ATTL7554BP 查看數據表（PDF） - Agere -> LSI Corporation

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ATTL7554BP

L7554 Low-Power SLIC

Agere -> LSI Corporation 

Data Sheet

March 1997

Description (continued)

L7554 Low-Power SLIC

POWER CONDITIONING & REFERENCE

–

–1 V/24 mA

+

RECTIFIER 3

DCOUT

VTX

TXI

0.1 µF

CEXTERNAL

9.6 VITR

SN

PT

A=4

–

SPARE

OP AMP +

XMT

PR

A = –4

DCR

dc RESISTANCE

ADJUST

LOOP CLOSURE DETECTOR

LCTH

RTSP

RTSN

ICM

RING TRIP DETECTOR

RING GROUND

DETECTOR

RCVN

1

RCVP

BATTERY FEED

STATE CONTROL

+

–

B0

B1

B2

NLC

+

NRDET

–

RGDET

Figure 1. Functional Diagram

12-2569 (C)

Lucent Technologies Inc.

3

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