MH88422
DC Electrical Characteristics
†
Characteristics
1
2
3
RVLC
LC
Supply Current
Low Level Output Voltage
High Level Output Voltage
Low Level Input Voltage
High Level Input Voltage
Low Level Input Current
High Level Input Current
Sym.
I
DD
V
OL
V
OH
V
IL
V
IH
I
IL
I
IH
2.4
0.8
2.0
Data Sheet
Min.
Typ.
‡
1
Max.
5
0.4
Units
mA
V
V
V
V
µA
µA
Test Conditions
V
DD
= 5.0V, On-hook
I
OL
= 4mA
I
OH
= 0.4mA
-60
60
† Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated.
‡Typical figures are at 25°C with nominal + 5V supplies and are for design aid only.
V
IL
= 0.0V
V
IH
= 5.0V
AC Electrical Characteristics
†
- MH88422-2
Characteristics
1
Return Loss at 2-Wire
(Reference 600Ω)
Longitudinal to Metallic Balance
58
53
Metallic to Longitudinal Balance
60
40
3
Idle Channel Noise
at 2-Wire
at VX
4
Transmit Gain (2-Wire to Vx)
-1.4
5
6
7
8
9
Frequency Response Gain
(relative to Gain @ 1kHz)
Input Impedance VR
Output Impedance at VX
Receive Gain (VR to 2-Wire)
Frequency Response Gain (relative to
Gain @ 1kHz)
-1
-1
10
Signal Output Overload Level
at 2-Wire
at Vx
Total Harmonic Distortion
at 2-Wire
at Vx
THD
Sym.
ERL
Min.
20
14
Typ.
‡
30
19
60
55
Max.
Units
dB
dB
dB
dB
dB
dB
Test Conditions
Test circuit as Fig 7
500-2500Hz
200-3200Hz
Test circuit as Fig 8
200-1000Hz
1000-3000Hz
Test circuit as Fig 9
200-1000Hz
1000-4000Hz
SFRL
2
Nc
13
13
-0.4
-1.3
-0.5
47k
10
2.5
3.5
4.6
20
20
0.9
0.4
0.9
dBrnC
dBrnC
dB
dB
dB
Ω
Ω
dB
Test circuit as Fig 6 Input
0.5V at 1kHz
Test circuit as Fig 5
Input 0.5V @ 1kHz
Off- Hook
200Hz
3400Hz
-1.6
-2.1
0
0
+3.0
+3.0
1.2
1.2
+1
+1
dB
dB
dBm
dBm
300Hz
3400Hz
THD< 5% @1kHz
I
Loop
= 20 to 40mA
Input -3.5dBm at 1kHz
+2.0
+2.0
11
2.5
2.0
%
%
7
Zarlink Semiconductor Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
