The TPA3221DDVR is a 100-W stereo, 200-W mono audio amplifier manufactured by Texas Instruments. It features a 7- to 32-V supply and an analog input Class-D audio amplifier with low idle power. It comes in a 44-HTSSOP package that is rated for a temperature range of -40 to 85 degrees Celsius. It is designed for easy integration into audio applications such as home theater systems, powered speakers, and automotive infotainment systems. It also features 36V tolerant IOs, protections against over-temperature, over-voltage, and short-circuits, as well as click and pop suppression. Its fully, differential input and zero-DC-offset architecture helps reduce distortion for improved sound quality.