Preliminary Information
Absolute Maximum Ratings* -
All voltages are with respect to AGND unless otherwise specified.
Parameter
1
2
3
4
5
DC Supply Voltage
Storage Temperature
DC Loop Voltage
Ringing Voltage
Loop Current
- 2 variant
- all other variants
Symbol
V
DD
T
S
V
BAT
V
R
V
R
I
Loop
Min
-0.3
-55
-110
-
-2
-
MH88422
.
Max
6
+125
+110
150
120
90
Units
V
˚C
V
Vrms
Vrms
mA
*Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied.
Recommended Operating Conditions
Parameter
1
2
3
DC Supply Voltages
Operating Temperatures
Ringing Voltage
Sym
V
DD
T
OP
V
R
Min
4.75
0
Typ
‡
5.0
25
75
Max
5.25
70
90
Units
V
Test Conditions
˚C
Vrms
150 Vrms for -2 variant
‡ Typical figures are at 25˚C with nominal +5V supply and are for design aid only
Loop Electrical Characteristics
†
Characteristics
1
Ringing Voltage
-1 Variant Only
No Detect
Detect
No Detect
Detect
No Detect
Detect
Sym
VR
17
35
15
32
7
14
23
15
20
15
6.0
28.8
-2 Variant
2.4
3.1
-3 Variant
6.0
BD-1 Variant
6.0
6.0
6.0
6.0
7.8
9.0
14.0
10.8
27
28
68
80
80
Vrms
Vrms
Vrms
Vrms
Vrms
Vrms
Hz
Hz
mA
mA
V
V
V
V
V
V
V
V
V
Test circuit as Fig 4
I
Loop
=19mA (See Note 1)
I
Loop
=60mA
I
Loop
=15mA
I
Loop
=20mA (See Note 2)
I
Loop
=26mA
I
Loop
=15mA (See Note 3)
I
Loop
=90mA
I
Loop
=20mA (See Note 4)
I
Loop
=50mA
Min
Typ
‡
Max
Units
Test Conditions
Externally Adjustable -
See MSAN-154
BD-1 Variant Only
All other Variants
2
Ringing Frequency
BD-1 Variant Only
All other Variants
Operating Loop Current
BD-1 Variant Only
All other Variants
Off-Hook DC Voltage
-1 Variant
3
4
2-17
MITEL [ MITEL NETWORKS CORPORATION ]
