MH88435-P
AC Electrical Characteristics
†
Characteristics
11
Longitudinal to Metallic Balance
46
46
Metallic to Longitudinal Balance
60
40
12
Idle Channel Noise
at 2-Wire
at VX
at 2-Wire
at VX
13
Transmit Gain (2-Wire to VX)
(Terminated gain)
Off-Hook
(Voltage gain)
14
15
On-Hook
-1
-1
IMD
Preliminary Information
Sym
Min
Typ
‡
65
65
68
62
10
10
-80
-80
Max
Units
dB
dB
dB
dB
Test Conditions
Test circuit as Fig. 10
300-1000Hz
1000-3400Hz
Test circuit as Fig.11
200-1000Hz
1000-4000Hz
Cmess filter
300-3400Hz filter
Test circuit as Fig. 7
Input 0.5V @ 1kHz
LC = 0V
300Hz
3400Hz
I
LOOP
= 25-75mA
F1 = 1kHz at -6dBm
F2 = 800Hz at -6dBm
Total signal power =
-3dBm
I
LOOP
= 25-75mA
F1 = 1kHz at -6dBm
F2 = 800Hz at -6dBm
Total signal power =
-3dBm
Test circuit as Fig. 10
1-100Hz. Note 4
Test circuit as Fig. 10.
Note 4
Nc
20
20
dBrnC
dBrnC
dBm
dBm
dB
dB
+1
+1
dB
dB
dB
-1
0
0
+0.3
+0.2
60
+1
Frequency Response Gain
(relative to Gain @ 1kHz)
Intermodulation Distortion
products at VX and 2W
16
Distortion at VX due to near end
echo
(300Hz - 3400Hz bandwidth)
75
dB
17
18
Common Mode Rejection on 2 wire
at VX
Common Mode overload level
CMRR
CMOL
56
7
dB
Vrms
†Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated.
‡Typical figures are at 25°C with nominal +5V and are for design aid only.
Note 1: All of the above test conditions use a test source impedance which matches the device’s impedance.
Note 2: dBm is referenced to 600Ω unless otherwise stated.
Note 3: These parameters need to be taken into consideration when designing or specifying the power supply.
Variations from Standard AC Electrical Characteristics
(MH88437AD-PI/MH88437AS-PI) (-40˚C to 0˚C)
Characteristics
1
Frequency Response Gain
Sym
Min
Typ
-0.6
-0.65
Max
Units
dB
Test Conditions
300Hz (-40˚C to 0˚C)
2-48
MITEL [ MITEL NETWORKS CORPORATION ]
