U4091BM-N Datasheet

IC型號：
U4091BM-N
PDF描述：
U4091BM-N [Updated 2/03. 38 Pages] Multi-standard feature ph...
文件大小：
659.08KB
PDF頁數(shù)：
38頁
芯片廠家：
ETC

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Features

鈥?/div>

Speech Circuit with Anti-clipping

Tone-ringer Interface with DC/DC Converter

Speaker Amplifier with Anti-distortion

Power-supply Management (Regulated, Unregulated) and a Special Supply for Electret

Microphone

鈥?/div>

Voice Switch

鈥?/div>

Interface for Answering Machine and Cordless Phone

Applications

鈥?/div>

Feature Phone

Answering Machine

Fax Machine

Speaker Phone

Cordless Phone

Programmable

Telephone

Audio

Processor

U4091BM-N

Benefits

鈥?/div>

No Piezoelectric Transducer for Tone Ringing Necessary

鈥?/div>

Complete System Integration of Analog Signal Processing on One Chip

鈥?/div>

Very Few External Components

Description

The programmable telephone audio processor U4091BM-N is a linear integrated cir-

cuit for use in feature phones, answering machines and fax machines. It contains the

speech circuit, tone-ringer interface with DC/DC converter, sidetone equivalent and

ear-protection rectifiers. The circuit is line-powered and contains all components nec-

essary for signal amplification and adaptation to the line. The U4091BM-N can also be

supplied via an external power supply. An integrated voice switch with loudspeaker

amplifier enables hands-free or loudhearing operation. With an anti-feedback function,

acoustic feedback during loudhearing can be reduced significantly. The generated

supply voltage is suitable for a wide range of peripheral circuits.

Rev. 4666A鈥揅ORD鈥?2/03

型號

版本

描述

廠商

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