BA3853BFS

Audio ICs Stereo sound controller IC BA3853BFS 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. FApplications Car audio systems FFeatures 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. FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions (Ta = 25_C) 791 Audio ICs FBlock diagram BA3853BFS 792 Audio ICs FPin descriptions and input / output circuits BA3853BFS 793 Audio ICs BA3853BFS 794 Audio ICs BA3853BFS FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 8V, f = 1kHz, BW = 20Hz to 20kHz, FVOL / C = MAX, TONE = ALL FLAT, FAD / C = FLAT, BAL / C = FLAT, LOUD = OFF, and MUTE = OFF) Operating specifications (1) Input and output signals have the same phase. (2) Maximum loudness control variation occurs at *30dB ATT. At *10dB ATT,...