The APA3163 is a digital input, stereo, high efficiency, Class-D audio amplifier available in a TQFP7x7-48P package. The APA3163 accepts the digital serial audio data and using the digital audio processor to convert the audio data becomes the stereo Class-D output speaker amplifier. This provides the seamless integration between the codec and the speaker amplifier. The APA3163 is a slave device receiving clocks from external source, and the Class-D’s PWM switching frequency is 352.8kHz for the sampling rate 44.1kHz or 384 kHz for sampling 48kHz, depend on the input signal’s sampling rate. · Operating Voltage: 8.0V~24V for PVDD – 3.0V~3.6V for DVDD and AVDD · High Efficiency Class-D Operation Eliminate the Need of Heatsinks · Digital Serial Audio Input (Stereo Output) · I 2C Control Interface · Sampling Rate can Support from 32kHz to 192kHz · Separated Volume Control from 24dB to Mute · Soft Mute (50% Duty Cycle) · Programmable Dynamic Range Compression – Power Limiter – Speaker Protection – Night-Mode Listening · Programmable Biquads for Speaker EQ · Shutdown and Mute Function · Thermal and Over-Current Protections with AutoRecovery · Space Saving Package TQFP7x7-48P · Lead Free and Green Devices Available (RoHS Compliant) F