LUCL9218AAR-D AGERE [Agere Systems], LUCL9218AAR-D Datasheet - Page 9

• Manufacturer Part Number: LUCL9218AAR-D
• Description: Low-Cost Line Interface
• Manufacturer: AGERE [Agere Systems]

Data Sheet
November 2001
Agere Systems Inc.
Electrical Characteristics
Table 5. 2-Wire Port
1. The longitudinal current is independent of dc loop current.
2. Current-limit I
3. This parameter is not tested in production. It is guaranteed by design and device characterization.
4. Specification is reduced to |V
5. Longitudinal balance of circuit card will depend on loop series protection resistor matching and magnitude. More information is available in
Tip or Ring Drive Current = dc + Longitudinal + Signal
Signal Current
Longitudinal Current Capability per Wire
dc Loop Current Limit
Powerup Open Loop Voltage Levels:
dc Feed Resistance (for I
Loop Resistance Range (–3.17 dBm overload into
Longitudinal to Metallic Balance— IEEE
Metallic to Longitudinal Balance (open loop):
RFI Rejection (See Figure 8)
Disconnect State:
begins (see Figure 13).
the Applications section of this document.
Currents
not include protection resistor)
30% AM Mod 1 kHz:
900
(See Figure 7)
Allowed Range Including Tolerance
Accuracy (R
Leakage
I
200 Hz to 3400 Hz
200 Hz to 4 kHz
500 kHz to 100 MHz
Common-mode Voltage
Differential Voltage V
Differential Voltage V
LOOP
; not including protection):
= 20 mA at V
LIM
is programmed by a resistor, R
LOOP
5
:
= 100
2
:
BAT
Parameter
LOOP
BAT1
BAT
BAT
= –48 V
+ 10.5 V| minimum when V
3
below regulation level) (does
, V
= –48 V
= –48 V
, 0.5 Vrms, 50
BAT
(continued)
= –48 V)
4
4
(Gain = 2)
(Gain = 7.86)
PROG
®
3
1
Std. 455
, from pin I
Source,
BAT1
PROG
= –70 V at 85 C.
to DCOUT. I
|V
|V
BAT
BAT
1800
Min
8.5
80
15
15
58
40
—
—
—
—
—
—
LIM
+ 7.5|
+ 8.0|
is specified at the loop resistance where current limiting
L9218A/G Low-Cost Line Interface
|V
|V
BAT
BAT
V
Typ
–55
BAT
15
10
80
61
—
—
—
—
—
—
5
+ 6.5|
+ 6.5|
/2
|V
|V
BAT
BAT
Max
150
100
–45
45
—
—
—
—
—
—
—
—
—
+ 5.9|
+ 5.9|
mArms
mArms
Unit
dBV
mA
mA
dB
dB
—
%
V
V
V
A
9