ba3853bfs ROHM Co. Ltd., ba3853bfs Datasheet
ba3853bfs
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ba3853bfs Summary of contents
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... Stereo sound controller IC BA3853BFS The BA3853BFS is a dual-channel electronic volume controller built around a low-noise, low-distortion VCA suited for car-audio applications, and has performance that rivals mechanical-type volume controllers. In addition to volume control, the IC includes all functions required for controlling sound quality, to allow more compact designs with far fewer components ...
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... Audio ICs FBlock diagram 792 BA3853BFS ...
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... Audio ICs FPin descriptions and input / output circuits BA3853BFS 793 ...
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... Audio ICs 794 BA3853BFS ...
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... Input and output signals have the same phase. (2) Maximum loudness control variation occurs at *30dB ATT. At *10dB ATT, the variation is 0dB. (3) For loudness operation during tone adjustment, arithmetic processing is performed with the maximum tone varia- tion amount. BA3853BFS = 8V 1kHz 20Hz to 20kHz, CC 795 ...
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... Audio ICs FMeasurement circuit 796 BA3853BFS ...
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... Audio ICs FMeasurement circuit switch operation A, B and C in the table refer to the following: A: Max. volume volume C: Min. volume BA3853BFS 797 ...
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... The loudness is set by a calculation based on the tone control current. Refer to control curves item 3 of the application notes. (5) The control curves for the balance and fader are given in the measurement data. BA3853BFS ...
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... Design the filter with due consideration to the fre- quency characteristics. The values for the filter given in the application circuit have been selected to give suffi- cient boost and cut 100Hz and f = 10kHz. BA3853BFS ) = 80kHz 799 ...
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... Fader control curve The fader control curve has been designed so that at be- low 2.2V, the front (1-Fr, 2-Fr) is attenuated, and at above 2.8V, the rear (1-Rr, 2-Rr) is attenuated. (5) Input / output circuits Buffers are used before and after the signal input and output pins. BA3853BFS ...
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... Audio ICs FExternal dimensions (Units: mm) BA3853BFS 801 ...