Digital amplifier module, class D AMP module, digital AMP board 1. Introduce ... End class D design, it is new product of digital amplifier board, use SMT decal of main IC, connection is very ... class D amplifier Programmable gain(+22dB, +29.5dB, +36dB) High PSRR(90dB at 1kHz) Shutdown and mute control Integrated click-and-pop ...