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參數(shù)資料
| 型號(hào)： | L7557 |
| 廠商： | Lineage Power |
| 英文描述： | Low-Power SLICs （electronic subscriber loop interface circuits ）with Battery Switch(帶電池開關(guān)的低功耗用戶環(huán)路線接口電路（SLIC）) |
| 中文描述： | 低功耗SLIC組件（電子用戶環(huán)路接口電路）與電池開關(guān)（帶電池開關(guān)的低功耗用戶環(huán)路線接口電路電路（SLIC）） |
| 文件頁(yè)數(shù)： | 9/28頁(yè) |
| 文件大?。?/td> | 753K |
| 代理商： | L7557 |
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Lucent Technologies Inc.
9
Data Sheet
January 2000
with Battery Switch
L7556, L7557 Low-Power SLICs
Electrical Characteristics
(continued)
Table 6. Analog Pin Characteristics
1. Loop closure threshold is programmed by resistor RLCTH from pin LCTH to pin DCOUT.
2. Ring ground threshold is programmed by resistor RICM2 from pin ICM to V
CC
.
Table 7. Uncommitted Op Amp Characteristics
Parameter
Min
Typ
Max
Unit
Differential PT/PR Current Sense (DCOUT):
Gain (PT/PR to DCOUT)
Loop Closure Detector Threshold
1
:
Programming Accuracy
Ring Ground Detector Threshold
2
:
R
ICM
= 154 k
Programming Accuracy
Ring Trip Comparator:
Input Offset Voltage
RCVN, RCVP:
Input Bias Current
–123
–125
–127
V/A
—
—
±20
%
3
—
6
—
10
±25
k
%
—
—
±10
mV
—
–0.2
–1
μA
Parameter
Min
—
—
—
—
—
—
—
Typ
±5
±10
200
1.5
±3.5
2.0
700
Max
—
—
—
—
—
—
—
Unit
mV
nA
nA
M
Vpk
kHz
Input Offset Voltage
Input Offset Current
Input Bias Current
Differential Input Resistance
Output Voltage Swing (R
L
= 10 k
)
Output Resistance (A
VCL
= 1)
Small Signal GBW
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