BA3842F

Audio ICs Preset equalizer sound control (P.S.C) IC BA3842F The BA3842F is a preset graphic equalizer IC with dynamic bass boost which is designed for audio equipment. FApplications Mini-component stereos Micro-component stereos Radio cassette recorders with CD FFeatures 1) Includes preset equalizer function with five equalizer positions and a flat mode setting. 2) Built-in dynamic bass boost with gain settings from 0 to 20dB in steps of 5dB. 3) Low distortion and low noise. 4) Built-in dynamic bass boost and interlocked ALC (Auto Level Control). FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions 563 Audio ICs FBlock diagram BA3842F 564 Audio ICs FPin descriptions BA3842F 565 Audio ICs FInput / output circuits BA3842F 566 Audio ICs BA3842F 567 Audio ICs BA3842F 568 Audio ICs BA3842F FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 10V, f = 1HZ, VIN = 200mVrms, preset equalizer normal : Rg = 620Ω, during dynamic bass boost : RL = 10kΩ) Operating specifications Input and output signal pins are in phase. 569 Audio ICs FReference values for application circuit example (unless otherwise noted, Ta = 25_C, VCC = 10V, FVIN = 200mVrms, preset equalizer normal : Rg = 620Ω, during dynamic bass boost : RL= 10kΩ) BA3842F Operating specifications Input and output signal pins are in phase. 570 Audio ICs FMeasurement circuit BA3842F 571 Audio ICs FCircuit operation (1) Operating power supply voltage range Within the o...