TAS5630

PurePath

TAS5631

TAS5518

Digital PWM

Processor

DIGITAL

AUDIO

INPUT

♪

♪

TAS5631

www.ti.com

SLES221C – JULY 2009 – REVISED APRIL 2010

300-W STEREO / 600-W MONO PurePath™ HD DIGITAL-INPUT POWER STAGE

Check for Samples: TAS5631

1

FEATURES

APPLICATIONS

•

Mini Combo System

23

•

PurePath™ HD Enabled Integrated Feedback

Provides:

•

AV Receivers

•

DVD Receivers

–

Signal Bandwidth up to 80 kHz for

High-Frequency Content From HD Sources

•

Active Speakers

–

Ultralow 0.03% THD at 1 W Into 4

Ω

DESCRIPTION

–

Flat THD at All Frequencies for Natural

Sound

The TAS5631 is a high-performance PWM input

class-D

amplifier

with

integrated

closed-loop

–

80-dB PSRR (BTL, No Input Signal)

feedback

technology

(known

as

PurePath

HD

–

>100-dB (A-weighted) SNR

–

Click- and Pop-Free Start-Up

stereo into 4-

Ω to 8-Ω speakers from a single 50-V

supply.

•

Multiple Configurations Possible on the Same

PCB With Stuffing Options:

PurePath

HD

technology

enables

traditional

–

Mono Parallel Bridge-Tied Load (PBTL)

AB-amplifier performance (<0.03% THD) levels while

providing the power efficiency of traditional class-D

–

Stereo Bridge-Tied Load (BTL)

amplifiers.

–

2.1 Single-Ended Stereo Pair and

Unlike traditional class-D amplifiers, the distortion

Bridge-Tied Load Subwoofer

curve only increases once the output levels move into

–

Quad Single-Ended Outputs

•

Total Output Power at 10% THD+N

PurePath HD technology enables lower idle losses,

–

600 W in Mono PBTL Configuration

making the device even more efficient.

–

300 W per Channel in Stereo BTL

Configuration

Note 1. Achievable output power levels are

–

145 W per Channel in Quad Single-Ended

dependent on the thermal configuration of the target

Configuration

application. A high-performance thermal interface

material between the package exposed heat slug

•

High-Efficiency Power Stage (>88%) With

and the heat sink should be used to achieve high

60-m

Ω Output MOSFETs

output-power levels.

•

Two Thermally Enhanced Package Options:

–

PHD (64-Pin QFP)

–

DKD (44-Pin PSOP3)

•

Self-Protection Design (Including

Undervoltage, Overtemperature, Clipping, and

Short-Circuit Protection) With Error Reporting

•

EMI Compliant When Used With

Recommended System Design

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

PurePath HD is a trademark of Texas Instruments.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2009–2010, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.