Revision 3.03 – May 25, 2007
S1220 – SONET/SDH/ATM Quad OC-3/12
with Clock Data Recovery (CDR)
Advance Data Sheet
Figure 19. Differential LVDS Input DC Coupled Termination, VDDH=2.5 V or 3.3 V
1.8V or 2.5 V
or 3.3 V
VDDH = 2.5 V
or 3.3 V
VDDI
Zo = 50 Ω
Zo = 50 Ω
50 Ω
50 Ω
S1220
SERDATIP/N
LVDS
LVDS
Figure 20. Differential LVDS Input AC Coupled Termination, VDDH=2.5 V or 3.3 V
VDDH = 2.5 V
or 3.3 V
VDDI
0.1 µF
0.1 µF
Zo = 50 Ω
Zo = 50 Ω
50 Ω
50 Ω
S1220
SERDATIP/N
LVDS
LVDS
Figure 21. Differential LVDS Driver to LVDS Input Termination
1.8 V
2.5 V
3.3 V
2.5 V
3.3 V
Zo = 50 Ω
100 Ω
Zo = 50 Ω
S1220
SERDATOP/N
SERCLKOP/N
SERDES
Framer
LVDS
LVDS
AMCC Confidential and Proprietary
DS2018
39
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
