Data Sheet
DC Electrical Characteristics
†
-
Voltages are with respect to GNDA unless otherwise stated.
Characteristics
1
Supply Current
V
CC
V
EE
V
BAT
2
3
4
5
Power Consumption
Constant Current Line Feed
Adjustable Loop Current Range
Operating Loop Resistance
I
CC
I
EE
I
BAT
P
C
I
Loop
I
Loop
R
Loop
23
18
6.6
-3.8
150
2
160
1600
25
27
30
1200
mA
mA
µA
mA
mW
mW
mA
mA
Ω
Sym
Min
Typ
‡
Max
Units
MH88612B
Test Conditions
500
PD = Logic High
PD = Logic Low, Idle
Standby V
BAT
= -48V
Active (Off Hook)
V
REF
= AGND, V
BAT
= -48V
Adjustable with Ext. V
REF
input, V
BAT
= -48V
V
BAT
= -48V @ I
LOOP
=
18mA, R
LOOP
includes
telephone set
I
LOOP
= 25mA V
BAT
= 48V
I
LOOP
= 30mA V
BAT
= 48V
Active high logic
6
7
Ring Ground Over-Current
protection
Off-Hook Detect
Output Low Voltage (On-hook)
Output High Voltage (Off-hook)
Off-Hook Detect
Output Low Current (On-hook)
Output High Current. (Off-hook)
RC, PD Control Input
Input Low Volt (no activation)
Input High Volt (activation)
RC, PD control Input
Input Low Current (no
activation)
Input high current (activation)
PD Control Input
Input Low Current
Input High Current
V
OL
V
OH
I
OL
I
OH
V
IL
V
IH
I
IL
I
IH
I
IL
I
IH
40
50
0.4
2.7
8
-200
0.7
2.0
50
0.5
0.5
0.3
mA
mA
V
V
mA
µA
8
9
Active high logic
V
V
µA
mA
mA
mA
LSTTL compatible
10
11
† DC Electrical Characteristics are over recommended operating supply voltages.
‡ Typical figures are at 25°C with nominal
±
5V supplies and are for design aid only.
SEMICMF.019
7
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
