Texas Instruments TAS5518 Manuale utente

TAS5518-5152K8EVM

Evaluation Module for TAS5518 Digital Audio PWMProcessor and TAS5152 Digital Amplifier Power-OutputStage

User's Guide

June 2006 Digital Audio & Video Products

SLEU074

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Contents

Preface ............................................................................................................................... 5

1 Overview ................................................................................................................... 71.1 TAS5518-5152K8EVM Features.................................................................................. 81.2 PCB Key Map ....................................................................................................... 9

2 System Interfaces ..................................................................................................... 112.1 Power Supply (PSU) Interface (J901 and J900) .............................................................. 122.2 PSU Control Interface (J902) .................................................................................... 132.3 Loudspeaker Connectors (J101–J107) ......................................................................... 142.4 Headphone Connector (J700) ................................................................................... 152.5 Control Interface (J40) ............................................................................................ 152.6 Digital Audio Interface (J60) ..................................................................................... 16

3 Protection ................................................................................................................ 173.1 Short-Circuit Protection and Fault-Reporting Circuitry ....................................................... 183.2 Fault Reporting .................................................................................................... 18

Important Notices ............................................................................................................... 19

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List of Figures

1-1 Integrated PurePath Digital™ Amplifier System ......................................................................... 81-2 Physical Structure for TAS5518-5152K8EVM (Rough Outline) ....................................................... 92-1 Recommended Power-Up Sequence .................................................................................... 122-2 J901 and J900 Pin Numbers ............................................................................................. 122-3 J902 Pin Numbers ......................................................................................................... 132-4 J101–J107 Pin Numbers .................................................................................................. 142-5 J700 Pin Numbers ......................................................................................................... 15

List of Tables

1 Related Documentation From TI ........................................................................................... 62-1 Recommended Supply Voltages ......................................................................................... 122-2 J901 Pin Description ....................................................................................................... 122-3 J900 Pin Description ....................................................................................................... 132-4 J902 Pin Description ....................................................................................................... 132-5 J101–J107 Pin Description ................................................................................................ 142-6 J700 Pin Description ....................................................................................................... 152-7 J40 Pin Description ........................................................................................................ 152-8 J60 Pin Description ........................................................................................................ 163-1 TAS5152 Warning/Error Signal Decoding .............................................................................. 18

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Preface

SLEU074 – June 2006

Read Me First

About This Manual

This manual describes the operation of the TAS5518-5152K8EVM evaluation module (EVM) from TexasInstruments (TI).

How to Use This ManualThis document contains the following chapters:

Chapter 1 - Overview

Chapter 2 - System Interfaces

Chapter 3 - Protection

Information About Cautions and WarningsThis manual may contain cautions and warnings.

CAUTION

This is an example of a caution statement.

A caution statement describes a situation that could potentially damage yoursoftware or equipment.

WARNINGThis is an example of a warning statement.

A warning statement describes a situation that could potentiallycause harm to you.

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

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Related Documentation From TI

Related Documentation From TITable 1 contains a list of data manuals that have detailed descriptions of the integrated circuits used in thedesign of TAS5518-5152K8EVM. The data manuals can be obtained at http://www.ti.com .

Table 1. Related Documentation From TI

PART NUMBER LITERATURE NUMBER

TAS5518 SLES115TAS5152 SLES127TPA112 SLOS212TPS3801K33 SLVS219LM317M SLVS297TPS76733 SLVS208

Additional Documentation

qTAS5518-5152K8EVM Application Report (SLEA061)qPC Configuration Tool for TAS5518 (TAS5518 GUI Ver. 4.0 or later)qGeneral application notes

Trademarks

PurePath Digital, Equibit, PowerPAD are trademarks of Texas Instruments.

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Chapter 1SLEU074 – June 2006

Overview

The TAS5518-5152K8EVM PurePath Digital™ customer evaluation amplifier moduledemonstrates two audio integrated circuits, TAS5518 and TAS5152, from TexasInstruments (TI).

The TAS5518PAG is a high-performance 32-bit (24-bit input) multichannel PurePathDigital pulse-width modulator (PWM) based on Equibit™ technology, with a fullysymmetrical AD modulation scheme. It accepts input sample rates from 32 kHz to192 kHz. The device also has digital audio processing (DAP) that provides 48-bit signalprocessing, advanced performance, and a high level of system integration. The devicehas interfaces for headphone output and power supply volume control (PSVC).

The TAS5152DKD is a compact, high-power, digital amplifier power stage designed todrive a 4- Ωloudspeaker up to 125 W (10% THD+N). It contains integrated gate drivers,four matched and electrically isolated enhancement-mode N-channel power DMOStransistors, and protection/fault-reporting circuitry.

The DKD PowerPAD™ package top side allows heat transfer through a heatsink. Theheatsink in this design is for evaluation purposes only.

This EVM, together with a TI input-USB board, is a complete 7-channel digital audioamplifier system that includes digital input (S/PDIF), analog inputs, interface to PC, andDAP features, such as digital volume control, input and output mixers, auto mute,equalization, tone controls, loudness, dynamic range compression, and PSVC output.There are configuration options for stereo line level output, stereo headphone output,and power-stage failure protection.

This 6.1 system is designed for home-theater applications, such as A/V receivers, DVDminicomponent systems, home theater in a box (HTIB), DVD receivers, or plasmadisplay panels (PDPs).

Topic .................................................................................................. Page

1.1 TAS5518-5152K8EVM Features ..................................................... 81.2 PCB Key Map ............................................................................. 9

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1.1 TAS5518-5152K8EVM Features

7-/8-Channel Speaker Output

TAS5518-5152K8EVM

Module

6-Channel

Anal g

Input

USB

Interface

Optical

and

Coaxial

S/PDIF Input

Example

TI Input-USB

Board

Control Interface

I C Bus

Power Supply

2-Channel

Headphone Output

TAS5518-5152K8EVM Features

•Stereo-channel line output•Stereo headphone output•Self-contained protection system (short circuit and thermal)•Standard inter-IC sound (I

S) and inter-integrated circuit (I

C)/control connector for TI input board•Double-sided plated-through printed circuit board (PCB) layout

Figure 1-1. Integrated PurePath Digital™ Amplifier System

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1.2 PCB Key Map

SPEAKER OUTPUTS SPEAKER OUTPUTS

T I TAS5518

OUTPUT STAGE

CHANNEL 3

3.3V

Regulator

Gate Drive

Regulator

PSU

INTERFACE

(J901)

PSU

CONTROL

(J902)

INPUT SIGNAL

INTERFACE (J60)

CONTROL

INTERFACE (J40)

HEADPHONE

OUTPUT

(J700)

J101J103J102J104

PSU

INTERFACE

(J900)

J105 J106J107J108

OUTPUT STAGE

CHANNEL 1

OUTPUT STAGE

CHANNEL 4

OUTPUT STAGE

CHANNEL 2

OUTPUT STAGE

CHANNEL 6

OUTPUT STAGE

CHANNEL 7

OUTPUT STAGE

CHANNEL 5

OUTPUT STAGE

CHANNEL 8

PCB Key Map

Physical structure for the TAS5518-5152K8EVM is shown in Figure 1-2 .

Figure 1-2. Physical Structure for TAS5518-5152K8EVM (Rough Outline)

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PCB Key Map

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