Datasheet Details
- Part number
- BU8874
- Manufacturer
- ROHM ↗
- File Size
- 180.42 KB
- Datasheet
- BU8874_Rohm.pdf
- Description
- DTMF receiver for telephones
BU8874 Description
Communication ICs DTMF receiver for telephones BU8874 / BU8874F The BU8874 and BU8874F are DTMF receiver ICs developed for use in telephone answering.
203
Communication ICs
FInput / output circuits INPUT PWDN
BU8874 / BU8874F
OSC
ACK
SD ESt
204
Communication ICs
FElectrical characteristics (.
BU8874 Features
* 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
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