ATTL7554BP Agere Systems, ATTL7554BP Datasheet - Page 19

• Manufacturer Part Number: ATTL7554BP
• Description: L7554 Low-Power SLIC
• Manufacturer: Agere Systems

Data Sheet
March 1997
Applications
Characteristic Curves
Note: V
Figure 21. 7551 Typical SLIC Power Dissipation vs.
Lucent Technologies Inc.
2000
1500
1000
500
1500
1000
BAT
500
0
20
0
= –48 V; I
0
Loop Resistance
40
Figure 22. Power Derating
LIM
AMBIENT TEMPERATURE, T
(continued)
60
500
= 22 mA; R
LOOP RESISTANCE, R
80
STILL AIR
47 C/W
(continued)
DC1
1000
100
= 113 .
120
LOOP
A
1500
140
300 cu. ft./ min.
36 C/W
( C)
( )
160
12-3052 (C)
12-2825 (C)
2000
180
Figure 23. Longitudinal Balance Resistor Mismatch
Figure 24. Longitudinal Balance vs. Protection
60
55
50
45
40
8
7
6
5
4
3
2
1
0
0.0
0
58 dB, RP MATCHED
Requirements
Resistor Mismatch
PROTECTION RESISTOR MISMATCH ( )
TO 0.5
20
PROTECTION RESISTOR VALUE ( )
0.5
49 dB, RP MATCHED TO 1.5
40
L7554 Low-Power SLIC
1.0
60
1.5
80
2.0
100
12-3019 (C)
12-3021 (C)
2.5
120
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