TAS2572 Digital-Input Class-D Audio Amplifier Texas Instruments TAS2572 Digital-Input Class-D Audio Amplifier has an integrated Class-H Boost for higher power delivery in battery-operated systems. The device has integrated speaker voltage and current sense (IV-Sense) for real-time monitoring of the loudspeakers. IV-sense data can be used to run speaker protection algorithms on a host DSP to enable high output SPL while keeping speakers in a safe operating region.