Texas Instruments TPA721 Manuale utente

2001 Mixed-Signal Products

TPA721 MSOP

Audio Power Amplifier

Evaluation Module

User’s Guide

SLOU033A

IMPORTANT NOTICE

TexasInstrumentsanditssubsidiaries(TI)reservetherighttomakechangestotheirproductsortodiscontinue

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 products to the specifications applicable at the time of sale in accordance with

TI’sstandardwarranty.TestingandotherqualitycontroltechniquesareutilizedtotheextentTIdeemsnecessary

to support this warranty. Specific testing of all parameters of each device is not necessarily 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.

TIassumesnoliabilityforapplicationsassistance or customer product design. TI does not warrantorrepresent

thatanylicense,eitherexpressorimplied,isgrantedunderanypatentright,copyright,maskworkright,orother

intellectual property right of TI covering or relating to any combination, machine, or process in which such

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, license, warranty or endorsement thereof.

Reproduction of information in TI data books or data sheets is permissible only if reproduction is without

alterationandisaccompaniedbyallassociatedwarranties,conditions,limitationsandnotices. Representation

or reproduction of this information with alteration voids all warranties provided for an associated TI product or

service, is an unfair and deceptive business practice, and TI is not responsible nor liable for any such use.

Resale of TI’s products or services with statements different from or beyond the parameters stated by TI for

that product or service voids all express and any implied warranties for the associated TI product or service,

is an unfair and deceptive business practice, and TI is not responsible nor liable for any such use.

Also see: Standard Terms and Conditions of Sale for Semiconductor Products. www.ti.com/sc/docs/stdterms.htm

Mailing Address:

Texas Instruments

Post Office Box 655303

Dallas, Texas 75265

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.

TPA721 700-mW Low-Voltage Audio Power Amplifier (literature

number SLOS231) This is the data sheet for the TPA721 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

testedfor compliance with thelimitsof computing devices pursuanttosubpart

Jofpart 15of FCCrules, whicharedesignedtoprovidereasonableprotection

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.

Running Title—Attribute Reference

Chapter Title—Attribute Reference

Contents

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

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

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

1.3 TPA721 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 TPA721 MSOP Audio Amplifier Evaluation Module 3-3. . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.1 TPA721 Audio Amplifier IC 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.2 BTL Operation 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.3 Module Gain 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.4 Shutdown 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.5 Internal Depop Circuitry 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 Using The TPA721 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 Mute/Mode 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

3.4 Using The TPA721 MSOP EVM Stand-ALone 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.1 TPA721 MSOP EVM Connected for BTL Output 3-11. . . . . . . . . . . . . . . . . . . . . . . .

3.5 TPA721 MSOP Audio Amplifier Evaluation Module Parts List 3-12. . . . . . . . . . . . . . . . . . . .

Running Title—Attribute Reference

Figures

1–1 The TI TPA721 MSOP Audio Amplifier Evaluation Module 1-3. . . . . . . . . . . . . . . . . . . . . . . . . .

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 TPA721 MSOP EVM 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–3 TPA721 MSOP EVM Schematic Diagram 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–4 TPA721 Audio Amplifier IC 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

3–6 Mute/Mode and Polarity Control 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

3–8 TPA721 MSOP EVM Connected for Stereo BTL Output 3-11. . . . . . . . . . . . . . . . . . . . . . . . . . .

Tables

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

TPA721 MSOP EVM 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2 Platform Jumper and Switch Settings for the TPA721 MSOP EVM 2-3. . . . . . . . . . . . . . . . . . .

3–1 TPA721 MSOP EVM Parts List 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1

Introduction

This chapter provides an overview of the Texas Instruments (TI) TPA721

MSOPaudio amplifierevaluationmodule(SLOP215). It includes alistofEVM

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 TPA721 MSOP EVM Specifications 1–3. . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 1

Feature Highlights

1-2 Introduction

1.1 Feature Highlights

The TI TPA721 MSOP audio amplifier evaluation module and the TI

plug-n-play audio amplifier evaluation platform include the following features:

TPA721 Low-Voltage Audio Power Amplifier Evaluation Module

Single channel, bridge-tied load (BTL)

