Le79489
ELECTRICAL CHARACTERISTICS
(CONTINUED)
Description
RFI Rejection
RFI rejection
100 kHz to 30 MHz
(See Figure E)
0.7
Test Conditions (See Note 1)
Min
Typ
Max
Data Sheet
Unit
mVrms
Note
4
Logic Inputs (C4–C1, E1, BSWEN, OVH [–5, –6 only])
V
IH
, Input High voltage
C3
C1, C2, C4, BSWEN, OVH, E1
V
IL
, Input Low voltage
I
IH
, Input High current C4–C1,
OVH, E1
I
IH
, Input High current, BSWEN
I
IL
, Input Low current, except C1
I
IL
, Input Low current, C1
Logic Output (DET, BSWOUT)
V
OL
, Output Low voltage
V
OH
, Output High voltage
Bias current
Offset voltage
Loop Detector
I
T
, Loop-detect threshold tolerance
Active state, Off-hook to On-hook
R
D
= 35.4 kΩ, I
T
= 368/R
D
On-hook to Off-hook
R
D
= 35.4 kΩ, I
T
= 414/R
D
Standby state, Off-hook to On-hook
R
D
= 35.4 kΩ, I
T
= 425/R
D
On-hook to Off-hook
R
D
= 35.4 kΩ, I
T
= 471/R
D
Loop-detect threshold hysteresis
IGK, GND key-detector threshold
Active state
Standby state
R
L
from BX to GND
Active, Standby, and Tip Open states
I
OL
= 40 mA
V
OH
= +5 V
I
Z
= 100 µA
I
Z
= 40 mA
6
7.5
7.9
10
5
–20
1.3
9
13
mA
+20
4
–15
+15
–20
+20
%
–15
+15
Source resistance = 2 MΩ
I
OUT
= 0.3 mA
I
OUT
= –0.05 mA
2.4
–500
–50
–50
0
+50
0.40
V
–75
–75
–400
–600
–300
2.5
2.0
0.8
40
1200
µA
V
Ring-Trip Comparator Input (DA, DB)
nA
mV
5
Relay Driver Output (RINGOUT/TESTOUT)
On voltage
Off leakage
Zener breakover
Zener On voltage
+0.3
+0.7
100
V
µA
V
8
Zarlink Semiconductor Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
