TM

1

FEATURES

DESCRIPTION

0

120

10

20

30

40

50

60

70

80

90

100

110

0

32

2

4 6 8 10 12 14 16 18 20 22 24 26 28 30

T =75 C,

THD+N@10%

C

°

8 W

6 W

4 W

PVDD-SupplyVoltage-Vrms

APPLICATIONS

TAS5342L

SLAS558 – OCTOBER 2007

www.ti.com

100 W STEREO DIGITAL AMPLIFIER POWER STAGE

23

• Total Power Output (Bridge Tied Load)

–

2

× 100 W at 10% THD+N Into 4 Ω

The TAS5342L is a high-performance, integrated

stereo digital amplifier power stage designed to drive

–

2

× 80 W at 10% THD+N Into 6 Ω

a 4-

Ω bridge-tied load (BTL) at up to 100 W per

–

2

× 65 W at 10% THD+N Into 8 Ω

channel with low harmonic distortion, low integrated

• Total Power Output (Single Ended)

noise, and low idle current.

–

4

× 40 W at 10% THD+N Into 3 Ω

The TAS5342L has a complete protection system

–

4

× 30 W at 10% THD+N Into 4 Ω

integrated on-chip, safeguarding the device against a

wide range of fault conditions that could damage the

• Total Power Output (Parallel Mode)

system. These protection features are short-circuit

–

1

× 200 W at 10% THD+N Into 2 Ω

protection, over-current protection, under voltage

–

1

× 160 W at 10% THD+N Into 3 Ω

protection, over temperature protection, and a loss of

PWM signal (PWM activity detector).

• >110 dB SNR (A-Weighted With TAS5518

Modulator)

A power-on-reset (POR) circuit is used to eliminate

power-supply sequencing that is required for most

• <0.1% THD+N (1 W, 1 kHz)

power-stage designs.

• Supports PWM Frame Rates of 192 kHz to

BTL OUTPUT POWER

432 kHz

vs

• Resistor-Programmable Current Limit

SUPPLY VOLTAGE

• Integrated Self-Protection Circuitry, Including:

–

Under Voltage Protection

–

Overtemperature Warning and Error

–

Overload Protection

–

Short-Circuit Protection

–

PWM Activity Detector

• Standalone Protection Recovery

• Power-On Reset (POR) to Eliminate System

Power-Supply Sequencing

• High-Efficiency Power Stage (>90%) With

110-m

Ω Output MOSFETs

• Thermally Enhanced Package 44-Pin HTSSOP

(DDV)

• Error Reporting, 3.3-V and 5.0-V Compliant

• EMI Compliant When Used With

Recommended System Design

PurePath Digital™

• Mini/Micro Audio System

• DVD Receiver

• Home Theater

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 Digital, PowerPad are trademarks of Texas Instruments.

3

All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007, 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.

Not Recommended for New Designs