MH88614 Просмотр технического описания (PDF) - Mitel Networks
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MH88614 Datasheet PDF : 10 Pages
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MH88614
Advance Information
Recommended Operating Conditions
Characteristics
Sym Min Typ* Max Units
Comments
1
Operating Supply Voltage
2 Ringing Voltage
3 Message Voltage
4 Operating Temperature
VDD
VEE
VBat
VRING
4.75
-4.75
-22
50
5.00
-5.00
-48
90
5.25
-5.25
-60
100
V
V
V
VRMS
VMSG
-100 -130
V
TO
0
25
70
°C
17 to 55 Hz
on a DC bias of
-22V to -60V
VDC + AC PEAK
VBat ILoop
-48V 45mA
* Typical figures are at 25°C with nominal+ 5V supplies and are for design aid only: not guaranteed and not subject to production testing.
DC Electrical Characteristics - Voltages are with respect to GNDA unless otherwise stated.
Characteristics
Sym
Min Typ* Max Units
Test Conditions
1 Supply Current
IDD
IEE
IBat
2 Power Consumption
PC
10 15
10 15
10 60
300 400
1800
50
mA
mA
mA PD =High
mW Standby, VBat = -48V
mW LCA = Low, (Off Hook)
mW PD = Low
3 Constant Current Line
Feed
4 Operating Loop
(Inclusive of Tele. Set)
RLoop
25 30 35
40 45 50
mA LCA=Low
mA LCA=High
750
Ω
ILoop = 45mA
1150
Ω
ILoop = 30mA
VBAT = -48V
5 Off Hook Detection
Threshold
6 Unbalanced
Detection
7 VMSG Leakage Current
SHK
EGB
400
10
10
2 200
Ω
ILoop = 30mA
VBAT =-22V
mA
mA
µA MSE = LOW
8 VMSG Bias Current
9 VMSG Voltage Drop
1.5
mA MSE = HIGH♣
VMSG = -100V
4
5
V
IMSG = 3mA
10 LCA, MSE, RE, PD
Input Low Voltage
Input High Voltage
VIL
0.4 0.8
V
IiI = -2mA
VIH
2.0 2.4
V
Iih = 0.4mA
11 EGB, SHK, LA, WU
Output Low Voltage
Output High Voltage
VOL
VOH
2.4
0.4
V
lol = 2mA
V
loh = -0.4mA
12 Loop Output Voltage
VLoop
0
-5
V
PD = High
SHK = Low (Off Hook)
VBat = -48V
* Typical figures are at 25°C with nominal+ 5V supplies and are for design aid only: not guaranteed and not subject to production testing.
♣ Averaged level with no load applied, and a cadence of 1s “On”, 3s “Off”.
2-134
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