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HT8693 is a filter-less Mono audio power amplifier IC with choice of Class D or Class AB mode. Operating in Class D mode, HT8693 can provide maximum output power of 10W at VDD = 8.5V, THD+N = 10%, RL = 4Ω. Operating in Class AB mode, HT8693 can provide maximum output power of 9W at VDD = 8.5V, THD+N = 10%, RL = 4Ω.HT8693 features Anti-Clipping Function (ACF) which detects output signal clip due to the over input signal and suppresses the output signal clip automatically. Also the ACF function can adapt the output clip caused by power supply voltage down with battery. It can significantly improves the sound quality, creating a very comfortable musical enjoyment, and to protect the speakers from overload damage. It also supplies ACF OFF mode.HT8693 has a filter-less modulation circuit which directly drives speakers while realizes low distortion and low noise characteristics. Thanks to filter-less, circuit design with fewer external parts can be made in portable applications.HT8693 has the independent Shutdown functionwhichcanminimizethepower consumption at standby function. As for protection function, over current protection function for speakeroutputterminals,overtemperature protection function, and low supply voltage malfunction preventing function are also prepared.