S3051
2.5 GBPS LIMITING AMPLIFIER
Connecting to the Output of S3051
The output of the S3051 does not require any external termination.
Figure 8. Output Termination
5V
+5V
V
–0.4V
CC
Zo=50Ω
Zo=50Ω
19
18
2
3
DOUT+
DOUT-
0.1µF
0.1µF
100Ω
V
CC
–0.4V
S3050
S3051
Adjusting Input DC Offset
The DC bias level at DIN– and DIN+ can be adjusted by inserting a Difference Amplifier function, as
shown in Figures 9 and 10.
Figure 9. Adjusting the DC Bias Level at DIN–
CBYP
V+REF
VIN+
DOUT+
DOUT-
DIN+
DIN-
+
-
VOFFSET
CBYP
V-REF
Figure 10. Adjusting the DC Bias Level at DIN+
CBYP
V+REF
DIN+
+
DOUT+
DOUT-
-
VOFFSET
VIN-
DIN-
CBYP
V-REF
July 14, 1999 / Revision B
10
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
