TM
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FEATURES
DESCRIPTION
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APPLICATIONS
SLAS557B – SEPTEMBER 2007 – REVISED 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
The TAS5342 is a high-performance, integrated
stereo digital amplifier power stage designed to drive
–
2
× 80 W at 10% THD+N Into 6
a 4-
bridge-tied load (BTL) at up to 100 W per
–
2
× 65 W at 10% THD+N Into 8
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
The TAS5342 has a complete protection system
–
4
× 30 W at 10% THD+N Into 4
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
protection, over-current protection, under voltage
–
1
× 160 W at 10% THD+N Into 3
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
80-m
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.