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ATTL7554BP-TR Datasheet(PDF) 3 Page - Agere Systems

Part # ATTL7554BP-TR
Description  L7554 Low-Power SLIC
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Manufacturer  AGERE [Agere Systems]
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ATTL7554BP-TR Datasheet(HTML) 3 Page - Agere Systems

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Lucent Technologies Inc.
3
Data Sheet
March 1997
L7554 Low-Power SLIC
Description (continued)
12-2569 (C)
Figure 1. Functional Diagram
B0
B1
+
+
–1 V/24 mA
+
+
+
A = 4
A = –4
POWER CONDITIONING & REFERENCE
PT
PR
dc RESISTANCE
ADJUST
DCR
ICM
RTSN
RTSP
LCTH
RING GROUND
DETECTOR
RING TRIP DETECTOR
LOOP CLOSURE DETECTOR
BATTERY FEED
STATE CONTROL
SPARE
OP AMP
DCOUT
VITR
RCVP
RCVN
XMT
SN
NLC
RGDET
NRDET
1
B2
9.6
VTX
TXI
0.1 µF
CEXTERNAL
3
RECTIFIER


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