Texas Instruments TPA102 MSOP User Manual

TPA102 MSOP
Audio Power Amplifier
Evaluation Module

User’s Guide

May 2001 Mixed-Signal Products

SLOU022A

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stated by TI for

How to Use This Manual

This document contains the following chapters:

-

Chapter 1—Introduction

-

Chapter 2—Quick Start

-

Chapter 3—Details

Related Documentation From Texas Instruments

-

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

-

TPA102 150-mW Stereo Audio Power Amplifier (literature number
SLOS213) This is the data sheet for the TP A102 audio amplifier integrated
circuit.

Preface

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

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

.

Read This First

iii

Running Title—Attribute Reference

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.

iv

Running Title—Attribute Reference

Contents

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

1.1 Features 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Description 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 TPA102 MSOP EVM Specifications 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

2.1 Precautions 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 Quick Start List for Platform 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 Quick Start List for Stand-Alone 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

3.1 Precautions 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 The TPA102 MSOP Audio Amplifier Evaluation Module 3-3. . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.1 TPA102 Audio Amplifier IC 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.2 Module Gain 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.3 Shutdown 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 Using the TPA102 MSOP EVM With the Plug-N-Play Evaluation Platform 3-6. . . . . . . . . .

3.3.1 Installing and Removing EVM Boards 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.2 Signal Routing 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.3 Shutdown 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.4 Power Requirements 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.5 Inputs and Outputs 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4 Using the TPA102 MSOP EVM Stand-Alone 3-1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.1 TPA102 MSOP EVM Connected as a Stereo Headphone Amplifier 3-11. . . . . . .

3.5 TPA102 MSOP Audio Power Amplifier Evaluation Module Parts List 3-12. . . . . . . . . . . . . .

Chapter Title—Attribute Reference

v

Running Title—Attribute Reference

Figures

1–1 The TI TPA102 MSOP Audio Amplifier Evaluation Module 1-4. . . . . . . . . . . . . . . . . . . . . . . . . .

2–1 Quick Start Platform Map 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2 Quick Start Module Map 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–1 The TI Plug-N-Play Audio Amplifier Evaluation Platform 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–2 TPA102 MSOP EVM 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–3 TPA102 MSOP EVM Schematic Diagram 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–4 TPA102 Audio Amplifier IC 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–5 Platform Signal Routing and Outputs 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–6 Mute Polarity Control 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–7 Typical Headphone Plug 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–8 TPA102 MSOP EVM Connected as a Stereo Headphone Amplifier 3-11. . . . . . . . . . . . . . . . .

Tables

2–1 Typical TI Plug-N-Play Platform Jumper and Switch Settings for the

2–2 Platform Jumper and Switch Settings for the TPA102 MSOP EVM 2-3. . . . . . . . . . . . . . . . . . .

3–1 TPA102 MSOP EVM Parts List 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

TPA102 MSOP EVM 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

vi

Chapter 1

Introduction

This chapter provides an overview of the Texas Instruments (TI) TPA102
MSOP audio amplifier evaluation module (SLOP125). It includes a list of EVM
features, a brief illustrated description of the module, and a list of EVM
specifications.

Topic Page

1.1 Features 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Description 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 TP A102 MSOP EVM Specifications 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction

1-1

Features

1.1 Features

The TI TPA102 MSOP audio amplifier evaluation module and the TI
plug-n-play audio amplifier evaluation platform include the following features:

-

TPA102 MSOP stereo audio power amplifier evaluation module

J

Dual channel, single-ended operation

J

150 mW output power into 8 Ω at 5 V

J

2.5-V to 5.5-V operation

J

Very low distortion — THD+N is less than 0.01% at 1 kHz and less than

0.03% from 20 Hz to 20 kHz into 10-kΩ loads, less than 0.02% at 1 kHz
and less than 0.4% from 20 Hz to 20 kHz into 32-Ω loads, and less than

0.05% at 1 kHz and less than 0.8% from 20 Hz to 20 kHz into 8-Ω loads

J

Extremely low current consumption in shutdown mode

J

Internal thermal and short-circuit protection

J

Internal pop reduction circuitry

-

Quick and easy configuration with the TI plug-n-play audio amplifier
evaluation platform

J

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

J

Platform provides flexible power options

J

Jumpers on the platform select power and module control options

J

Switches on the platform route signals

J

Platform provides quick and easy audio input and output connections

-

Platform power options

J

Onboard 9-V battery

J

External 5-V – 15-V (VCC) supply inputs

J

External regulated VDD supply input

J

Socket for onboard 5-V VDD voltage regulator EVM

J

Onboard overvoltage and reverse polarity power protection

-

Platform audio input and output connections

J

Left and right RCA phono jack inputs

J

Miniature stereo phone jack input

J

Left and right RCA phono jack outputs

1-2

J

Left and right compression speaker terminal outputs

J

Miniature stereo headphone jack output

Introduction