HC5520
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
Ω
2-Wire Terminating Impedance with 0dB transmit and receive gain.
(Continued)
Electrical Specifications
CONDITIONS
PARAMETER
V
RING
V
TIP
V
RING
MODE
normal
reverse
normal
reverse
normal
reverse
LOAD
Open
Open
Open
V
BAT
-48V
-42V
-42V
OTHER
CONDITIONS
FREQ/
LEVEL
MIN
-45.54
-6.00
-5.00
-40.00
-39.54
-5.00
TYP
-43.80
-4.26
-3.68
-38.12
-38.34
-3.78
MAX
-42.50
-2.00
-2.46
-37.00
-37.00
-2.00
UNITS
V
V
V
V
V
V
BATTERY FEED CHARACTERISTICS - LOOP CURRENT (Figure 5)
Normal Loop Current
Normal Loop Current
Short Circuit Loop Current Limit
normal
reverse
normal
reverse
normal
reverse
1800Ω
1800Ω
100Ω
-42V
-48V
-48V
14.5
14.5
18.0
18.0
22.0
22.0
16.5
16.3
18.8
18.6
26.4
27.0
19.0
19.0
22.0
22.0
42.0
42.0
mA
mA
mA
mA
mA
mA
LOOP SUPERVISION - SWITCH HOOK DETECTION (Figure 6)
Off-Hook Detection
normal
reverse
-48V
2.4K
4.6K
9K
Ω
LOOP SUPERVISION - DIAL PULSE DISTORTION (Figure 7)
Dial Pulse Distortion
Dial Pulse Distortion
normal
normal
100Ω
1800Ω
-58V
-42V
25
o
C
25
o
C
-
-
0.1
0.1
3
3
%
%
LOOP SUPERVISION - RING TRIP DETECTION (Figure 8)
Ring Trip Detect
Ring Trip Non-Detect
Ringing
Ringing
1800Ω
+1REN
3REN//
20KΩ
-42V
60V
RMS
-58V
90V
RMS
-
20K
-
-
150
-
ms
Ω
LOOP SUPERVISION - POLARITY REVERSAL TIME (Figure 9)
Polarity Reversal Time
normal
to
reverse
reverse
to
normal
1800Ω
-42V
-
0.04
10
ms
Polarity Reversal Time
1800Ω
-42V
-
0.04
10
ms
LOOP SUPERVISION - DIGITAL INTERFACE
Input Low Voltage, V
IL
Input High Voltage, V
IH
Input Low Current, I
IL
Input High Current, I
IH
Output Low Voltage, V
OL
Output High Voltage, V
OH
Relay Driver Output Low Voltage, V
OL
Relay Driver Output High Current, I
OH
All Digital Inputs
All Digital Inputs
AGND < V
IN
< V
IL
V
IH
< V
IN
< V
CC
1 LSTTL Load
1 LSTTL Load
V
CC
= 4.75V, Load = 35mA
V
CC
= 5.25V
-
2.0
-20
-
-
2.4
-
-
-
-
-
0
-
-
0.4
-
0.8
-
-
+10
0.4
-
0.8
10
V
V
µA
µA
V
V
V
µA
3
HARRIS [ HARRIS CORPORATION ]
