ATTL7554BP Agere Systems, ATTL7554BP Datasheet - Page 14

• Manufacturer Part Number: ATTL7554BP
• Description: L7554 Low-Power SLIC
• Manufacturer: Agere Systems

L7554 Low-Power SLIC
Applications
14
RING
TIP R
V
402
RING
20
20
R
250 V PROT
R
PT
TS1
PR
V
BAT
V
0.27 µF
CC
274 k
C
R
RTS2
TS2
66.8 k
0.1 µF
24.9 k
R
R
C
PROG
LCTH
RELAY
CC
L7581
0.022 µF
2.0 M
2.0 M
Figure 11. Basic Loop Start Application Circuit Using T7513 Type Codec
R
R
C
TSP
TSN
RTS1
14
12
30
16
32
31
8
RTSP
RTSN
DCOUT
LCTH
V
PT
PR
3
CC
I
PROG
18
CF2
Figure 12. Ground Start Application Circuit
0.47 µF
APPLICATION CIRCUIT
15
V
V
BAT
BAT
C
F1
19
LOOP START
CF1
V
REG
0.1 µF
0.1 µF
L7554
C
C
SLIC
AGND
24
F2
BAT
25
AGND
27
BGND
NRDET
RCVN
RGDET
RCVP
VITR
NLC
V
TXI
B2 35
B1
B0
ICM
TX
29
11
10
36
23
34
33
20
9
86.6 k
22
21
SUPERVISION
CONTROL
R
INPUTS
T1
OUTPUTS
CB2
0.1 µF
R
20.0 k
0.47 µF
CICM
GP
48.7 k
18.7 k
RGDET
82.5 k
R
100 k
RICM2
28.0 k
R
RCV
T2
R
HB1
C
330 pF
GP
VFXIP
VFXIN
Lucent Technologies Inc.
V
CC
28.0 k
PWRON
GSR
PWROP
R
–
+
X
CODEC
T7513
March 1997
CLKSEL
Data Sheet
GSX
FSR
FSX
MC
DX
DR
A/µ
PD
CONTROL
HIGHWAY
SYNCH
CLOCK
INPUTS
AND
12-2573 (C)
12-2821 (C)
PCM