Texas Instruments MIXED SIGNAL PRODUCTS TPA0103 User Manual

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TPA0103

Audio Power Amplifier

Evaluation Module

User's Guide

August 1998

Mixed-SignalProducts

SLOU015

IMPORTANT NOTICE

Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability.

TI warrants performance of its semiconductor products 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, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORTDEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK.

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

TI assumes no liability for applications assistance or customer product design. TI does not 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. TI's publication of information regarding any third party's products or services does not constitute TI's approval, warranty or endorsement thereof.

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.

JTPA0103 3-CHANNELAUDIO POWER AMPLIFIER STEREOSINGLE-ENDED500-mWAND MONO BTL1.75-W(literature number SLOS167) This is the data sheet for the TPA0103 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

iv

Running TitleÐAttribute Reference

Contents

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

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

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

1.3 TPA0103 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 TPA0103 Audio Amplifier Evaluation Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3

 

3.2.1 TPA0103 Audio Amplifier IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4

 

3.2.2

Output Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5

 

3.2.3

Inputs and Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6

3.3

Using The TPA0103 EVM With The Plug-N-PlayEvaluation Platform . . . . . . . . . . . . . .

3-7

 

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

3-7

 

3.3.2

TPA0103Module Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-8

 

3.3.3

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

3-11

 

3.3.4

Mode Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-12

 

3.3.5

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

3-14

 

3.3.6

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

3-15

3.4

Using The TPA0103 EVM Stand-ALone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-16

 

3.4.1 TPA0103 EVM Connected for Center Channel BTL Output . . . . . . . . . . . . . . .

3-16

 

3.4.2 TPA0103 EVM Connected for Stereo Headphones Output . . . . . . . . . . . . . . .

3-17

3.5

TPA0103 Audio Amplifier Evaluation Module Parts List . . . . . . . . . . . . . . . . . . . . . . . . .

3-18

Chapter TitleÐAttribute Reference

v

Running TitleÐAttribute Reference

Figures

1±1

The TI TPA0103 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-PlayAudio Amplifier Evaluation Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2

3±2

TPA0103 EVM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3

3±3

TPA0103 EVM Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4

3±4

TPA0103 Audio Amplifier IC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5

3±5

TPA0103 EVM Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-8

3±6

Platform Signal Routing and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-11

3±7

Mute/Mode and Polarity Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-12

3±8

Typical Headphone Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-15

3±9

TPA0103 EVM Connected for Center Channel BTL Output . . . . . . . . . . . . . . . . . . . . . . . .

3-16

3±10

TPA0103 EVM Connected for Stereo Headphones Output . . . . . . . . . . . . . . . . . . . . . . . . .

3-17

Tables

2±1 Typical TI Plug-N-PlayPlatform Jumper and Switch Settings for the TPA0103 . . . . . . . . .2-12±2 Typical TPA0103 EVM Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-12±3 TIPlug-N-PlayPlatform Jumper and Switch Settings for the TPA0103 . . . . . . . . . . . . . . .2-32±4 TPA0103 EVM Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-32±5 TPA0103 EVMStand-AloneJumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-43±1 TPA0103 Output Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-53±2 TPA0103 Output Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-93±3 Typical TPA0103 EVM Jumper Settings for Center Channel BTLStand-Alone . . . . . . . .3-163±4 Typical TPA0103 EVM Jumper Settings for Stereo Headphones Output . . . . . . . . . . . . .3-173±5 TPA0103 EVM Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

vi

Chapter 1

Introduction

This chapter provides an overview of the Texas Instruments (TI ) TPA0103 Audio Amplifier Evaluation Module (SLOP103). 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

TPA0103 EVM Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 1±4

 

 

 

Introduction 1-1

1-2

Introduction

Feature Highlights

1.1 Feature Highlights

The TI TPA0103 Audio Amplifier Evaluation Module and the TI Plug-N-PlayAudio Amplifier Evaluation Platform include the following features:

-TPA0103 Low-VoltageAudio Power Amplifier Evaluation Module

J 535-mWsingle-endedinto 4Ω at 5 V L/R channels

J 1.75-Wbridge-tiedload (BTL) into 4Ω at 5 V center channel

J 3.3-Vand5-Voperation

J Low distortion (< 0.25% THD+N at full power)

J Ultra-lowcurrent consumption in full shutdown mode

J Two sets of stereo inputs with internal MUX

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

JOnboard 9-Vbattery

JExternal 5-V±15-VDC VCC supply inputs

JExternal regulated VDD supply input

JSocket for onboard 5 V/3.3 V VDD voltage regulator EVM

JOnboard overvoltage 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

Description

1.2 Description

The TPA0103 Audio Power Amplifier Evaluation Module is a complete, low-powerthree-channelaudio power amplifier. It consists of the TI TPA01033-ChannelAudio Power Amplifier IC along with a small number of other parts mounted on a circuit board that measures approximately 2¼ inches by 1½ inches (Figure 1±1).

Figure 1±1. The TI TPA0103 Audio Amplifier Evaluation Module

RHP

C7

R10

 

 

GND

C6

R8

RIN

 

 

 

GND

 

 

R15

 

 

 

C8

 

R18

 

R16

 

 

GND

C3

 

 

 

LIN

C1

 

GND

R1

 

 

 

LHP

C2

R3

 

VDD

 

GND

R11 ROUT+

 

+

 

 

 

GND

R7

C11

 

 

S5

R14

 

S3

COUT±

 

 

HP/L*

R9

 

 

S4

 

 

 

C9 C10

 

MODE A

 

 

 

 

R17

 

 

 

R12

 

 

 

 

MODE B

U1

 

 

 

 

 

 

TPA0103

EVM

R4

 

 

 

 

 

REV. A

 

C12

 

Lit.# SLOP103

R13

C5

S2

 

SDWN

 

 

 

 

 

R2

±3

S1

R6

 

COUT+

 

 

 

 

GND

 

 

R5

 

 

 

 

 

 

LOUT+

 

009228

 

 

 

 

 

 

 

 

Single in-lineheader pins are mounted to the underside of the module circuit board to allow the EVM to be plugged into the TIPlug-N-PlayAudio Amplifier Evaluation Platform, or to be wired directly into existing circuits and equipment when usedstand-alone.

The platform has room for a single TPA0103 evaluation module and is a convenient vehicle for demonstrating TI's audio power amplifier and related evaluation modules. The EVMs simply plug into the platform, which automatically provides power to the modules, interconnects them correctly, and connects them to a versatile array of standard audio input and output jacks and connectors. Easy-to-useconfiguration controls allow the platform and EVMs to quickly model many possibleend-equipmentconfigurations.

There is nothing to build, nothing to solder, and nothing but the speakers included with the platform to ªhook up.º

1.3 TPA0103 EVM Specifications

Supply voltage range, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 V to 5.5 V

Supply current, IDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 1.5 A, max

Continuous output power, PO: center channel, THD = 0.2%,4-Ω BTL, VDD =5 V: . . . . 1.75 W

 

L/R channels, THD = 0.2%, 4-Ω SE, VDD =5 V:

. . . . .

. 535 mW

 

L/R channels, THD = 0.2%, 32-Ω SE, VDD =5 V:

. . . . 100 mW

Audio input voltage, VI:

L/R IN, gain = 2 ± 22 BTL . . . . . . . . . . . . . . . . . .

0.75

VPP , max

 

L/R IN HP, gain = 1 . . . . . . . . . . . . . . . . . . . . . . .

. . . 4

VPP , max

Minimum load impedance, RL

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

. . . . .

. . . . . 4 Ω

1-4

Introduction