Texas Instruments TPA0253EVM Bedienungsanleitung

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 

December 2000 Mixed-Signal Products

User’s Guide

SLOU100

IMPORTANT NOTICE

TexasInstruments andits subsidiaries(TI) reservethe rightto makechanges totheir productsor todiscontinue

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 acknowledgment, 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

TIdeemsnecessarytosupport thiswarranty. Specifictestingofallparameters ofeachdevice isnotnecessarily

performed, except those mandated by government requirements.

Customers are responsible for their applications using TI components.

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.

TIassumes noliabilityforapplicationsassistance orcustomer productdesign. TIdoes notwarrantorrepresent

thatanylicense,eitherexpressorimplied,isgrantedunderanypatentright,copyright,maskworkright,orother

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.

iii

Chapter Title—Attribute Reference

Preface

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.



TPA0253 1-W Mono Audio Power Amplifier With Headphone

Drive

(literature number SLOS280) This is the data sheet for the

TPA0253 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

testedforcompliancewiththelimitsofcomputingdevicespursuanttosubpart

Jofpart 15ofFCCrules,which aredesignedtoprovidereasonableprotection

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.

Running Title—Attribute Reference

Contents

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

1.1 Feature Highlights 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

1.3 TPA0253 EVM Specifications 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Operation 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4 Stand-Alone Connection Diagrams 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4.1 TPA0253 EVMs Connected for Stereo BTL Output 2-5. . . . . . . . . . . . . . . . . . . . . . .

2.4.2 TPA0253 EVM Connected for SE Stereo Headphone Output 2-6. . . . . . . . . . . . . .

2.5 Reference 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.5.1 EVM Schematic 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.5.2 EVM Parts List 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.5.3 Module PCB Layers 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figures

1–1 The TI TPA0253 Audio Amplifier Evaluation Module 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

2–2 Module Map 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–3 TPA0253 EVMs Connected for Stereo BTL Output 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–4 TPA0253 EVM Connected for Single-Ended Stereo Headphone Output 2-6. . . . . . . . . . . . . .

2–5 TPA0253 EVM Schematic Diagram 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–6 TPA0253 EVM PCB 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–7 TPA0253 EVM Silkscreen 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–8 TPA0253 EVM Bottom Layer 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tables

2–1 Platform Jumper and Switch Settings for the TPA0253 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2 TPA0253 EVM Parts List 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1

Introduction

This chapter provides an overview of the Texas Instruments (TI) TPA0253

audio amplifier evaluation module (SLOP270). 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 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

1.3 TPA0253 EVM Specifications 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 1

Feature Highlights

1-2

Introduction

1.1 Feature Highlights

The TI TPA0253 audio amplifier evaluation module and the TI plug-n-play

audio amplifier evaluation platform include the following features:

TPA0253 mono 1-W audio power amplifier with stereo headphone drive

evaluation module

Single channel, bridge-tied load (BTL) or dual-channel single-ended

operation

Internal summing of left and right channels to generate mono signal

1 W output power into 8 Ωat 5 V, BTL

0.3 W output power into 8 Ωat 3 V, BTL

Low current consumption in shutdown mode (1 µA)

Stereo headphone drive

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

evaluation platform

Evaluation module is designed to simply plug into the platform,

automatically making all signal, control, and power connections

Platform provides flexible power options

Jumpers on the platform select power and module control options

Switches on the platform route signals

Platformprovides quick andeasyaudioinput and outputconnections

Platform power options

External 5-V – 15-V DC VCC supply inputs

External regulated VDD supply input

Socket for onboard 5 V/3.3 V VDD voltage regulator EVM

Onboard overvoltage and reverse polarity power protection

Platform audio input and output connections

Left and right RCA phono jack inputs

Miniature stereo phone jack input

Mono (right) RCA phono jack output

Mono (right) compression speaker terminal output

Miniature stereo headphone jack output

Description

1-3

Introduction

1.2 Description

The TPA0253 audio power amplifier evaluation module is a complete 1-watt

mono audio power amplifier with stereo headphone drive. It consists of the TI

TPA0253 mono 1-W audio power amplifier IC along with a small number of

other parts mounted on a circuit board that measures approximately 2 1/4

inches by 1 1/2 inches (Figure 1–1).

Figure 1–1.The TI TPA0253 Audio Amplifier Evaluation Module

GND

LO/MO+

SHUTDOWN

GND

VDD GND

GND

LIN

VDD GND

GND

RIN

TPA0253 EVM Board

U1 +

TEXAS

INSTRUMENTS

2000

R2 S1

STEREO/MONO

SLOP270

SHUTDOWN

R9 R6

C8 C7

RO/MO+

Single in-line header pins extend from the underside of the module circuit

board to allow the EVM to be plugged into the TI plug-n-play audio amplifier

evaluationplatform,ortobewired directlyintoexistingcircuitsandequipment

when used stand-alone.

The platform has room for a single TPA0253 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,

andconnectsthemtoaversatilearrayofstandardaudioinputandoutputjacks

and connectors. Easy-to-use configuration controls allow the platform and

EVMs to quickly model many possible end-equipment configurations.

There is nothing to build, nothing to solder, and nothing but the speakers

included with the platform to

hook up

1.3 TPA0253 EVM Specifications

Supply voltage range, VDD 2.5 V to 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply current, IDD 0.5A max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous output power per channel, PO: 8-ΩBTL, VDD=5V 1W. . . . . . .

Audio input voltage, VI, 5 Vp–p max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Minimum load impedance, RL8 Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4

Introduction

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