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參數(shù)資料
| 型號： | HC5520CM |
| 廠商： | Harris Corporation |
| 英文描述： | CO/PABX Polarity Reversal Subscriber Line Interface Circuit |
| 中文描述： | 二氧化碳/極性反轉(zhuǎn)交換機用戶線接口電路 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 191K |
| 代理商： | HC5520CM |
3
V
RING
normal
reverse
Open
-48V
-45.54
-6.00
-43.80
-4.26
-42.50
-2.00
V
V
V
TIP
normal
reverse
Open
-42V
-5.00
-40.00
-3.68
-38.12
-2.46
-37.00
V
V
V
RING
normal
reverse
Open
-42V
-39.54
-5.00
-38.34
-3.78
-37.00
-2.00
V
V
BATTERY FEED CHARACTERISTICS - LOOP CURRENT (Figure 5)
Normal Loop Current
normal
reverse
1800
-42V
14.5
14.5
16.5
16.3
19.0
19.0
mA
mA
Normal Loop Current
normal
reverse
1800
-48V
18.0
18.0
18.8
18.6
22.0
22.0
mA
mA
Short Circuit Loop Current Limit
normal
reverse
100
-48V
22.0
22.0
26.4
27.0
42.0
42.0
mA
mA
LOOP SUPERVISION - SWITCH HOOK DETECTION (Figure 6)
Off-Hook Detection
normal
reverse
-48V
2.4K
4.6K
9K
LOOP SUPERVISION - DIAL PULSE DISTORTION (Figure 7)
Dial Pulse Distortion
normal
100
-58V
25
o
C
-
0.1
3
%
Dial Pulse Distortion
normal
1800
-42V
25
o
C
-
0.1
3
%
LOOP SUPERVISION - RING TRIP DETECTION (Figure 8)
Ring Trip Detect
Ringing
1800
+1REN
-42V
60V
RMS
-
-
150
ms
Ring Trip Non-Detect
Ringing
3REN//
20K
-58V
90V
RMS
20K
-
-
LOOP SUPERVISION - POLARITY REVERSAL TIME (Figure 9)
Polarity Reversal Time
normal
to
reverse
1800
-42V
-
0.04
10
ms
Polarity Reversal Time
reverse
to
normal
1800
-42V
-
0.04
10
ms
LOOP SUPERVISION - DIGITAL INTERFACE
Input Low Voltage, V
IL
All Digital Inputs
-
-
0.8
V
Input High Voltage, V
IH
All Digital Inputs
2.0
-
-
V
Input Low Current, I
IL
AGND < V
IN
< V
IL
-20
-
-
μ
A
Input High Current, I
IH
V
IH
< V
IN
< V
CC
-
0
+10
μ
A
Output Low Voltage, V
OL
1 LSTTL Load
-
-
0.4
V
Output High Voltage, V
OH
1 LSTTL Load
2.4
-
-
V
Relay Driver Output Low Voltage, V
OL
V
CC
= 4.75V, Load = 35mA
-
0.4
0.8
V
Relay Driver Output High Current, I
OH
V
CC
= 5.25V
-
-
10
μ
A
Electrical Specifications
Unless Otherwise Specified: Typical Parameters are at T
A
= 25
o
C, V
CC
= +5V, V
EE
= -5V, V
BAT
= -48V,
AGND = BGND = RGND = 0V, Min-Max Parameters are Over Power Supply and Operating Temperature Range. All Transmission Parame-
ters are Specified at 600
2-Wire Terminating Impedance with 0dB transmit and receive gain.
(Continued)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
MODE
LOAD
V
BAT
OTHER
CONDITIONS
FREQ/
LEVEL
HC5520
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