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TELEFUNKEN Semiconductors

U3810BM

Multi Standard Feature Phone Integrated Circuit

Description

The U3810BM multi-standard feature phone circuit is

designed to be used with a microcontroller using a 2-wire

serial bus. It performs all speech and line interface

functions required in an electronic telephone set: the

ringing function with switching regulator and melody

generator, the DTMF dialling, the loudhearing with

antilarsen and antidistortion systems, a power supply, a

clock and a reset for the microcontroller. Transmit, receive

and loudhearing gains control / AGC range / DTMF

frequencies, pre-emphasis and level / melody generator,

and mutes are programmable through the serial bus.

Block diagramm

Speech

circuit

Serial bus

Loudhearing

LH

and

Tone ringing

DTMF

dialer

Tone

ringer

MC

with

EEPROM

93 7600 e

Figure 1

Applications

D

Feature phones

D

Answering machines

D

Fax machines

Benefits

D

Complete system integration of analog signal

processing and digital control circuitry

D

One IC for various PTT standards, e.g. programmable

specification via

m

C

D

Only three low-cost transducers needed (instead of

four)

Rev. A1: 19.01.1996

1 (31)

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U3810BM相關(guān)型號PDF文件下載

• 型號
  版本
  描述
  廠商
  下載
• U3810BM
  英文版
  Multi Standard Feature Phone Integrated Circuit
  TEMIC
  U3810BM
• U3810BM
  英文版
  Multi Standard Feature Phone Integrated Circuit
  TEMIC [TEM...
  U3810BM
• U3810BM-FN
  英文版
  Telephone Multifunction Circuit, PDSO44, SSO-44
  TEMIC
  U3810BM-FN

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