Analog Devices Inc. MAX9838x Evaluation System is a fully assembled and tested system for evaluating the MAX98388 or MAX98389 Class-D audio amplifier. The EV system comprises a MAX98388 or MAX98389 development board (DEV board), an ADI Audio Interface Board III (AUDINT3), and a USB cable. As an EV system, evaluate the DEV board with the AUDINT3 board. Both devices support standard I2S, left-justified, and TDM digital audio interfaces. The AUDINT3 board provides a USB-to-PCM interface and a 1.8V VDD supply (needed to evaluate the DEV board). The DEV board requires one additional supply input, 2.3V to 10V (PVDD), when evaluating using the AUDINT3 board.