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參數資料
| 型號： | HC5503CBZ96 |
| 廠商： | INTERSIL CORP |
| 元件分類： | 模擬傳輸電路 |
| 英文描述： | Low Cost 24V SLIC For PABX / Key Systems |
| 中文描述： | TELECOM-SLIC, PDSO24 |
| 封裝： | GREEN, PLASTIC, MS-013AD, SOIC-24 |
| 文件頁數： | 16/17頁 |
| 文件大?。?/td> | 386K |
| 代理商： | HC5503CBZ96 |
16
Application Circuit
NOTES:
6. R
5
sets the 2-wire to 4-wire gain. R
5
= 150k
then A
2-4
= 0dB. R
5
= 75k
then A
2-4
= -6.0dB.
7. Secondary protection diode bridge recommended is a 2A, 200V type.
8. All grounds (AG, BG, and DG) must be applied before V
CC
or V
BAT
. Failure to do so may result in premature failure of the part. If a user wishes
to run separate grounds off a line card, the AG must be applied first.
9. Application shows Ring Injected Ringing, Balanced or Tip injected configuration may be used.
FIGURE 10. -24V APPLICATION CIRCUIT
Typical Component Values:
C
1
= 0.33
μ
F, 20%, 20V.
C
2
= 1.0
μ
F, 10%, 20V.
C
3
= C
4
= 0.47
μ
F, 20%, 30V.
C
5
C
6
= 0.01
μ
F, 30V.
C
S1
= C
S2
= 0.1
μ
F, 200V typically, depending on V
RING
and line length.
R
B1
= R
B2
= 150 (1% absolute value).
R
S1
= R
S2
= 1k
, 1%, 1/4W
R
1
= 10k
, 1%, 1/4W .
R
2
= 24.9k
, 1%, 1/4W.
R
3
= R
5
= 150k
1%, 1/4W
.
R
4
= 200k
1%, 1/4W
D
1
, D
2
, D
3
, D
4
, D
5
= 1N40007, 100V, 3A.
Z
1
= 250V to 350V transient protection.
PTC used as ring generator ballast.
R
B1
R
B2
+5V
C
5
C
6
C
2
C
1
C
4
C
3
R
2
R
1
TIP
RING
V
CC
+5V
-24V
V
BAT
-24V
D
4
D
2
D
3
D
1
V
BAT
-24V
R
3
R
4
R
5
U2
V
OUT
24
5
22
4
23
6
12
11
10
9
8
13
15
7
16
21
C
S1
R
S1
C
S2
R
S2
PTC
K
1B
K
1A
K
1
D
5
V
SYSTEM CONTROLLER
CODEC/FILTER
V
IN
(NOTE 6)
RC
RS
SHD
RING
TIP
TIP FEED
RING FEED SENSE
RING FEED
HC5503
U1
PD
V
CC
C
2
C
1
RD
RX
T
X
AGND
DGND
BGND
-BAT
2
3
1
PRIMARY
PROTECTION
MUST LIMIT
INPUT VOLTAGE
TO LESS THAN
450V
Z1
HC5503
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