
Data Sheet
September 2001
Full-Feature SLIC and Ringing Relay for TR-57 Applications
L9313 Line Interface and Line Access Circuit
16
Agere Systems Inc.
Electrical Characteristics
(continued)
SLIC Two-Wire Port
Table 6. SLIC Two-Wire Port
* Guarantees 46 dB from 300 Hz to 3.4 kHz, with 50
, 1% protection, resistors into a complex resistive termination impedance.
Parameter
Min
75
10
8.5
Typ
—
—
15
Max
—
—
—
Unit
mApeak
mArms
mArms
PT and PR Drive Current = dc + Longitudinal + Signal Currents
Signal Current
Longitudinal Current Capability per Wire (longitudinal current is indepen-
dent of dc loop current)
dc Active Mode Loop Current –
I
LIM
(
R
LOOP
= 100
):
Programming Range
Voltage at V
PROG
dc Current-limit Variation:
V
PROG
= 0.8 V (I
LIMIT
= 40 mA)
Loop Resistance Range (from PT/PR) (3.17 dBm overload into 600
):
I
LOOP
= 20 mA at V
BAT1
= –
48 V
V
REF
Offset at V
PROG
dc Feed Resistance (includes internal SLIC dc resistance and break
switch resistance)
dV/dT Sensitivity at PT/PR
Ground Start State PT Resistance
Powerup Open Loop Voltages (V
BAT1
= –
48 V):
Forward/Reverse Active Mode
|
PT
–
PR
|
–
V
BAT1
(programming range)
Voltage at OVH (programming voltage)
Forward/Reverse Active Mode
|
PT
–
PR
|
–
V
BAT1
(OVH to GND)
Common Mode
Powerup Open Loop Voltages:
Scan Mode
|
PT –
PR
|
–
V
BAT1
Loop Closure Threshold:
Voltage at LCTH
Loop Closure Threshold Hysteresis
Ground Start:
Gain ICM to RGDET
Common-mode Detector Threshold
Longitudinal to Metallic Balance at PT/PR*
(Test Method:
IEEE
Std. 455):
200 Hz to 3.4 kHz
Metallic to Longitudinal (harm) Balance:
200 Hz to 4000 Hz
10
0.2
—
0
45
0.9
mA
V
—
5
—
%
1900
2.23
–
40
50
—
2.35
—
75
—
2.47
40
100
V
mV
—
100
200
—
—
—
V/
μ
s
k
5.5
0
5.5
—
—
—
6.1
(V
BAT1
+ 1)/2
15
1.9
—
—
V
V
V
V
0
—
13.5
V
0
—
—
20
V
REF
—
V
%
—
5
1
—
—
10
μ
A/mA
mA
61
—
—
dB
40
—
—
dB