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Número de pieza
componentes Descripción
ATTL7554AP Ver la hoja de datos (PDF) - Agere -> LSI Corporation
Número de pieza
componentes Descripción
Fabricante
ATTL7554AP
L7554 Low-Power SLIC
Agere -> LSI Corporation
ATTL7554AP Datasheet PDF : 28 Pages
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L7554 Low-Power SLIC
Data Sheet
March 1997
Applications
(continued)
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
Ω
Design Parameters
Design Parameter
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
Parameter Value
10 mA
40 mA
183
Ω
3.14 dBm
600
Ω
600
Ω
0 dB
0 dB
Components Adjusted
R
LCTH
R
PROG
R
PT
, R
PR
—
R
T1
, R
GP
, R
RCV
R
HB1
R
T2
, R
X
R
RCV
, R
GP
, R
T1
16
Lucent Technologies Inc.
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