TAS5631B

300 -W立体声/ 600 -W单声道的PurePath HD数字输入功率级 300-W STEREO / 600-W MONO PurePath HD DIGITAL-INPUT POWER STAGE

DESCRIPON

The 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.

FEATURES

• 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

APPLICATIONS

• Mini Combo System

• AV Receivers

• DVD Receivers

• Active Speakers