Audio ICs
Band-pass filter for spectrum analyzer
BA3835S / BA3835F
The BA3835S and BA3835F are 5-band, band-pass filter ICs that use microprocessor time division to produce serial output for spectrum analyzer displays. To minimize the number of external components required and enable compact and reliable designs, all of the capacitors for the filters are on the chip.
Applications
CD radio cassette players, mini-component stereo systems, car stereos
Features
1)Five band-pass filter elements for spectrum analyzer displays.
2)High-speed readout
(output response time : 5μsec. Typ.).
3)Discharge time constant circuit for each band is on the chip.
4)Differential input amplifier rejects common-mode noise.
5)Single 5V power supply.
Absolute maximum ratings (Ta = 25 C)
Recommended operating conditions (Ta = 25 C)
601
Audio ICs |
BA3835S / BA3835F |
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Block diagram 1 (BA3835S)
602
Audio ICs |
BA3835S / BA3835F |
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Block diagram 2 (BA3835F)
603
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