LS110GXS-1CF269C Lattice Semiconductor Corp., LS110GXS-1CF269C Datasheet - Page 8

• Manufacturer Part Number: LS110GXS-1CF269C
• Description: Fully Integrated 10gbps Serializer/deserializer Device
• Manufacturer: Lattice Semiconductor Corp.

Lattice Semiconductor
Driving RX_REF_CK_P/N is only necessary when:
• The transmitter and receiver run at independent data rates
• Line Loopback Mode 1 is active
• Line Loopback Mode 2 is active
Figure 5 shows how a reference clock is input to the XPIO 110GXS using an AC coupling scheme.
Figure 5. CML Output Driver Termination (AC Coupled)
Figure 6. CML Input Receiver (AC Coupled)
50Ω
0.1µ
0.1µ
V
DD
XPIO 110GXS
Z0 = 50
50Ω
External
0.1µF
0.1µF
External
8
50
XPIO
Zo = 50Ω
50
50Ω
V
DCFB
DD
V
XPIO 110GXS Data Sheet
DD
50Ω