L8575 查看數據表（PDF） - Agere -> LSI Corporation

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L8575

Dual-Resistive, Low-Cost Subscriber Line Interface Circuit (SLIC)

Agere -> LSI Corporation 

L8575

Dual-Resistive, Low-Cost SLIC

Advance Data Sheet

March 1997

Description (continued)

RDDA

RDRA

RDRA

DGND VDDD

DI DO CLK EN

RDTB

RDRB

RDDB

RELAY RELAY RELAY

DRIVER DRIVER DRIVER

SERIAL DATA INTERFACE,

+5D

LATCHES, AND LOGIC

RELAY RELAY RELAY

DRIVER DRIVER DRIVER

VBAT

SWITCHHOOK

AND

FAULT DETECTORS A

NFLTA

NLCA

CONTROL DETECTORS

TSA

RSA

–

AXA

+

PTA

RTPA

RTNA

RING-TRIP

DETECTOR A

NRTA

VBAT

PRA

VBAT

SWITCHHOOK

AND

FAULT DETECTORS B

NPLTB

NLCB VBAT

TIP CURRENT

SOURCE A

RING CURRENT

SOURCE A

TSB

RSB

PTB

RTPB

RTNB

PRB

–

AXB

+

TIP CURRENT

SOURCE B

RING-TRIP

DETECTOR B

NRTB

VBAT

+5 A

VBAT

VDDA

AGND VBAT

VBAT

RING CURRENT

SOURCE B

TSTA PDA

RECEIVE

INTERFACE AND

BATTERY NOISE

CANCELLATION A

TSTB PDB

RECEIVE

INTERFACE AND

BATTERY NOISE

CANCELLATION B

Figure 1. Functional Diagram

CFLTA

XMTA

VRNA

IRPA

CBNA

RGBNA

CFLTB

XMTB

VRNB

IRPB

CBNB

RGBNB

12-3304(F).ar1

4

Lucent Technologies Inc.

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