Texas Instruments Evaluation Module PCM1795 User Manual
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DEM-DSD1796/PCM1795/PCM1796/PCM1798

DSD1796/PCM1795/PCM1796/PCM1798 Evaluation Module

User's Guide

Literature Number: SLEU057A

September 2004–RevisedMay 2009

2

SLEU057A–September2004–RevisedMay 2009

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Contents

Preface ...............................................................................................................................

 

5

1

Description ................................................................................................................

7

1.1

Functional Block Diagram ..................................................................................................

8

1.2

EVM Features ................................................................................................................

8

1.3

System Requirements.......................................................................................................

9

1.4

Electrostatic Discharge Warning...........................................................................................

9

1.5

Function Control for DAI Interface Format ...............................................................................

9

1.6

Reset Operation..............................................................................................................

9

1.7

SW006 Operation Control for DAC ......................................................................................

10

1.8

Jumper Connection ........................................................................................................

10

1.9

Demonstration Software...................................................................................................

10

2

Schematics, PCB Layout, and Bill of Materials .............................................................

11

2.1

DEM-DAI/ASDAC Printed Circuit Board Layout........................................................................

12

2.2

DEM-AS/CDAC Printed Circuit Board Layout ..........................................................................

15

2.3

DEM-DAI/ASDAC Schematics............................................................................................

17

2.4

DEM-AS/CDAC Schematics ..............................................................................................

19

2.5

Component Lists ...........................................................................................................

20

 

2.5.1

DEM-AS/CDAC_96/98 Parts List................................................................................

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2.5.2

DEM-DAI/ASDAC_96/98 Parts List .............................................................................

20

Revision History.................................................................................................................

22

Important Notices...............................................................................................................

23

SLEU057A–September2004–RevisedMay 2009

Contents

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List of Figures

 

1-1

DEM-DSD1796/PCM1795/PCM1796/PCM1798 Block Diagram ......................................................

8

2-1

DEM-DAI/ASDAC Silkscreen .............................................................................................

12

2-2

DEM-DAI/ASDAC (Top View) ............................................................................................

13

2-3

DEM-DAI/ASDAC (Bottom View).........................................................................................

14

2-4

DEM-AS/CDAC Silkscreen................................................................................................

15

2-5

DEM-AS/CDAC (Top View) ...............................................................................................

15

2-6

DEM-AS/CDAC (Bottom View) ...........................................................................................

16

2-7

DEM-DAI/ASDACAnalog Section (Sockets for Daughterboard andLow-PassFilter)............................

17

2-8

DEM-DAI/ASDAC Connector and Regulator ...........................................................................

17

2-9

DEM-DAI/ASDAC Digital Section (Digital Audio Interface) ...........................................................

18

2-10

DEM-AS/CDAC .............................................................................................................

19

 

List of Tables

 

1-1

Digital Audio Receiver Configuration......................................................................................

9

1-2

SW006 Options.............................................................................................................

10

2-1

Bill of Materials .............................................................................................................

20

2-2

Bill of Materials .............................................................................................................

20

4

List of Figures

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Preface

SLEU057A–September2004–RevisedMay 2009

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About This Manual

This document provides the information needed to set up and operate the DEM-DSD1796/PCM1795/PCM1796/PCM1798EVM evaluation module, a test platform for the24-bit,192-kHz,sampling stereoDSD1796,PCM1795,PCM1796, andPCM1798 audiodigital-to-analogconverters (DACs). For a more detailed description of these devices, refer to the specific device product data sheet available from the Texas Instruments web site athttp://www.ti.com.

How to Use This Manual

Throughout this document, the abbreviation EVM and the termevaluation module are synonymous with theDEM-DSD1796/PCM1795/PCM1796/PCM1798EVM. Unless specifically noted, the information presented in this manual applies to the DSD1796, PCM1795, PCM1796, and PCM1798 audio stereo DACs.

Chapter 1 describes the hardware setup guide for the EVM, including the necessary information required to configure the EVM switches and jumpers for product evaluation. This chapter also explains how to use the software provided with theDEM-DSD1796/PCM1795/PCM1796/PCM1798EVM for controlling the DAC.

Chapter 2 includes the EVM electrical schematics, printed circuit board (PCB) layouts, and the bills of material for both theDEM-DSD1796/PCM1795/PCM1796/PCM1798,theDEM-AS/CDAC,and theDEM-DAI/ASDAC.

Information About Cautions and Warnings

This document contains caution statements.

CAUTION

This is an example of a caution statement. A caution statement describes a situation that could potentially damage your software or equipment.

The information in a caution or a warning is provided for your protection. Please read each caution and warning carefully.

If You Need Assistance

If you have questions regarding either the use of this evaluation module or the information contained in the accompanying documentation, please contact the Texas Instruments Product Information Center at (972) 644–5580or visit the TI web site atwww.ti.com.

FCC Warning

This equipment is intended for use in a laboratory test environment only. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules, which are designed to provide reasonable protection against radio frequency interference. Operation of this equipment in other environments may cause interference with radio communications, in which case the user at his own expense is required to take whatever measures may be required to correct this interference.

Microsoft, Windows are registered trademarks of Microsoft Corporation.

I2S is a trademark of NXP Semiconductors.

TOSLINK is a trademark of Toshiba Corporation.

All other trademarks are the property of their respective owners.

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Trademarks

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Trademarks

All trademarks are the property of their respective owners.

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