High performance Class-D power amplifier enables premium sound quality

The Texas Instruments TPA3244 device is a high performance Class-D power amplifier that enables true premium sound quality with Class-D efficiency. It features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. With a 30V power supply the device can drive up to 2 × 110W peak into 4ohm load and 2 × 60W continuous into 8ohm load and features a 2VRMS analog input interface that works seamlessly with high performance DACs such as Burr-Brown PCM52xx DAC Family from the company. In addition to excellent audio performance, the device achieves both high power efficiency and very low power stage idle losses below 0.45W. This is achieved through the use of 65mohm MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.