AmplifierCircuits

General Description: AN7531SA is an audio signal processing IC in which bass boost amplifiers, ALC circuit and beep circuit are built in the headphone amplifiers for use in portable equipment. Its headphone output block is using the center amplifier method which eliminates the need for coupling capacitor so that the circuit is most suitable for rationalization of audio circuit.  Circuit diagram:  See in datasheet

Features: Output coupling capacitor is not required (Center amplifier method) Built-in bass boost amplifiers ALC circuit Built-in mute circuit Built-in beep circuit With mixed output pin of power amplifier Circuit Diagram: Headphone amplifier IC for portable equipment