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参数资料
| 型号： | LUCL9219GAR-DT |
| 英文描述： | Low-Cost Line Interface with Reverse Battery and Dual Current Limit |
| 中文描述： | 低成本线接口，具有反向电池和双电流限制 |
| 文件页数： | 2/30页 |
| 文件大小： | 397K |
| 代理商： | LUCL9219GAR-DT |
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10
Agere Systems Inc.
Data Sheet
November 2001
with Reverse Battery and Dual Current Limit
L9219A/G Low-Cost Line Interface
Electrical Characteristics (continued)
Table 6. Analog Pin Characteristics
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
A to 30 A.
Parameter
Min
Typ
Max
Unit
Differential PT/PR Current Sense (DCOUT):
Gain (PT/PR to DCOUT)
Offset Voltage at ILOOP = 0
121
–100
125
—
129
100
V/A
mV
Loop Closure Detector Threshold (RLCTH = 22.1 k
)1:
On-hook to Off-hook Threshold (scan mode)
Off-hook to On-hook Threshold (active mode)
8.8
6.0
—
13.6
10.2
mA
Ring Trip Comparator:
Input Offset Voltage2
Internal Voltage Source
Current at Input RTSP3
—
–9.1
IN – 0.5
±10
–8.6
IN
—
–8.1
IN + 0.6
mV
V
A
RCVN, RCVP:
Input Bias Current
Input Resistance
—
–0.2
1
–1
—
A
M
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