BA3880S

Audio ICs High-definition sound processor BA3880S The BA3880S is a sound processor IC that performs phase and harmonic compensation on audio signals to accurately reproduce the “rise” section of audio signals that determines the characteristics of the sound, and thus reproduce the original recording as naturally as possible. FApplications Component stereo systems, radio cassette players, car stereo systems, televisions, VCRs, and active speakers. FFeatures 1) Corrects distortion in the rising section of audio signals that results from miss-matched speakers and amplifiers, and reproduces the original sound faithfully. 2) To allow application with all types of speakers and sources, the clarity can be adjusted using DC control. 3) DC control provided for selection of either processor mode or bypass mode. 4) Bass boost fixed internally to 4dB. FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions 419 Audio ICs FBlock diagram BA3880S 420 Audio ICs FElectrical characteristics(unless otherwise noted, Ta = 25_C, VCC = 9V, fIN = 1kHz, VIN = 200mVrms, Rg = 600Ω, RL = 100kΩ and VCTL = 4.5V) BA3880S 421 Audio ICs FMeasurement circuit BA3880S 422 Audio ICs FCircuit operation The BA3880S high-definition sound processor system IC treats the amplifier and speakers as a total audio system, and performs signal processing at the amplifier input stage to accurately reproduce the rise sections of audio signals that determine the characteristics of sound, and ens...