Texas Instruments TPA6100A2 Manuale utente

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2000 Mixed-Signal Products

User’s Guide

SLOU084

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.

Information About Cautions and Warnings

iii

Read This First

Preface

Read This First

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.

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



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.



TPA6100A2 50-mW Stereo Audio Power Amplifier

(literature

number SLOS269) This is the data sheet for the TPA6100A2 audio

amplifier integrated circuit.

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

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

Chapter Title—Attribute Reference

Contents

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

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

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

1.3 TPA6100A2 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4 Reference 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4.1 TPA6100A2 Filterless Class-D EVM Schematic 2-5. . . . . . . . . . . . . . . . . . . . . . . . . .

2.4.2 TPA6100A2 Audio Power Amplifier Evaluation Module Parts List 2-6. . . . . . . . . .

2.4.3 TPA6100A2 EVM PCB Layers 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Running Title—Attribute Reference

Figures

1–1 The TI TPA6100A2 Audio Amplifier Evaluation Module 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

2–3 TPA6100A2 Class-D EVM Schematic Diagram 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–4 TPA6100A2 EVM Top Layer 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–5 TPA6100A2 EVM Bottom Layer 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tables

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

TPA6100A2 EVM 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2 TPA6100A2 EVM Parts List 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1

Introduction

This chapter provides an overview of the Texas Instruments (TI) TPA6100A2

audio amplifier evaluation module (SLOP335). 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 Features 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

1.3 TPA6100A2 EVM Specifications 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 1

Features

1-2

Introduction

1.1 Features

The TI TPA6100A2 audio amplifier evaluation module and the TI Plug-N-Play

audio amplifier evaluation platform include the following features:

TPA6100A2 Stereo Audio Power Amplifier Evaluation Module

1.6-V to 3.6-V operation

Dual channel, single-ended operation

50-mW output power into 16 Ωat 3.3 V

Verylowdistortion—THD+Nislessthan0.04%at1kHzandlessthan

0.2% from 20 Hz to 20 kHz into 16-Ωloads, and less than 0.03% at 1

kHz and less than 0.2% from 20 Hz to 20 kHz into 32-Ωloads

Extremely low current consumption in shutdown mode

Internal thermal and short-circuit protection

Internal pop reduction circuitry

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

Onboard 9-V battery

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

External regulated VDD supply input

Socket for onboard 5-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

Left and right RCA phono jack outputs

Left and right compression speaker terminal outputs

Miniature stereo headphone jack output

Description

1-3

Introduction

1.2 Description

The TPA6100A2 audio power amplifier evaluation module is a complete,

low-power stereo audio power amplifier for high-fidelity line-level output,

headphone, and small speaker applications. It consists of the TI TPA6100A2

50-mW stereo audio power amplifier IC in a very small MSOP package,along

with a small number of other parts mounted on a circuit board that is

approximately one and a quarter inches square (see Figure 1–1).

Figure 1–1.The TI TPA6100A2 Audio Amplifier Evaluation Module

†Due to the very small size of the MSOP IC package, the standard part number TPA6100A2 is

replaced with the code TIAJL.

Single in-line header pins are mounted to 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 TPA6100A2 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 TPA6100A2 EVM Specifications

Supply voltage range, VDD 1.6 V to 3.6 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Supply current, IDD 160 mA, max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous output power, PO: 16 Ω, VDD = 3.3 V 50 mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Audio input voltage, VIVDD + 0.3 Vpp, max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Minimum load impedance, RL16 Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4

Introduction

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