The TAS5631BDKD 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 (<0.03% THD) levels while providing the power efficiency of traditional class-D amplifiers.
Unlike traditional class-D amplifiers, the distortion curve does not increase until the output levels move into clipping.
PurePath HD technology enables lower idle losses, making the device even more efficient.
Feature
- 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 
   
- 400 W per Channel 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
 - APPLICATIONS 
   
- Mini Combo System
 - AV Receivers
 - DVD Receivers
 - Active Speakers
 
 














