DatasheetsPDF.com

BA3884S Dataheets PDF



Part Number BA3884S
Manufacturers Rohm
Logo Rohm
Description High-definition sound processor
Datasheet BA3884S DatasheetBA3884S Datasheet (PDF)

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 karao.

  BA3884S   BA3884S



Document
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 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 of sound, and this expresses the characteristics of the sound. Therefore, when replaying audio on audio playback systems, it is extremely important that BA3884F / BA3884S the rise section of the signal be expressed accurately with respect to the original sound. However, there is inevitable mismatching between the speakers and amplifiers in current audio systems. Solidstate power amplifiers use negative feedback techniques and operate off a fixed voltage supply, but as speakers are a current element, mismatching in the system inevitably occurs. In addition, the speaker impedance characteristics are strongly influenced by the electrical reactance of the voice coil, and the mechanical reactance of the cone assembly. As a result of this, distortion is generated in the rising sections of audio.



Similar Datasheet



BA3884F << | BA3884S | >> BA3888S


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)