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BA3880S

Rohm
Part Number BA3880S
Manufacturer Rohm
Description High-definition sound processor
Published Apr 1, 2005
Detailed Description Audio ICs High-definition sound processor BA3880S The BA3880S is a sound processor IC that performs phase and harmonic ...
Datasheet PDF File BA3880S PDF File

BA3880S
BA3880S


Overview
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 ensure that the replayed audio is as close to the original sound and as natural sounding as possible.
Problems relating to playback of sound on audio systems.
With naturally-generated sound, high-frequency harmonic components generally occur first, followed by the fundamental frequency components.
This also applies to the attack section of the sound that characterizes many musical instruments.
It is the amplitude component that gives form to the frequency component and envelope at the rising point ...


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