HFDA801A is a 2MHz PWM Class-D audio amplifier with four bridge outputs from STMicroelectronics. High quality sound is claimed by the company: “With a signal-to-noise ratio of 121dB, 120dB dynamic range and only 10μV output noise, the HFDA801A delivers an extraordinary level of audio performance.” Distortion is typically 0.02% at 1W 1kHz into 4Ω or 2Ω, ...
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