SM802120 データシートの表示（PDF） - Micrel
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SM802120 Datasheet PDF : 12 Pages
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Micrel, Inc.
Application Information
Crystal Layout
Keep the layers under the crystal as open as possible
and do not place switching signals or noisy supplies
under the crystal.
Crystal load capacitance is built inside the die so no
external capacitance is needed. See the Selecting a
Quartz crystal for the Clockworks Flex I Family of
Precision Synthesizers application note for further
details.
Contact Micrel’s HBW applications group if you need
assistance on selecting a suitable crystal for your
application at: hbwhelp@micrel.com.
SM802120
LVDS Outputs
LVDS outputs are to be terminated with 100Ω across Q
and /Q. For best performance, load all outputs. Outputs
can be DC or AC-coupled.
HCSL Outputs
HCSL outputs are to be terminated with 50Ω to VSS. For
best performance, load all outputs. For AC-coupled or to
change the termination, contact Micrel’s application
group: hbwhelp@micrel.com.
September 2011
4
M9999-092911-A
hbwhelp@micrel.com or (408) 955-1690
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