MH88437-P
AC Electrical Characteristics † (continued)
Characteristics
Sym
Min
Typ‡
Max Units
Test Conditions
11 Longitudinal to Metallic Balance
Nc
Test circuit (Figure 10)
300-1000Hz
1000-3400Hz
46
46
58
53
dB
dB
Metallic to Longitudinal Balance
Test circuit (Figure 11)
200-1000Hz
1000-4000Hz
60
40
dB
dB
12 Idle Channel Noise
at 2-Wire
at VX
at 2-Wire
at VX
15
15
-65
-65
20
20
dBrnC Cmess filter
dBrnC
dBm
300-3400Hz filter
dBm
13 Transmit Gain (2-Wire to VX)
Off-Hook
Test circuit (Figure 7)
Input 0.5V @ 1kHz
-1
0
0
+1
dB
dB
On-Hook
LC = 0V
14 Frequency Response Gain
(relative to Gain @ 1kHz)
-0.5
-0.5
0
0
0.5
0.5
dB
dB
300Hz
3400Hz
15 Intermodulation Distortion
products at VX and 2W
IMD
75
dB
dB
dB
ILOOP = 25-60mA
F1 = 1kHz at -6dBm
F2 = 800Hz at -6dBm
Total signal power =
-3dBm
16 Distortion at VX due to near end
echo
75
ILOOP = 25-60mA
F1 = 1kHz at -6dBm
F2 = 800Hz at -6dBm
Total signal power =
-3dBm
(300Hz - 3400Hz bandwidth)
17 Common Mode Rejection at VX
18 Common Mode overload
CMR
CML
50
Test circuit (Figure 10)
1-100Hz Note 4
100V
Vpk-pk Test circuit (Figure 10)
1-100Hz Note 4
† 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.
10
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