Texas Instruments Audio Power Aplifier Evaluation Module TPA 311 User Manual

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TPA311

Audio Power Amplifier

Evaluation Module

User's Guide

1998

Mixed-SignalProducts

TPA311 Audio Power Amplifier

Evaluation Module

User's Guide

SLOU013

February 1998

Printed on Recycled Paper

IMPORTANT NOTICE

Texas Instruments (TI) reserves the right to make changes to its products or to discontinue any semiconductor product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current.

TI warrants performance of its semiconductor products and related software to the specifications applicable at the time of sale in accordance with TI's standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements.

Certain applications using semiconductor products may involve potential risks of death, personal injury, or severe property or environmental damage (ªCritical Applicationsº).

TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORTAPPLICATIONS, DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS.

Inclusion of TI products in such applications is understood to be fully at the risk of the customer. Use of TI products in such applications requires the written approval of an appropriate TI officer. Questions concerning potential risk applications should be directed to TI through a local SC sales office.

In order to minimize risks associated with the customer's applications, adequate design and operating safeguards should be provided by the customer to minimize inherent or procedural hazards.

TI assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or services described herein. Nor does TI warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used.

Copyright 1998, Texas Instruments Incorporated

Preface

Related Documentation From Texas Instruments

JTI Plug-N-PlayAudio Amplifier Evaluation Platform(literature number SLOU011) provides detailed information on the evaluation platform and its use with TI audio evaluation modules.

JTPA311 350-mWLOW-VOLTAGEAUDIO POWER AMPLIFIER

(literature number SLOS207) This is the data sheet for the TPA311 audio amplifier integrated circuit.

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

TI is a trademark of Texas Instruments Incorporated.

Chapter TitleÐAttribute Reference

iii

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iv

Running TitleÐAttribute Reference

Contents

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.1 Feature Highlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1.3 TPA311 EVM Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

2 Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22.2 Quick Start List for Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-32.3 Quick Start List forStand-Alone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

3 Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

3.1

Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2

3.2

The TPA311 Audio Amplifier Evaluation Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3

 

3.2.1 TPA311 Audio Amplifier IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4

 

3.2.2

BTL Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4

 

3.2.3

Single-EndedOperation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5

 

3.2.4

Module Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5

 

3.2.5

Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5

3.3

Using The TPA311 EVM With The Plug-N-PlayEvaluation Platform . . . . . . . . . . . . . . .

3-6

 

3.3.1 Installing and Removing EVM Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6

 

3.3.2

Signal Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7

 

3.3.3

Mute/Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-8

 

3.3.4

Power Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-10

 

3.3.5

Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-11

3.4

Using The TPA311 EVM Stand-ALone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-12

 

3.4.1 TPA311 EVM Connected for BTL Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-12

 

3.4.2 TPA311 EVM Connected for Single-EndedOutput . . . . . . . . . . . . . . . . . . . . . .

3-13

3.5

TPA311 Audio Amplifier Evaluation Module Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-14

Chapter TitleÐAttribute Reference

v

Running TitleÐAttribute Reference

Figures

1±1 The TI TPA311 Audio Amplifier Evaluation Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42±1 Quick Start Platform Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-22±2 Quick Start Module Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-43±1 The TIPlug-N-PlayAudio Amplifier Evaluation Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23±2 TPA311 EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-33±3 TPA311 EVM Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-33±4 TPA311 Audio Amplifier IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-43±5 Platform Signal Routing and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-73±6 Mute/Mode and Polarity Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-83±7 Typical Headphone Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-113±8 TPA311 EVM Connected for Stereo BTL Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-123±9 TPA311 EVM Connected for StereoSingle-EndedOutput . . . . . . . . . . . . . . . . . . . . . . . . .3-13

Tables

2±1

Typical TI Plug-N-PlayPlatform Jumper and Switch Settings for the TPA311 . . . . . . . . . .

2-1

2±2

Platform Jumper and Switch Settings for the TPA311 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3

3±1

TPA311 EVM Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-14

vi

Chapter 1

Introduction

This chapter provides an overview of the Texas Instruments (TI ) TPA311 Audio Amplifier Evaluation Module (SLOP116). It includes a list of EVM features, a brief description of the module illustrated with a pictorial diagram, and a list of EVM specifications.

Topic

 

Page

 

 

 

1.1

Feature Highlights

1±3

1.2

Description

1±4

1.3

TPA311 EVM Specifications

1±4

 

 

 

Introduction 1-1

1-2

Introduction

Feature Highlights

1.1 Feature Highlights

The TI TPA311 Audio Amplifier Evaluation Module and the TI Plug-N-PlayAudio Amplifier Evaluation Platform include the following features:

-TPA311 Low-VoltageAudio Power Amplifier Evaluation Module

J Single channel,bridge-tiedload (BTL) orsingle-endedoperation

J 3.3-Vand5-Voperation

J 350 mW output power into 8 Ω at 5 V, BTL

J Ultra-lowcurrent consumption in shutdown/mute mode

J Internal thermal andshort-circuitprotection

J Module gain adjustable between approximately 2 and 22

-Quick and Easy Configuration with The TI Plug-N-PlayAudio Amplifier

Evaluation Platform

JEvaluation module is designed to simply plug into the platform, automatically making all signal, control, and power connections

JPlatform provides flexible power options

JJumpers on the platform select power and module control options

JSwitches on the platform route signals

JPlatform provides quick and easy audio input and output connections

-Platform Power Options

JOn-board9-Vbattery

JExternal 5-V±15-VDC VCC supply inputs

JExternal regulated VDD supply input

JSocket for on-board5 V/3.3 V VDD voltage regulator EVM

JOn-boardovervoltage and reverse polarity power protection

-Platform Audio Input and Output Connections

JLeft and right RCA phono jack inputs

JMiniature stereo phone jack input

JLeft and right RCA phono jack outputs

JLeft and right compression speaker terminal outputs

JMiniature stereo headphone jack output

Introduction 1-3