ICS854S057BI Datasheet, PDF (8/15 Pages) Integrated Device Technology – One LVDS output pair

ICS854S057BI Data Sheet
Application Information
Recommendations for Unused Input Pins
Inputs:
LVCMOS Control Pins
All control pins have internal pulldowns; additional resistance is not
required but can be added for additional protection. A 1kΩ resistor
can be used.
4:1, OR 2:1 LVDS CLOCK MULTIPLEXER W/INTERNAL INPUT TERMINATION
2.5V Differential Input with Built-In 50Ω Termination Unused Input Handling
To prevent oscillation and to reduce noise, it is recommended to have
pullup and pulldown connect to true and compliment of the unused
input as shown in Figure 1.
2.5V
2.5V
R1
680
PCLK
VT
nPCLK
R2
680
Receiver
With
Built-In
50Ω
Figure 1. Unused Input Handling
ICS854S057BGI REVISION A MARCH 29, 2010
8
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