* 1) Dynamic range of 45dB. (internal AGC) 2) Power down mode. 3) 4-bit binary serial data output. 4) Guard time can be controlled through host microcontroller. 5) Input pins equipped with hysteresis. (ACK pin) FBlock diagram 6) 4.19MHz crystal resonator can be used. 7) 8-pin DIP package. (BU8874) 2
BU8874
180.42 KB
Dtmf receiver for telephones.
Communication ICs
DTMF receiver for telephones
BU8874 / BU8874F
The BU8874 and BU8874F are DTMF receiver ICs developed for use in telephone answering.
📁 Related Datasheet
BU8871F - DTMF receiver for telephones
(Rohm)
Communication ICs
DTMF receiver for telephones
BU8871F
The BU8871F is a DTMF receiver ICs developed for use in telephone answering machines, and conv.
BU8872 - DTMF receiver for telephones
(Rohm)
Communication ICs
DTMF receiver for telephones
BU8872 / BU8872FS
The BU8872 and BU8872FS are DTMF receiver ICs developed for use in telephone answeri.
BU8872FS - DTMF receiver for telephones
(Rohm)
Communication ICs
DTMF receiver for telephones
BU8872 / BU8872FS
The BU8872 and BU8872FS are DTMF receiver ICs developed for use in telephone answeri.
BU8874F - DTMF receiver for telephones
(Rohm)
Communication ICs
DTMF receiver for telephones
BU8874 / BU8874F
The BU8874 and BU8874F are DTMF receiver ICs developed for use in telephone answering.
BU8877 - Call Progress Tone Decoder
(ETC)
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99W121A
Call Progress Tone Decoder for Telephone
BU8877/F
Description The BU8877 and BU8877F are ICs that detect dial tones fr.
BU8877F - Call Progress Tone Decoder
(ETC)
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99W121A
Call Progress Tone Decoder for Telephone
BU8877/F
Description The BU8877 and BU8877F are ICs that detect dial tones fr.
BU8899GU - Sound Generator
(Rohm)
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Appendix
Notes
No technical content pages of.
BU800 - NPN Transistor
(INCHANGE)
isc Silicon NPN Power Transistor
DESCRIPTION ·High Breakdown Voltage-
: VCBO= 1500V (Min) ·Collector-Emitter Saturation Voltage-
: VCE(sat)= 5.0V(Max.