3.3-V and 5-V operation

700-mW output power into 8 Ωat 5 V, BTL

Internal depop circuitry

Internal thermal and short-circuit protection

Module gain is set at –4 V/V in BTL mode, –2 V/V in SE mode

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 and easy audio inputand output connections

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/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

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 TPA721 MSOP audio power amplifier evaluation module is a complete,

low-power single-channel audio power amplifier. It consists of the TI TPA721

700-mWlow-voltage audiopower amplifierICin averysmall MSOPpackage,

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

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

Figure 1–1.The TI TPA721 Audio Amplifier Evaluation Module

OUT+

IN–

GND

Vdd GND

U1 †

Shutdown

OUT–

GND

TEXAS

INSTRUMENTS

SLOP215

TPA721 MSOP EVM

S1 R1

†Due to the very small size of the MSOP IC package, the standard part number TPA721 is replaced with the code TIABC.

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

evaluation platform or to be wired directly into existing circuits and equipment

when used stand-alone.

The platform, with room for a pair of TPA721 MSOP evaluation modules, 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 TPA721 EVM Specifications

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

Supply current, IDD 450 mA, max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous output power, PO:8-ΩBTL, VDD = 5 V 700 mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Audio input voltage, VI2 Vpp, max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

1-4 Introduction

Indice

Altri manuali Texas Instruments Unità di controllo

Texas Instruments

Texas Instruments TLV320DAC26EVM Manuale utente

Texas Instruments

Texas Instruments INA901EVM-CVAL Manuale utente

Texas Instruments

Texas Instruments TPS568236 Manuale utente

Texas Instruments

Texas Instruments MCT8316AEVM Manuale utente

Texas Instruments

Texas Instruments TCA8424 Manuale utente

Texas Instruments

Texas Instruments TUSB564RNQ Manuale utente

Texas Instruments

Texas Instruments TCA7408EVM Manuale utente

Texas Instruments

Texas Instruments TPS272C45 Manuale utente

Texas Instruments

Texas Instruments TAS5755MEVM Manuale utente

Texas Instruments

Texas Instruments TLVM13660 Manuale utente

Texas Instruments

Texas Instruments INA260 Manuale utente

Texas Instruments

Texas Instruments DAC8580 Manuale utente

Texas Instruments

Texas Instruments DRV591 Manuale utente

Texas Instruments

Texas Instruments DRV8601 Manuale utente

Texas Instruments

Texas Instruments TPS2388EVM-612 Manuale utente

Texas Instruments

Texas Instruments DAC8574 Manuale utente

Texas Instruments

Texas Instruments LP-MSPM0C1104 Manuale utente

Texas Instruments

Texas Instruments TPS54362B EVM Manuale utente

Texas Instruments

Texas Instruments ADS42JB46 Manuale utente

Texas Instruments

Texas Instruments TPA6120A2RGY EVM Manuale utente

Texas Instruments

Texas Instruments TDP158RSBEVM Manuale utente

Texas Instruments

Texas Instruments UCD90120 Manuale utente

Texas Instruments

Texas Instruments SWIFT TPS548A20 Manuale utente

Texas Instruments

Texas Instruments bq2022A Manuale utente

Manuali Unità di controllo popolari di altre marche

Festo

Festo Compact Performance CP-FB6-E Manuale elenco delle parti

Elo TouchSystems

Elo TouchSystems DMS-SA19P-EXTME Manuale utente

JS Automation

JS Automation MPC3034A Manuale utente

JAUDT

JAUDT SW GII 6406 Series Guida rapida

Spektrum

Spektrum Air Module System Manuale utente

BOC Edwards

BOC Edwards Q Series Manuale utente

KHADAS

KHADAS BT Magic Manuale utente

Etherma

Etherma eNEXHO-IL Manuale utente

PMFoundations

PMFoundations Attenuverter Manuale utente

GEA

GEA VARIVENT Manuale utente

Walther Systemtechnik

Walther Systemtechnik VMS-05 Manuale utente

Altronix

Altronix LINQ8PD Istruzioni per il montaggio

Eaton

Eaton Powerware Series Manuale utente

WAGO

WAGO 750-407/040-000 Manuale utente

Sony

Sony CCU-590 Manuale utente

Graco

Graco 25D614 Manuale utente

Task Force Tips

Task Force Tips YE-RF-900 Manuale di programmazione

Shini

Shini SPV-U Series Manuale utente