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L9214A 데이터 시트보기 (PDF) - Agere -> LSI Corporation
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L9214A
Low-Cost Ringing SLIC
Agere -> LSI Corporation
L9214A Datasheet PDF : 46 Pages
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Preliminary Data Sheet
October 2001
Architecture Diagram
L9214A/G
Low-Cost Ringing SLIC
I
REF
VITR
TXI
ITR
VTX
PT
PR
AGND V
CC
BGND V
BAT2
V
BAT1
I
PROG
NSTAT
RTFLT DCOUT
POWER/BATTERY SWITCH
X20
AAC
REFERENCE
CIRCUIT
–
AX
+
(ITR/308)
V
REF
CURRENT
LIMIT
AND
INRUSH
CONTROL
RING
TRIP
LOOP
CLOSURE
VTX
RECTIFIER
X1
COMMON-
MODE
CURRENT
DETECTOR
ICM
TRGDET
CF2
ITR
ITR
RFT
18
Ω
TIP/RING
CURRENT
SENSE
RFR
18
Ω
–
+
V
BAT1
V
BAT2
+
–
V
BAT1
V
BAT2
X1
ac INTERFACE
–
GAIN
+
9214A GAIN = 4
PARALLEL
DATA
INTERFACE
9214G GAIN = 1
CF1
FB2
FB1
RCVN
RCVP
B0 B1 B2 B3
Figure 1. Architecture Diagram
12-3530.C (F)
Agere Systems Inc.
7
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