PBL 3764 A
Ref
fig
Parameter
Conditions
Min
Typ
Max
Unit
Battery feed characteristics
Constant loop current, I
L
I
L
=
2500
R
DC1
+ R
DC2
V
Bat
- 3
R
L
+ 1800
, R
DC1
, R
DC2
ın kΩ
0.92 I
L
I
L
1.08 I
L
mA
Stand-by state loop current, I
L
,
tolerance range
Loop current detector
Loop current detector threshold
on-hook to off-hook, I
LThOff
Loop current detector threshold
off-hook to on-hook, I
LThOn
Loop current detector
hysteresis,
∂I
LTh
Ground key detector
I
LTIPX
and I
RINGX
current difference,
∆I
LOn
,
to trigger the ground key detector
I
LTIPX
and I
LRINGX
current difference,
∆I
LOff
,
to return the triggered ground key
detector to idle state
Hysteresis,
∂I
LGK
I
L
=
T
A
= 25°C
0.8 I
L
I
L
1.2 I
L
mA
R
D
= 33 kΩ
0°C
≤
T
Amb
≤
70° C
-40°C
≤
T
Amb
≤
85°C
R
D
= 33kΩ
0°C
≤
T
Amb
≤
70°C
-40°C
≤
T
Amb
≤
85°C
R
D
=33kΩ
0°C
≤
T
Amb
≤
70°C
-40°C
≤
T
Amb
≤
85°C
0°C
≤
T
Amb
≤
70°C
-40°C
≤
T
Amb
≤
85°C
0°C
≤
T
Amb
≤
70°C
-40°C
≤
T
Amb
≤
85°C
|∆I
LOn
-
∆I
LOff
|
0°C
≤
T
Amb
≤
70°C
-40°C
≤
T
Amb
≤
85°C
Source resistance, R
S
= 0
Ω
I
B
= (I
DT
+ I
DR
)/2
12.2
11.3
10.7
9.8
465/R
D
465/R
D
405/R
D
405/R
D
60/R
D
60/R
D
12
12
7
7
15.7
16.9
13.8
14.7
mA
mA
mA
mA
1.0
0.7
9
6.5
4
2.5
2.7
2.9
16
17.5
11
12
mA
mA
mA
mA
mA
mA
3
0
-20
-500
1
3
V
Bat
+1
5
5
8
9
20
mA
mA
mV
nA
MΩ
MΩ
V
V
µA
V
V
µA
µA
µA
V
V
kΩ
µs
µs
Ring trip detector
Offset voltage,
∆V
DTR
Input bias current, I
B
Input resistance
unbalanced
balanced
Input common mode range, V
DT
, V
DR
Ring relay driver
Saturation voltage, V
OL
Off state leakage current, I
Lk
Digital inputs
(C1, C2, E0, E1)
Input low voltage, V
IL
Input high voltage, V
IH
Input low current, I
IL
C1, C2
E0, E1
Input high current, I
IH
Detector output
(DET)
Output low voltage, V
OL
Output high voltage,V
OH
Internal pull-up resistor
Delay time E0 to DET
transition high to low, t
DHL
transition low to high, t
DLH
-100
-2
0.2
0.6
10
0.8
V
CC
I
OL
= 25 mA
V
OH
= 12 V
0
2.0
V
IL
= 0.4 V
-400
-100
V
IH
= 2.4 V
I
OL
= 2 mA
I
OH
= 100
µA
40
0.45
2.7
8
15
25
1
2
7
7
6
1522 PBL 3764 Uen Rev.C © Ericsson Microelectronics AB, April 2001
ERICSSON [ ERICSSON ]
