参数资料
型号: ATTL7554AP
厂商: Electronic Theatre Controls, Inc.
英文描述: LH1263 E&M Signaling Circuit
中文描述: LH1263首页
文件页数: 9/28页
文件大小: 486K
代理商: ATTL7554AP
Lucent Technologies Inc.
9
Data Sheet
March 1997
L7554 Low-Power SLIC
Electrical Characteristics
(continued)
Table 6. Analog Pin Characteristics
1. Loop closure threshold is programmed by resistor R
LCTH
from pin LCTH to pin DCOUT.
2. Ring ground threshold is programmed by resistor R
ICM2
from pin I
CM
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)
Offset Voltage @ I
LOOP
= 0, V
BAT
= –48 V
–119
–200
–125
–127
200
V/A
mV
Loop Closure Detector Threshold
1
Programming Accuracy
±
20
%
Ring Ground Detector Threshold
2
R
ICM
= 83 k
Programming Accuracy
3
6
10
±
25
k
%
Ring Trip Comparator
Input Offset Voltage
±
10
mV
RCVN, RCVP
Input Bias Current
–0.2
–1
μ
A
Parameter
Min
Typ
±
5
±
10
200
1.5
±
3.5
2.0
Max
Unit
Input Offset Voltage
Input Offset Current
Input Bias Current
Differential Input Resistance
Output Voltage Swing (R
L
= 10 k
)
Output Resistance (A
VCL
= 1)
mV
nA
nA
M
Vpk
kHz
Small Signal GBW
700
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