A digital audio power amplifier for aviation maintenance and ground support equipment. It optimizes aircraft cockpit and cabin communication audio systems during maintenance tests.

Delivering 20W per channel into 8Ω at 18V, it has a 32 - bit datapath and closed - loop architecture, ensuring 0.03% THD + N for high - fidelity audio and resisting power supply ripple. It supports 8kHz - 48kHz audio sampling rates and auto - detects rate changes without external microprocessor control.

Operating at 0 - 85℃ with a 10V - 26V supply range, its 48 - pin HTQFP package enables easy integration into test tools. It helps diagnose audio anomalies in aircraft communication systems, ensuring clear pilot - ground communication.