MH88400-1 查看數據表（PDF） - Mitel Networks
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MH88400-1 Datasheet PDF : 10 Pages
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Preliminary Information
MH88400
DC Electrical Characteristics †
Characteristics
Sym Min Typ‡ Max Units
Test Conditions
1
Supply Current
2
Power Consumption
IDD
15
mA
PC
75
mW
3
Low Level Output Voltage
RVLC High level Output Voltage
4 SHK Low Level Input Voltage
5
High level Input Voltage
High Level Input Current
Low Level Input Current
VOL
VOH 3.8
VIL
VIH
3.5
IIH
IIL
0.4
V
V
0.9
V
V
0.6 mΑ
1
µA
† DC 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.
Note: See figure 3a and 3b.
VDD = 5.0V, ILoop=40mA
VDD = -5.0V,ILoop=40mA
IOL = 1.0mA
IOH = 1.0mA
VIH = 5.0V
VIL = 0.0V
AC Electrical Characteristics† - MH88400 All Variants
Characteristics
Sym Min Typ‡ Max
Units
Test Conditions
1 Input Impedance VR
2 Output Impedance at VX
3 Transmit Gain (2-Wire to VX)
4 Frequency Response Gain
(relative to Gain @ 1kHz)
5 Receive Gain (VR to 2-wire)
47
kΩ
5
Ω
dB Input 0.5V at 1kHz off-
-0.4
hook
-2.4
dB 300 Hz
-3.0
dB 3400 Hz
dB Input 0.5V at 1kHz
3.5
6 Frequency Response Gain
(relative to Gain @ 1kHz)
0
dB 300 Hz
0
dB 3400 Hz
7 Signal Output Overload Level
at 2-Wire
at Vx
8 Total Harmonic Distortion
THD
at 2-wire
at VX
9 Power Supply Reject Ratio
PSRR
at 2-wire
at VX
-3.0
0.0
+2.0
-3.0
0.0
+2.0
0.9
1.2
35
10
dBm
dBm
dBm
dBm
dBm
dBm
%
%
dB
dB
THD <5% @ 1kHz
ILoop =10-40mA
VDD=4.5V
VDD=5.0V
VDD=5.5V
VDD=4.5V
VDD=5.0V
VDD=5.5V
Input 0.5V at 1kHz
DC loop = 1000Ω
VDD=5.0V
Ripple 0.1V,1kHz on
VDD
† 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 a “Weight” filter.
2-15
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