Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsDev KitsPCB design board

User's Guide

SLEU117–March 2012

PCM2903EVM-U Evaluation Module

This User's Guide contains information on the setup, operation, and constructon of the PCM2903EVM-U,

and evaluation module (EVM) for the digital-to-analog converter (DAC) PCM2903.

Contents

1 Description ................................................................................................................... 1

1.1 Related Documentation From Texas Instruments ............................................................. 2

1.2 Block Diagram ...................................................................................................... 2

1.3 Connectors and Jumpers ......................................................................................... 2

1.4 Switch Settings ..................................................................................................... 2

1.5 LED Monitor ........................................................................................................ 2

2 Schematic and Printed-Circuit Board ..................................................................................... 3

2.1 PCM2903EVM-U Printed-Circuit Board ......................................................................... 3

2.2 PCM2903EVM Schematic ........................................................................................ 5

List of Figures

1 PCM2903EVM Block Diagram ............................................................................................ 2

2 PCM2903EVM Silkscreen ................................................................................................. 3

3 PCM2903EVM Top View................................................................................................... 3

4 PCM2903EVM Bottom View............................................................................................... 4

5 PCM2903EVM Schematic ................................................................................................. 5

List of Tables

1 Description

The PCM2903EVM-U is an evaluation board for Texas Instruments' newly developed USB interface

codec, PCM2903. The PCM2903EVM-U evaluation module (EVM) includes a PCM2903. It is a self-

powered USB codec without an S/PDIF interface.

A USB connector is mounted on the PCM2903EVM-U. Connecting a USB interface to this USB connector

enables the evaluation of codec performance.

The PCM2903EVM-U requires a 5-V power supply for the codec and S/PDIF sections and a 5-V power

supply for the analog input/output amplifier section.

Stereo audio output and input are available on two 3.5-mm jacks.

The PCM2903EVM-U supports the following USB features:

• Fully compliant with the USB 1.1 specification

• Full-speed transceivers

• Partially programmable descriptors

• USB adaptive mode for playback

• USB asynchronous mode for record

• Self-powered

SLEU117–March 2012 PCM2903EVM-U Evaluation Module

Submit Documentation Feedback

Summary of content (14 pages)

PAGE 1
User's Guide SLEU117 – March 2012 PCM2903EVM-U Evaluation Module This User's Guide contains information on the setup, operation, and constructon of the PCM2903EVM-U, and evaluation module (EVM) for the digital-to-analog converter (DAC) PCM2903. 1 2 Contents Description ................................................................................................................... 1.1 Related Documentation From Texas Instruments ............................................................. 1.
PAGE 2
Description 1.1 www.ti.com Related Documentation From Texas Instruments 1. PCM2903C, Stereo Audio Codec with USB Interface, Single-Ended Analog In/Out and S/PDIF data sheet (SBFS038) 2. Key Differences Between the PCM270x and PCM270xC application report (SBFA019) 1.2 Block Diagram CN001 5V S/PDIF IN GND TORX CN002 S/PDIF OUT 3.
PAGE 3
Schematic and Printed-Circuit Board www.ti.com 2 Schematic and Printed-Circuit Board This section presents the PCM2903EVM-U printed-circuit board and schematic.
PAGE 4
Schematic and Printed-Circuit Board www.ti.com Figure 4.
PAGE 5
Copyright © 2012, Texas Instruments Incorporated SO2 R006 3 1 GND INPUT 1 4 1 2 2 3 CN003 GND VCC U003 OUTPUT GND VCC R001 1.5Kohms GND C010 0.1uF C009 10uF GND C008 0.1uF C007 10uF SO1 3 2 + + GND 0.1uF C011 4 SO3 R003 R002 5 R119 1.5Kohms R118 1.5Kohms U004 1 2 3 GND SO4 CN002 CN002 CN002 3 1 2 3 1 GND + 3 1 12 10 8 6 4 2 10uF C012 SW002 2 CN002 CN002 11 SW001 CN002 CN002 9 GND 1.
PAGE 6
EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions: The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods.
PAGE 7
FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
PAGE 8
【Important Notice for Users of this Product in Japan】】 This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product: 1. 2. 3. Use this product in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.
PAGE 9
EVALUATION BOARD/KIT/MODULE (EVM) WARNINGS, RESTRICTIONS AND DISCLAIMERS For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished electrical equipment and not intended for consumer use.
PAGE 10
EVALUATION BOARD/KIT/MODULE (EVM) ADDITIONAL TERMS Texas Instruments (TI) provides the enclosed Evaluation Board/Kit/Module (EVM) under the following conditions: The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all claims arising from the handling or use of the goods.
PAGE 11
FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
PAGE 12
【Important Notice for Users of this Product in Japan】】 This development kit is NOT certified as Confirming to Technical Regulations of Radio Law of Japan If you use this product in Japan, you are required by Radio Law of Japan to follow the instructions below with respect to this product: 1. 2. 3. Use this product in a shielded room or any other test facility as defined in the notification #173 issued by Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.
PAGE 13
EVALUATION BOARD/KIT/MODULE (EVM) WARNINGS, RESTRICTIONS AND DISCLAIMERS For Feasibility Evaluation Only, in Laboratory/Development Environments. Unless otherwise indicated, this EVM is not a finished electrical equipment and not intended for consumer use.
PAGE 14
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.