BA3884S

Audio ICs High-definition sound processor BA3884F / BA3884S The BA3884F and BA3884S are sound processor ICs that perform 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, multimedia PCs, computer game machines and karaoke machines. 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. FAbsolute maximum ratings (Ta = 25_C) 3) DC control provided for selection of either processor mode or bypass mode. 4) Bass boost can be adjusted with the DC control in order to maintain a good balance with the dynamically changing upper frequencies. FRecommended operating conditions 428 Audio ICs FBlock diagram BA3884F / BA3884S FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 9V, fIN = 1kHz, VIN = 200mVrms, Rg = 600Ω, FElectrical characteristics (RL = 100kΩ, VCTL1 = 4.5V and VCTL2 = 4.5V) 429 Audio ICs FMeasurement circuit BA3884F / BA3884S 430 Audio ICs FCircuit operation The BA3884F / S high-definition sound processor system IC treats the amplifier and speake...