L9219G データシートの表示（PDF） - Agere -> LSI Corporation
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L9219G Datasheet PDF : 30 Pages
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L9219A/G Low-Cost Line Interface
with Reverse Battery and Dual Current Limit
Electrical Characteristics (continued)
Table 6. Analog Pin Characteristics
Parameter
Min
Typ
Differential PT/PR Current Sense (DCOUT):
Gain (PT/PR to DCOUT)
Offset Voltage at ILOOP = 0
121
125
–100
—
Loop Closure Detector Threshold (RLCTH = 22.1 kΩ)1:
On-hook to Off-hook Threshold (scan mode)
8.8
—
Off-hook to On-hook Threshold (active mode)
6.0
—
Ring Trip Comparator:
Input Offset Voltage2
Internal Voltage Source
Current at Input RTSP3
—
–9.1
IN – 0.5
±10
–8.6
IN
RCVN, RCVP:
Input Bias Current
Input Resistance
—
–0.2
—
1
1. Loop closure threshold is programmed by resistor RLCTH from pin LCTH to pin DCOUT.
2. This parameter is not tested in production. It is guaranteed by design and device characterization.
3. IN is the sourcing current at RTSN. Guaranteed if IN is within 5 µA to 30 µA.
Data Sheet
November 2001
Max
Unit
129
V/A
100
mV
13.6
mA
10.2
mA
—
mV
–8.1
V
IN + 0.6
µA
–1
µA
—
MΩ
10
Agere Systems Inc.
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