv Files Reference .csv FilesFigure A-1. Line Output and Headphone Output Related Signal Flow DiagramsFigure A-2. Headphone Output with Sound Effect Figure A-3. Cap-Less Headphone Output Figure A-4. Headphone Output with Line Input AIN2L/AIN2R 0dB AIN3L MUX1 AIN2L AIN1L D2S AIN1R MUX2 AIN3R AIN2R 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 +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 +20dB 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 Interfacing to DSPs Figure A-24. Slave Mode OperationPackage Information Table A-2. Recommended Power-On Sequence for PCM3793ARegister Control with DSP Interface FCC Warning Evaluation BOARD/KIT Important NoticeImportant Notice

DEM-DAI3793A specifications

The Texas Instruments DEM-DAI3793A is a versatile digital-to-analog converter (DAC) evaluation module designed for assessing the performance and capabilities of TI's DACs in various applications. This module features the high-performance DAC3793, which is widely recognized for its precision and flexibility, making it an ideal choice for audio, industrial automation, and communication systems.

One of the standout features of the DEM-DAI3793A is its ability to support a 16-bit resolution. This high resolution enables the module to provide fine granularity in signal representation, ensuring that even the most subtle changes in the input signal are accurately reflected in the output. The DAC3793 also boasts a high sampling rate, which is crucial for applications that require rapid signal processing and real-time data conversion.

The module incorporates advanced technologies such as dynamic element matching and integrated circuitry to minimize distortion and noise. These technologies are crucial for achieving high-fidelity audio playback and improving overall system performance. Additionally, the DEM-DAI3793A is designed to minimize power consumption while maintaining exceptional performance levels, making it suitable for battery-operated devices and energy-conscious applications.

Another significant characteristic of the DEM-DAI3793A is its ease of integration with various development environments. The evaluation module supports both hardware and software interfacing, allowing engineers to quickly prototype and test their designs. It comes equipped with a USB interface for seamless connectivity with computers, along with supporting software tools that facilitate the configuration and testing of the DAC's functionalities.

The DEM-DAI3793A is also designed with a robust set of output options, including differential and single-ended outputs. This flexibility allows for compatibility with a wide range of amplification and filtering circuits. Furthermore, the evaluation module is equipped with convenient power supply options, enabling it to operate in various settings without the need for extensive modifications.

In conclusion, the Texas Instruments DEM-DAI3793A is an exceptional evaluation module that showcases the capabilities of the DAC3793. With its high resolution, advanced technologies, ease of integration, and flexible output options, it serves as an indispensable tool for engineers and developers working on high-performance audio and data processing applications.
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