Data Sheet
July 2001
L9310 Line Interface and Line Access Circuit
Full-Feature SLIC, Ringing Relay, and Test Access Device
Architecture
VITR
LCF
LCTH
RESET NSTAT LATCH B3 B2 B1 B0 V
PROG
V
DD
DGND
+5V
D
PARALLEL DATA INTERFACE
SWITCHHOOK
V
REF
WINDOW
COMPARATOR
IN
TXN
TXI
–
AAC
+
FB
RB
+
VTX
ITR
TRNG
SW3
60
Ω
PT
SW1
18
Ω
VITR
TESTLEV
TEST
V
REF
VTX
PR
SW2
18
Ω
RTS
RING TRIP
DETECTOR
RSW
SW4
15
Ω
RRING
+5V
A
V
BAT
RT
V
BAT
V
BAT
SCAN
V
BAT
BGND
SCAN
CLAMP
BGND
ITR
BGND
ITR/325
RFT
V
BAT
ITR
TIP/RING
CURRENT
SENSE
RFR
SCAN
&
RING GND
DETECTOR
V
BAT
BGND
AX
(1 V/50 mA)
–
2.35 V
BANDGAP
REFERENCE
VTX
2.35 V
V
REF
CF2
ILC
BGND
+
OUT AT
–
ac
INTERFACE
ac
IN
ILC
REF
RT
CONTROL
CURRENT LIMITER
AND
INRUSH CONTROL
REF
CF2
TESTSIG
PPMOUT
PPMIN
RCVP
RCVN
FB1
FBRB
x1
dc
x1
CF1
OVH
CF2
+
OUT AR
–
FB
FB2
V
CC
A
GND
TRGDET
ICM
V
BAT2
/PWR
V
BAT1
V
BAT1
BGND
BGND
12-3523 (F)
Figure 1. Architecture Diagram
Agere Systems Inc.
9
AGERE [ AGERE SYSTEMS ]
