Datasheet > AM79578-4JC

AM79578-4JC

更新时间： 2024-11-29 23:29:59

品牌	Logo	应用领域
其他 - ETC		电池电信集成电路
页数	文件大小	规格书
20页	279K
描述
Telecommunication IC

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中文翻译

获取价格

数据手册

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AM79578-4JC 数据手册

Am79578

Subscriber Line Interface Circuit

DISTINCTIVE CHARACTERISTICS

Programmable constant-resistance feed

Programmable loop-detect threshold

Two-wire impedance set by single external

impedance

Polarity reversal feature

Tip Open state for ground-start lines

Test relay driver

On-chip switching regulator for low-power

dissipation

Programmable Current Limit (CLP)

Ground-key detector

On-hook transmission

High Open Circuit state (HOC)

BLOCK DIAGRAM

(TIP)

RINGOUT

TESTOUT

Ring Relay Driver

Test Relay Driver

Ground-Key

Detector

HPA

Input Decoder

and Control

Two-Wire

Interface

HPB

DET

VTX

RSN

Signal

Transmission

Off-Hook

Detector

B(RING)

Power-Feed

Controller

RDC

CLP

CAS

Ring-Trip Detector

VREG

VBAT

BGND

Switching

Regulator

QBAT

VCC VEE

CHS

CHCLK

AGND

21777A-001

Publication# 080212 Rev: C Amendment: /0

Issue Date: October 1999

12 3 4 5 6 7...20

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