MH88400
AC Electrical Characteristics
†
- MH88400-1
Characteristics
1
2
2-Wire input Impedance
(200Ω + 820Ω //115nF)
Return Loss at 2-Wire
(200Ω + 820Ω //115nF)
Longitudinal to Metallic Balance
Sym
Zin
RL
20
20
20
40
55
53
Nc
at 2-Wire
At VX
-84
-81
-78
Min
Typ
‡
900
22
24
26
65
60
60
Max
Preliminary Information
Units
Ω
dB
dB
dB
dB
dB
dB
dBmp
dBmp
Test Conditions
@ 1kHz
300-500Hz
500-2500Hz
2500-3400Hz
50-300Hz
300-1000Hz
1000-4000Hz
3
4
Idle Channel Noise
† AC Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated.
‡ Typical figures are at 25°C and are for design aid only.
Note 1: All of the above characteristics use a test circuit as per Figure 3.
Note 2: All of the above test conditions use a test source impedance which matches the device’s impedance.
Note 3: dBm is referenced to 600Ω unless otherwise stated.
Note 4: THD is measured with “Weight” filter.
AC Electrical Characteristics
†
- MH88400-2
Characteristics
1
2
3
4
2-Wire Input Impedance -2 (600Ω)
Return Loss at 2-Wire
(Reference -2 =600Ω)
Longitudinal to Metallic Balance
Idle Channel Noise
at 2-Wire
at VX
Nc
-84
-81
-78
dBrnp
dBrnp
Sym
ZIn
RL
20
50
Min
Typ
‡
600
24
60
Max
Units
Ω
dB
dB
Test Conditions
@ 1kHz
300-3400Hz
300-3400Hz
† AC Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated.
‡ Typical figures are at 25°C and are for design aid only.
AC Electrical Characteristics
†
- MH88400-3
Characteristics
1
2
3
4
2-Wire Input Impedance
(370Ω + 620Ω // 310nF)
Return Loss at 2-Wire
(370Ω + 620Ω // 310nF)
Longitudinal to Metallic Balance
Idle Channel Noise
at 2-Wire
at VX
Nc
-80
-80
-70
-70
dBmp
dBmp
Sym
Zin
RL
18
50
Min
Typ
‡
700
20
60
Max
Units
Ω
dB
dB
Test Conditions
@ 1kHz
200-2400Hz
300-3400Hz
† AC Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated.
‡ Typical figures are at 25°C and are for design aid only.
Note 1: All of the above characteristics use a test circuit as per Figure 3.
Note 2: All of the above test conditions use a test source impedance which matches the device’s impedance.
Note 3: dBm is referenced to 600Ω unless otherwise stated.
Note 4: THD is measured with “weight” filter.
2-16
MITEL [ MITEL NETWORKS CORPORATION ]
