SM802101 datasheet(7/12 Pages) MICREL

部件名	SM802101

功能描述	ClockWorks??PCI-e Octal 100MHz/200MHz Ultra-Low Jitter, HCSL Frequency Synthesizer

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制造商	MICREL [Micrel Semiconductor]

网页	http://www.micrel.com

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7 / 12 page

Micrel, Inc.

SM802101

July 2011

7

M9999-072111-A

hbwhelp@micrel.com or (408) 955-1690

Application Information

Input Reference

When operating with a crystal input reference, do not

apply a switching signal to REF_IN.

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.

HCSL Outputs

HCSL outputs are to be terminated with 50Ω to VSS. For

best performance load all outputs. If you want to AC-

couple or change the termination, contact Micrel’s

application group at: hbwhelp@micrel.com.

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