Texas Instruments SLEU056 User Manual

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TAS5010−5112F2EVM

Evaluation Module for the TAS5010 Digital Audio PWM Processor and the TAS5112ADFD Digital Audio PWM Power Output Stage

User’s Guide

June 2004

DAV Digital Audio/Speaker

SLEU056

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.

TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed.

TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards.

TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-partyproducts or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI.

Reproduction of information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation.

Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.

Following are URLs where you can obtain information on other Texas Instruments products and application solutions:

Products

 

Applications

 

Amplifiers

amplifier.ti.com

Audio

www.ti.com/audio

Data Converters

dataconverter.ti.com

Automotive

www.ti.com/automotive

DSP

dsp.ti.com

Broadband

www.ti.com/broadband

Interface

interface.ti.com

Digital Control

www.ti.com/digitalcontrol

Logic

logic.ti.com

Military

www.ti.com/military

Power Mgmt

power.ti.com

Optical Networking

www.ti.com/opticalnetwork

Microcontrollers

microcontroller.ti.com

Security

www.ti.com/security

 

 

Telephony

www.ti.com/telephony

 

 

Video & Imaging

www.ti.com/video

 

 

Wireless

www.ti.com/wireless

Mailing Address:

Texas Instruments

 

 

 

Post Office Box 655303 Dallas, Texas 75265

 

Copyright 2004, Texas Instruments Incorporated

EVM IMPORTANT NOTICE

Texas Instruments (TI) provides the enclosed product(s) under the following conditions:

This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of requireddesign-,marketing-,and/ormanufacturing-relatedprotective considerations, including product safety measures typically found in the end product incorporating the goods. As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may not meet the technical requirements of the directive.

Should this evaluation kit not meet the specifications indicated in the EVM User’s Guide, the kit may be returned within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.

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. Please be aware that the products received may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). Due to the open construction of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic discharge.

EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not exclusive.

TI assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or services described herein.

Please read the EVM User’s Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM User’s Guide prior to handling the product. This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact the TI application engineer.

Persons handling the product must have electronics training and observe good laboratory practice standards.

No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or combination in which such TI products or services might be or are used.

Mailing Address:

Texas Instruments

Post Office Box 655303

Dallas, Texas 75265

Copyright 2004, Texas Instruments Incorporated

EVM WARNINGS AND RESTRICTIONS

It is important to operate this EVM within the input voltage range of 0 V to 29.5 V for the output stage and 15 V to 20 V for the system supply.

Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions concerning the input range, please contact a TI field representative prior to connecting the input power.

Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM. Please consult the EVM User’s Guide prior to connecting any load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative.

During normal operation, some circuit components may have case temperatures greater than 60°C. The EVM is designed to operate properly with certain components above 60°C as long as the input and output ranges are maintained. These components include but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types of devices can be identified using the EVM schematic located in the EVM User’s Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch.

Mailing Address:

Texas Instruments

Post Office Box 655303

Dallas, Texas 75265

Copyright 2004, Texas Instruments Incorporated

Information About Cautions and Warnings

Preface

Read This First

About This Manual

This manual describes the operation of the TAS5010−5112F2EVM evaluation module from Texas Instruments.

How to Use This Manual

This document contains the following chapters:

-Chapter 1 – Overview

-Chapter 2 – Detailed Description of the EVM Board

-Chapter 3 – EVM Board Operation

-Chapter 4 – Hints for Measurements of Performance

Information About Cautions and Warnings

This book may contain cautions and warnings.

This is an example of a caution statement.

A caution statement describes a situation that could potentially damage your software or equipment.

This is an example of a warning statement.

A warning statement describes a situation that could potentially cause harm to you.

iii

Trademarks

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

Related Documentation From Texas Instruments

The following table contains a list of data manuals that have detailed descriptions of the integrated circuits used in the design of the TAS5010−5112F2EVM. The data manuals can be obtained at the URL http://www.ti.com.

