L7554 AGERE [Agere Systems], L7554 Datasheet - Page 16

• Manufacturer Part Number: L7554
• Description: L7554 Low-Power SLIC
• Manufacturer: AGERE [Agere Systems]

L7554 Low-Power SLIC
Applications
Design Considerations
Table 11 shows the design parameters of the application circuit shown in Figure 11. Components that are adjusted
to program these values are also shown.
Table 11. 600
16
Loop Closure Threshold
dc Loop Current Limit
dc Feed Resistance
2-wire Signal Overload Level
ac Termination Impedance
Hybrid Balance Line Impedance
Transmit Gain
Receive Gain
Design Parameter
Design Parameters
(continued)
Parameter Value
3.14 dBm
10 mA
40 mA
183
600
600
0 dB
0 dB
Components Adjusted
R
R
Lucent Technologies Inc.
T1
RCV
R
, R
R
R
R
PT
R
, R
T2
PROG
LCTH
—
GP
HB1
, R
, R
GP
, R
PR
X
, R
RCV
March 1997
Data Sheet
T1