HC5503 Intersil Corporation, HC5503 Datasheet - Page 15

• Manufacturer Part Number: HC5503
• Description: Low Cost 24V SLIC For PABX/Key Systems
• Manufacturer: Intersil Corporation

Application Circuit
NOTES:
Typical Component Values:
C
C
C
C
C
line length.
R
6. R
7. Secondary protection diode bridge recommended is a 2A, 200V type.
8. All grounds (AG, BG, and DG) must be applied before V
9. Application shows Ring Injected Ringing, Balanced or Tip injected configuration may be used.
1
2
3
5
S1
B1
, C
= 0.33 F, 20%, 20V.
= 1.0 F, 10%, 20V.
= C
to run separate grounds off a line card, the AG must be applied first.
RING
= C
= R
INPUT VOLTAGE
5
TO LESS THAN
6
TIP
PROTECTION
sets the 2-wire to 4-wire gain. R
MUST LIMIT
4
= 0.01 F, 30V.
PRIMARY
S2
B2
= 0.47 F, 20%, 30V.
450V
Z1
K
= 0.1 F, 200V typically, depending on V
= 150 (1% absolute value).
1A
R
S1
C
S1
K
1B
PTC
15
D
D
V
2
4
-24V
BAT
C
R
D
S2
S2
5
5
= 150k then A
R
B1
D
D
1
3
+5V
R
B2
FIGURE 10. -24V APPLICATION CIRCUIT
-24V
V
K
BAT
V
1
-24V
BAT
10
11
12
2
4
3
RING
2-4
-BAT
RD
TIP
TIP FEED
RING FEED
RING FEED SENSE
RING
CC
= 0dB. R
13
16
and
or V
SHD
C
5
HC5503
BAT
BGND
5
14
. Failure to do so may result in premature failure of the part. If a user wishes
(PINOUT FOR PLCC)
= 75k then A
SYSTEM CONTROLLER
HC5503
18
DGND
PD
R
R
R
R
R
D
Z
PTC used as ring generator ballast.
U1
1
S1
1
2
3
4
1
7
, D
= 250V to 350V transient protection.
= 10k , 1%, 1/4W.
= 24.9k , 1%, 1/4W.
= R
= 200k , 1%, 1/4W.
= R
2
2-4
5
, D
9
AGND
RS
S2
= 150k , 1%, 1/4W.
3
27
= -6.0dB.
, D
= 1k , 1%, 1/4W.
C
6
19
4
, D
V
RC
CC
RX
5
T
C
C
5
X
V
+5V
1
2
= 1N40007, 100V, 3A.
CC
25
28
6
26
C
R
2
C
3
3
C
4
R
4
C
R
1
R
2
R
1
5
CODEC/FILTER
(NOTE 6)
U2
V
V
OUT
IN