Part Number

Literature Number

 

 

TAS5010PFB

SLAS328

 

 

TAS5112ADFD

SLES094

 

 

TAS3002PFB

SLAS307

 

 

DIR1703E

SLES007

 

 

LMV331IDBVR

SLCS136

 

 

TPS3705−33DGN

SLVS184

 

 

SN74LVC2GU04DBVR

SCES197

 

 

SN74LVC2G14DBVR

SCES200

 

 

SN74LVC2G08DCTR

SCES198

 

 

SN74LVC1G02DBVR

SCES213

 

 

SN74LVC1G32DBVR

SCES219

 

 

SN74LV21APWR

SCES340

 

 

Additional TAS5010−5112F2EVM Documentation

-DCT Software and User’s Guide for Controlling the TAS3002

-TAS5010−5112F2EVM Application Report (SLEA036)

-Data Manuals

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 will be required to take whatever measures may be required to correct this interference.

Trademarks

Equibitand PurePath Digitalare trademarks of Texas Instruments.

iv

Contents

Contents

1

Introduction .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1

 

1.1

TAS5010−5112F2EVM Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2

2 Detailed Description of the EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1

 

2.1

Board Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2

 

2.2

Description of Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3

 

 

2.2.1

Double-SpeedControl (JMP120) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3

 

 

2.2.2

Enable/Disable S/PDIF−MUTE (JMP130) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3

 

 

2.2.3 Bypassing Equalizer Functions in the Digital Audio Processor (JMP360) . . . .

2-3

 

2.3

Default Jumper Positioins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4

 

2.4

Description of Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4

 

 

2.4.1 S/PDIF Digital Audio Coaxial/RCA Input (J100) . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4

 

 

2.4.2

S/PDIF Optical (J101) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4

 

 

2.4.3 Analog input (J160) and Analog Output (J170) . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4

 

 

2.4.4 PC and I2C Interface (J300) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5

 

 

2.4.5 Loudspeaker Connectors (J540, J541, J580, and J581) . . . . . . . . . . . . . . . . . .

2-6

 

 

2.4.6

Power Supply Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-6

 

2.5

Description of Switches and Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7

 

 

2.5.1 S/PDIF Input Selector Switch (S100) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7

 

 

2.5.2 Bypass Digital Audio Processor Switch (S320) . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7

 

 

2.5.3 Reset Board Button (S620) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7

 

 

2.5.4

Mute Button (S240) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7

 

 

2.5.5 Volume Control (S340 and S341) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7

 

2.6

Description of Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-8

 

 

2.6.1

Power LED (LED223) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-8

 

 

2.6.2 No S/PDIF Input LED (LED222) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-8

 

 

2.6.3 Temperature Warning LED (LED221) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-8

 

 

2.6.4 Protection Mode LED (LED220) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-8

3

EVM Board Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1

 

3.1

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2

 

 

3.1.1 Power the EVM by One Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2

 

 

3.1.2 Power the EVM With Two Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2

 

3.2

Setup the TAS5010−5112F2EVM With the S/PDIF Input . . . . . . . . . . . . . . . . . . . . . . . . .

3-3

 

 

3.2.1

Start-upSequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4

 

3.3

Setup the TAS5010−5112F2EVM With the Analog Line Input . . . . . . . . . . . . . . . . . . . . .

3-4

 

3.4

Interfacing the Analog Line Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4

 

3.5

Controlling the DAP With PC Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4

4 Hints for Measurement of Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4-1

v

Contents

Figures

1−1 Simplified TAS5010−5112F2EVM Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22−1 Board Outline With Connectors, Switches, Jumpers, and Indicators . . . . . . . . . . . . . . . . . .2-22−2 Physical Structure for the TAS5010−5112F2EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-22−3 Default Jumper Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-42−4 Pin Numbers at the Line Input/Output Connector (Top View) . . . . . . . . . . . . . . . . . . . . . . . .2-42−5 Pin Numbers at the Parallel Port/I2C Interface/I2C (J300) . . . . . . . . . . . . . . . . . . . . . . . . . . .2-52−6 Pin Numbers at PSU Connector (Top View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-63−1 RecommendedPower-UpandPower-DownSequence . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23−2 EVM Board Connected to S/PDIF Sources and Personal Computer . . . . . . . . . . . . . . . . .3-3

Tables

2−1

Description of J160 and J170 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5

2−2

Description of J300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5

2−3

Description of Loudspeaker Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-6

2−4

Description of PSU Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-6

3−1

Maximum Supply Voltage (Single Supply) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2

3−2

Maximum H-bridgeVoltage vs Load Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2

vi

Chapter 1

Introduction

The TAS5010−5112F2EVM PurePath Digitalt customer evaluation module demonstrates two integrated circuits, the TAS5010 and TAS5112ADFD from Texas Instruments. The TAS5010 is a high performance 24-bitstereo digital modulator based on Equibitt technology. This IC converts input PCM serial digital audio data to a pulse width modulated (PWM) audio data stream. The TAS5010 PWM modulator accepts I2S data with a sample rate up to 192 kHz. The TAS5010 is designed for implementation together with the TAS5112ADFD digital output stage for driving two loudspeakers in a stereo application.

