The BA3853BFS is a dual-channel electronic volume controller built around a low-noise, low-distortion VCA. It is suited for car-audio applications, and has performance that rivals mechanical-type volume controllers.
In addition to volume control, the IC includes all functions required for controlling sound quality, to allow more compact designs with far fewer components.

Features
1) Provides electronic control for volume, balance, fader, tone (bass and treble), and loudness.
2) The volume control circuit is a low-distortion, lownoise VCA circuit that uses DC voltage for control. The IC uses an internally-generated, temperaturecompensated reference voltage and is capable of dual-channel control with the addition of a single potentiometer.
3) Available in an SSOP-24 package that is ideal for compact designs.

Applications
    Car audio systems