BU8871F

更新时间： 2024-02-21 17:04:39

品牌	Logo	应用领域
罗姆 - ROHM		电话
页数	文件大小	规格书
12页	217K
描述
DTMF receiver for telephones

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BU8871F 数据手册

Communication ICs

DTMF receiver for telephones

BU8871F

The BU8871F is a DTMF receiver ICs developed for use in telephone answering machines, and converts 16 different

types of DTMF signals into 4-bit binary serial data. It features a wide dynamic range, eliminating the need for an external

input amplifier. Expertise from a number of companies has been incorporated into these products to enable guard time

control through a host microcomputer.

FApplications

Telephone answering machines

FFeatures

1) Dynamic range of 45dB. (internal AGC)

2) 4-bit binary serial data output.

3) Guard time can be controlled through host microcon-

troller.

4) Input pins equipped with hysteresis. (ACK pin)

5) 4.19MHz crystal resonator can be used.

FBlock diagram

180

12 3 4 5 6 7...12

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型号	品牌	描述	获取价格	数据表
BU8871F-DX	ROHM	DTMF Signaling Circuit, PDSO18, SOP-18	获取价格
BU8871F-DXE1	ROHM	DTMF Signaling Circuit, PDSO18, SOP-18	获取价格
BU8871F-DXE2	ROHM	DTMF Signaling Circuit, PDSO18, SOP-18	获取价格
BU8871F-DXT1	ROHM	DTMF Signaling Circuit, PDSO18, SOP-18	获取价格
BU8871F-DXT2	ROHM	DTMF Signaling Circuit, PDSO18, SOP-18	获取价格
BU8871FE1	ROHM	TELECOM, DTMF SIGNALING CIRCUIT, PDSO18, SOP-18	获取价格