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L8575 Datasheet(PDF) 4 Page - Agere Systems

Part # L8575
Description  Dual-Resistive,Low-Cost Subscriber Line Interface Circuit(SLIC)
PDF  36 Pages
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Manufacturer  AGERE [Agere Systems]
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L8575 Datasheet(HTML) 4 Page - Agere Systems

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L8575
Advance Data Sheet
Dual-Resistive, Low-Cost SLIC
March 1997
4
Lucent Technologies Inc.
Description (continued)
12-3304(F).ar1
Figure 1. Functional Diagram
RELAY
DRIVER
RELAY
DRIVER
SERIAL DATA INTERFACE,
LATCHES, AND LOGIC
RELAY
DRIVER
RELAY
DRIVER
AXA
RING-TRIP
DETECTOR A
RECEIVE
INTERFACE AND
BATTERY NOISE
CANCELLATION A
–
+
CONTROL
DETECTORS
VBAT
SWITCHHOOK
AND
FAULT DETECTORS A
VBAT
TIP CURRENT
SOURCE A
RING CURRENT
SOURCE A
AXB
–
+
VBAT
SWITCHHOOK
AND
FAULT DETECTORS B
RING-TRIP
DETECTOR B
RECEIVE
INTERFACE AND
BATTERY NOISE
CANCELLATION B
VBAT
TIP CURRENT
SOURCE B
RING CURRENT
SOURCE B
RDDA
RDRA
DGND VDDD
DI
DO
CLK
EN
RDTB
RDRB
TSA
RSA
PTA
RTPA
RTNA
PRA
TSB
RSB
PTB
RTPB
RTNB
PRB
RGBNB
CBNB
IRPB
VRNB
XMTB
CFLTB
RGBNA
CBNA
IRPA
VRNA
VDDA
AGND
VBAT
XMTA
CFLTA
NRTB
VBAT
TSTB
PDB
VBAT
TSTA
PDA
NRTA
NLCA
NFLTA
RELAY
DRIVER
RDRA
+5D
RELAY
DRIVER
RDDB
+5 A
VBAT
NPLTB
NLCB



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