Not Recommended For New Designs
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
FEATURES
APPLICATIONS
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PurePath™ HD Enabled Integrated Feedback
Provides:
– Signal Bandwidth up to 80 kHz for
High-Frequency Content From HD Sources
– Ultralow 0.03% THD at 1 W Into 4 Ω
– Flat THD at All Frequencies for Natural
Sound
– 80-dB PSRR (BTL, No Input Signal)
– >100-dB (A-weighted) SNR
– Click- and Pop-Free Start-Up
Multiple Configurations Possible on the Same
PCB With Stuffing Options:
– Mono Parallel Bridge-Tied Load (PBTL)
– Stereo Bridge-Tied Load (BTL)
– 2.1 Single-Ended Stereo Pair and
Bridge-Tied Load Subwoofer
– Quad Single-Ended Outputs
Total Output Power at 10% THD+N
– 600 W in Mono PBTL Configuration
– 300 W per Channel in Stereo BTL
Configuration
– 145 W per Channel in Quad Single-Ended
Configuration
High-Efficiency Power Stage (>88%) With
60-mΩ Output MOSFETs
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
Mini Combo System
AV Receivers
DVD Receivers
Active Speakers
DESCRIPTION
The TAS5631 is a high-performance PWM input
class-D amplifier with integrated closed-loop
feedback technology (known as PurePath HD
technology) with the ability to drive up to 300 W (1)
stereo into 4-Ω to 8-Ω speakers from a single 50-V
supply.
PurePath HD technology enables traditional
AB-amplifier performance (
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