U4091BM-RFNY Datasheet

IC型號(hào)：
U4091BM-RFNY
PDF描述：
Telephone Multifunction Circuit, PDSO44, SSOP-44
文件大小：
502.47KB
PDF頁(yè)數(shù)：
38頁(yè)
芯片廠家：
ATMEL

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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. 4666B鈥揅ORD鈥?8/04

型號(hào)

版本

描述

廠商

下載
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Monolithic Integrated Feature Phone Circuit

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Programmable Telephone Audio Processor

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U4090B-N [Updated 9/03. 34 Pages]

ETC

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U4090B-P [Updated 9/03. 34 Pages]

ETC

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Multi-standard feature phone circuit with voice switch

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U4091BM-N [Updated 2/03. 38 Pages] Multi-standard feature ph...

ETC

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英文版

PROGRAMMABLE TELEPHONE AUDIO PROCESSOR

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U4091BM-R

英文版

PROGRAMMABLE TELEPHONE AUDIO PROCESSOR

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Telephone Circuit (Support)

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U4091BM-RFNY Datasheet

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