LUCL9218AAR-D AGERE [Agere Systems], LUCL9218AAR-D Datasheet - Page 10

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

L9218A/G Low-Cost Line Interface
Electrical Characteristics
Table 6. Analog Pin Characteristics
1. Loop closure threshold is programmed by resistor R
2. This parameter is not tested in production. It is guaranteed by design and device characterization.
3. I
10
Differential PT/PR Current Sense (DCOUT):
Loop Closure Detector Threshold (R
Ring Trip Comparator:
RCVN, RCVP:
off-hook threshold and resistor value is different for active mode versus scan mode (see Applications section for more details).
N
is the sourcing current at RTSN. Guaranteed if I
Gain (PT/PR to DCOUT)
Offset Voltage at I
On- to Off-hook Threshold (scan mode)
Off- to On-hook Threshold (active mode)
Input Offset Voltage
Internal Voltage Source
Current at Input RTSP
Input Bias Current
Input Resistance
LOOP
Parameter
2
3
= 0
(continued)
LCTH
= 22.1 k )
N
LCTH
is within 5 A to 30 A.
from pin LCTH to pin DCOUT. The programming equation or relationship between
1
:
I
N
–100
–9.1
Min
121
8.8
6.0
– 0.5
—
—
—
–8.6
–0.2
Typ
125
±10
—
—
—
I
1
N
I
N
Max
13.6
10.2
–8.1
129
100
+ 0.6
–1
—
—
November 2001
Agere Systems Inc.
Data Sheet
Unit
V/A
M
mV
mA
mA
mV
V
A
A