S3050 AMCC (Applied Micro Circuits Corp), S3050 Datasheet - Page 10

• Manufacturer Part Number: S3050
• Description: Bicmos Pecl Clock Generator Multi-rate Sonet/sdh Clock Recovery Unit
• Manufacturer: AMCC (Applied Micro Circuits Corp)

Connecting to the Output of S3051
The output of the S3051 does not require any external termination.
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.
10
S3051
Figure 8. Output Termination
Figure 9. Adjusting the DC Bias Level at DIN–
Figure 10. Adjusting the DC Bias Level at DIN+
V
OFFSET
V
V
OFFSET
IN-
V
5V
IN+
S3051
DOUT+
DOUT-
C
C
3
2
C
BYP
BYP
C
+
-
BYP
BYP
Zo=50
Zo=50
+
-
0.1 F
0.1 F
V
V
DIN+
DIN-
18
DIN-
19
V
DIN+
V
+REF
-REF
+REF
-REF
V CC –0.4V
V CC –0.4V
100
DOUT-
DOUT+
DOUT-
DOUT+
2.5 GBPS LIMITING AMPLIFIER
S3050
+5V
July 14, 1999 / Revision B