hc5523 Intersil Corporation, hc5523 Datasheet - Page 20

• Manufacturer Part Number: hc5523
• Description: Lssgr/tr57 Co/loop Carrier Slic With Low Power Standby
• Manufacturer: Intersil Corporation

Application Circuit
NOTES:
31. It is recommended that the anodes of D
32. To meet the specified 25dB 2-wire return loss at 200Hz, C
(V
BAT
PTC
PTC
RINGING
R
+ 90V
RT
RING
C
Surgector SGT27S10
R
TIP
RMS
TC
F1
D
, C
Relay Relay, 2C Contacts, 5V or 12V Coil
1
, R
)
C
C
PTC Polyswitch TR600-150
C
R
- D
DC
RC
U1 SLIC (Subscriber Line Interface Circuit)
U2 Combination CODEC/Filter e.g.
HP
D
3
RT
F2
5
6
HC5526
CD22354A or Programmable CODEC/
Filter, e.g. SLAC
1.5µF, 20%, 10V
10nF, 20%, 100V (Note 2)
0.39µF, 20%, 100V
2200pF, 20%, 100V
IN4007 Diode
Diode, 1N4454
Line Resistor, 20Ω, 1% Match, 2 W
Carbon column resistor or thick film on
ceramic
+5V
12V
OR
20
R
R
R
D
D
C
F1
F2
4
3
4
RT
NOTE 31
K
Surgector
V
G
BAT
D
RELAY
R
R
5
3
1
2
D
A
and D
6
D
D
1
2
4
be shorted to ground through a battery referenced surgector (SGT27S10).
FIGURE 21. APPLICATION CIRCUIT
-5V
V
BAT
C
C
R
RC
-5V
TC
D
R
HP
SG
needs to be 20nF, 20%, 100V.
HC5523
28 RINGX
4 V
6 V
5 RINGRLY
21 HPT
22 RD
23 DT
25 DR
27 TIPX
2 BGND
7 R
CC
BAT
SG
R
DC1
C
HP
, R
R
(NOTE 32)
1
U
R
R
R
R
R
DC2
, R
1
R
R
R
SG
R
R
RX
RT
FB
TX
B
D
T
3
2
4
200kΩ, 5%, 1/4W
910kΩ, 5%, 1/4W
1.2MΩ, 5%, 1/4W
18.7kΩ,1%, 1/4W
39kΩ, 5%, 1/4W
41.2kΩ, 5%, 1/4W
20.0kΩ, 1%, 1/4W
280kΩ, 1%, 1/4W
562kΩ, 1%, 1/4W
20kΩ, 1%, 1/4W
150Ω, 5%, 2W
V
V
BAT
BAT
AGND 15
HPR 20
RSN 16
DET 11
R
V
V
C1 13
C2 12
DC
TX
EE
= -28V, R
= -48V, R
E
E
O
1
19
18
14
9
8
SG
SG
-5V
R
= ∞
= 21.4kΩ, 1/4W 5%
DC2
R
T
R
R
TX
R
DC1
C
RX
R
DC
B
CODEC/FILTER
U
R
+
-
FB
2