Datasheet > AM79484-2JC

AM79484-2JC

更新时间： 2024-11-26 23:29:55

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	234K
描述
Telecommunication IC

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中文翻译

获取价格

数据手册

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AM79484-2JC 数据手册

Am79484

Subscriber Line Interface Circuit

DISTINCTIVE CHARACTERISTICS

Ideal for long-loop applications

Low standby power (45 mW)

–40 V to –58 V battery operation

On-hook transmission

Programmable constant-current feed

Programmable loop-detect threshold

Current gain = 200

Polarity reversal option available

On-chip Thermal Management (TMG) feature

Tip Open state for ground-start lines

Two-wire impedance set by single external

impedance

On-chip ring and test relay driver and relay

snubber circuits

BLOCK DIAGRAM

TMG

Relay

TESTOUT

Driver

Ring Relay

RINGOUT

Driver

A(TIP)

HPA

Ring-Trip

Detector

Input Decoder

and Control

Two-Wire

Interface

Ground-Key

Detector

HPB

Off-hook

Detector

DET

B(RING)

VTX

RSN

Signal

Transmission

Power-Feed

Controller

RDC

CAS

VBAT

BGND

VCC VNEG AGND/DGND

Publication# 080180 Rev: C Amendment: /0

Issue Date: May 1999

12 3 4 5 6 7...20

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