The TAS5010 is pin compatible with the TAS5001 PCM−PWM modulator. The maximum sample rate for the TAS5001 is 96 kHz.

Together, the TAS5010 and one TAS5112ADFD provide the complete PurePath Digitalt conversion of a 3.3-Vdigital audio input stream up to 2x50 W into6-Ωloudspeakers. The chipset is ideal for applications requiring excellent audio quality, minimum size and weight, and high power efficiency. The chipset can be used in a range of products such asmicro-componentssystems, home theater in a box, DVD receivers, or TV sets.

The TAS5010−5112F2EVM is a complete true digital amplifier including an S/DIF receiver, I2S audio interface, volume control, interface to personal computer through the parallel port, and required control logic. The amplifier reference design is surrounded by a white line on the PCB.

Topic

Page

1.1TAS5010−5112F2EVM Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Introduction 1-1

TAS5010−5112F2EVM Features

1.1TAS5010−5112F2EVM Features

-PurePath Digitalreference design(double-sidedplated-throughPCB layout)

-S/PDIF receiver with coaxial and optical input (sampling rate = 32 kHz – 192 kHz)

-I2S audio interface (sampling rate: 32 kHz – 96 kHz)

-On-boardvolume control

-Auto-mutefunction

-Self-containedshort circuit and temperature protection system

-Digital audio processor (DAP), which include 24-bitvolume control, digital gain, bass and treble control, parametric equalization, dedicated speaker equalization, loudness control, and adjustable dynamic range compression/expansion.

-DAP control through PC software (DCT software from Texas Instruments)

-Default DAP settings is downloaded to an EEPROM with the DCT software

-Analog line input (use internal analog-to-digitalconverter in DAP)

-Analog line output (use internal digital-to-analogconverter in DAP)

Figure 1−1. Simplified TAS5010−5112F2EVM Block Diagram

 

PARRALLEL

VOLUME

 

 

PC SOFTWARE

PORT

 

 

CONTROL

 

 

 

INTERFACE

 

 

 

 

 

 

 

I2C BUS

 

 

 

ANALOG INPUT

 

TAS3002

 

 

ANALOG OUTPUT

 

DIGITAL AUDIO

 

 

 

PROCESSOR

 

 

OPTICAL INPUT

DIR1703

I2S BUS

TAS5010

TAS5112ADFD

 

DIGITAL AUDIO

32 kHz − 96 kHz

S/PDIF

DIGITAL AUDIO

 

PWM POWER

COAXIAL INPUT

RECEIVER

 

PWM PROCESSOR

 

OUTPUT STAGE

 

 

 

I2S INPUT

I2S INTERFACE

I2S BUS

 

 

 

 

 

32 kHz − 192 kHz

 

 

 

 

The DIR1703 IC from Texas Instruments/Burr-Brownis used as S/PDIF receiver and system clock generator. This product is a digital audio interface receiver (DIR) that receives and decodes audio data up to96-kHzsampling rate. DIR1703 is running in a configuration where it automatically switches between PLL mode and crystal mode. When the DIR1703 is connected to an active digital source, it is running inPLL-mode.The system clock (SCKO) frequency depends on the incoming sampling rate (fs): SCKO = 256 x fs. When no digital source is represented, the DIR1703 switches to crystal mode. The system clock frequency in crystal mode depends on the external crystal connected to the DIR1703 receiver. On the TAS5010−5112F2EVM board, thecrystal-modesystem clock is 12.288 MHz.

Crystal-modeoperation is used to generate a fixed clock when the TAS5010−5112F2EVM board is connected to an analog source. The externalanti-aliasingfilter for the A/D converter is optimized to48-kHzsampling rates.

1-2