MH88634BV-4 데이터 시트보기 (PDF) - Mitel Networks
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MH88634BV-4 Datasheet PDF : 13 Pages
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MH88634B
Advance Information
AC Electrical Characteristics†
Characteristics
Symbol Min
1 2-wire Input Impedance
Zin
2 Return Loss at 2-wire
RL
3 Longitudinal to Metallic
Balance
4 Transhybrid Loss
5 Gain, 2 wire to TX
Relative Gain
6 Gain, Rx to 2 wire
Relative Gain
7 Input impedance at RX
8 Output impedance at TX
9 Signal Overload Level
at 2-wire
at TX
10 Total Harmonic Distortion
at 2-wire
at TX
THL
THD
20
58
55
53
20
-0.25
-0.3
-2.25
-0.3
4.0
1.7
11 Idle Channel Noise
NC
at 2-Wire
at TX
12 Power Supply Rejection Ratio PSRR
at 2-wire and TX
VCC
25
VEE
25
13 On-Hook Gain, 2-Wire to TX
-1
Relative to Off-Hook Gain
14 Met. to Long. Balance
Typ‡
600
900
29
60
60
58
27
0
0
-2
0
10
5
15
15
48
47
0
Max
0.25
0.3
-1.75
0.3
Units
Ω
dB
dB
dB
dB
dB
dB
dB
dB
dB
kΩ
Ω
dBm
dBm
Test Conditions
-2 Variant
-4 Variant
Test Circuit as Fig 6
200-3400 Hz
Test Circuit as Fig 7
200Hz
1000Hz
3400Hz
200-3400Hz
Test Circuit as Fig 4
1000Hz
200-3400Hz
Test Circuit as Fig 5
1000Hz
200-3400Hz
% THD < 5% @ 20mA
1.0
% Input 0.5V, 1kHz @
RX
1.0
% Input 0.5V, 1kHz @
Tip-Ring
16.5 dBrnC
16.5 dBrnC
Ripple 0.1V, 1kHz
dB
dB
1
dB Input 1000Hz @ 0.5V
Test Circuit as Fig. 8
-2 Variant
-4 Variant
60
62
40
48
55
62
40
48
200-1000Hz
1000-3400Hz
200-1000Hz
1000-3400Hz
15 Common Mode Rejection
CMRR 48
55
dB Test Circuit as Fig. 7
Ratio
1000Hz, FL = 0V,
ILoop = 25mA
† Electrical Characteristics are over recommended operating conditions unless otherwise stated.
‡ Typical figures are at 25°C with nominal 5V supplies and are of r design aid only.
2-272
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