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PDF BA3830S Data sheet ( Hoja de datos )
| Número de pieza | BA3830S | |
| Descripción | Band-pass filter for spectral analyzers | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Audio ICs
Band-pass filter for spectral analyzers
BA3830S
The BA3830S is a 6)1 band band-pass filter for spectral analyzer displays with internal recording indicator output. All
of the capacitors comprising the filter are internal capacitors, making it possible to significantly reduce the number of
attached components. This enables configuration of compact sets with a high level of reliability.
FApplications
CD radio cassette players, mini-components, car stereos
FFeatures
1) Six internal band-pass filters for spectral analyzers
2) Internal input / output for recording indicators
FAbsolute maximum ratings (Ta = 25_C)
3) Internal capacitors reduce the number of attach-
ments.
FRecommended operating conditions (Ta = 25_C)
583
1 page  
Audio ICs
FCircuit operation
(1) LINE and REC input circuits
The LINE and REC input circuits are configured as differ-
ential amplifiers, and the gain can be set to any desired
value using an external resistor. The input impedance is
determined by the external resistor.
BA3830S
(2) Bias circuit
A bias voltage of VCC / 2 is applied to each of the circuits.
Since the output stage uses a push-pull configuration, a
stable bias source can be obtained.
(3) BPF circuit
This is a circuit that selects the required frequency com-
ponent from the input signal and amplifies it. With this
configuration, no external capacitor is needed. In addi-
tion, the center frequency is set based on the current, so
f01 and f02 to f06 can be set individually, using separate ex-
ternal resistors (pins1 and 2).
Q is set to 4.5V (Typ.).
587
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet BA3830S.PDF ] | |
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