AmplifierCircuits

Dual pre power amplifier dc volume control

General Description: 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. Circuit diagram: Dual-channel electronic volume controller Datasheet for BA3853: Download

General Description: TDA7495 is a stereo 11+11W class AB  power amplifier assembled in the @ Multiwatt 15  package, specially designed for high quality  sound, TV applications.  Features of the TDA7495 include linear volume  control, Stand-by and mute functions. Circuit Diagram: TDA7495 circuit diagram

Features: 10W OUTPUT POWER RL = 8Ω,  @ THD = 10% VCC = 28V ST-BY AND MUTE FUNCTIONS LINEAR VOLUME CONTROL DC COUPLED WITH POWER OP AMPLIFIER NO BOUCHEROT CELL NO ST-BY RC INPUT NETWORK SIGNAL LINE OUTPUT BEFORE VOLUME CONTROLLING AND MUTING 3 SWITCHABLE VOLTAGE CONTROLLED INPUT PINS SINGLE SUPPLY RANGING UP TO 35V SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION INTERNALLY FIXED GAIN  SOFT CLIPPING LOW TURN-ON TURN-OFF POP NOISE MULTIWATT 15 PACKAGE Circuit Diagram: Circuit Diagram TDA7494