D4112 audio power amplifier circuit , with large output power and good buck characteristics. When the output is saturated, the sound quality is softer; the high audio segment has no switching distortion. The electronic filter is used inside the circuit, and the ripple rejection ratio is quite good. In addition, a power supply terminal for the tuner or preamplifier is provided inside the circuit for easy connection with the preamplifier. The circuit is suitable for portable radios, desktop radios, and recorders for audio power amplifiers.
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