L7554 AGERE [Agere Systems], L7554 Datasheet - Page 12

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

L7554 Low-Power SLIC
Test Configurations
12
900
Figure 5. Metallic PSRR
V
+
T/R
–
PSRR = 20 log
TP
PR
4.7 µF
100
TEST CIRCUIT
V
BAT
V
BASIC
CC
OR
68.1 k
V
24.9 k
R
V
--------- -
V
BAT
V
LOOP
S
T/R
S
100
100
OR V
DISCONNECT
BYPASS CAP
CC
Figure 4. L7554 Basic Test Circuit
V
PT
PR
DCOUT
I
LCTH
RTSP
RTSN
I
PROG
CM
REG
VTX
V
V
BAT
BAT
0.1 µF
TXI
BGND V
L7554
12-2335.a (C)
0.1 µF
SLIC
V
CC
CC
FB2 FB1
0.1 µF
NRDET
RGDET
RCVN
AGND
RCVP
VTR
CF2
XMT
NLC
CF1
SN
B1
B2
B0
+
–
V
M
0.1 µF
0.1 µF
20 k
20 k
56.3
Figure 6. Longitudinal PSRR
65 k
10 k
67.5
67.5
26 k
10 µF
10 µF
XMT
RCV
PSRR = 20 log
PT
PR
4.7 µF
100
Lucent Technologies Inc.
V
BAT
V
TEST CIRCUIT
CC
V
OR
V
S
BASIC
BAT
OR V
------ -
V
V
DISCONNECT
BYPASS CAP
M
S
March 1997
Data Sheet
CC
12-2336.a (C)
12-2570 (C)