• PurePath™ HD Enabled Integrated Feedback Provides:
  • Signal Bandwidth up to 80 kHz for High-Frequency Content From HD Sources
  • Ultralow 0.03% THD at 1W into 4Ω
  • 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 BTL Subwoofer
  • Quad Single-Ended Outputs
• Total Output Power at 10% THD+N
  • 400 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

The TAS5630B device is a high-performance analog-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) Achievable output power levels are dependent on the thermal configuration of the target application. A high-performance thermal interface material between the exposed package heat slug and the heat sink should be used to achieve high output power levels. 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. When coupled with TI’s class-G power-supply reference design for TAS563x, industry-leading levels of efficiency can be achieved.