The BA7786FP-Y and BA7787FS are sound amplifiers designed for notebook computers, and contain a suspend function and input pins for the system beep and PM beep sounds used by notebook computers. In short, this single chip IC contains all the analog audio components needed for notebook computers.

•Features
1) Stereo headphone amplifier that supports mixing input, along with a stereo speaker amplifier (BA7786FP-Y) or BTL monaural speaker amplifier (BA7787FS).
2) Internal anti-pop circuit, to prevent the popping sounds that occur when the power is turned on and off.
3) Internal electronic volume switch and mute circuit.
4) Separate suspend modes for the headphone amplifi
er and speaker amplifier, for low-power-consumption computers .
5) Two beep input pins, a necessity for notebook com puters.