SM802112UMGTR Просмотр технического описания (PDF) - Micrel

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SM802112UMGTR

ClockWorks™ 3-Output, 480MHz/80MHz, Ultra-Low Jitter LVDS/CMOS Frequency Synthesizer

Micrel 

Micrel, Inc.

Application Information

REF_IN Input

For a 1VP−P sine wave signal applied to REF_IN with the

part operating at 3.3V, AC couple REF_IN with a 50Ω

termination of 206Ω to VDD and 66Ω to ground, close to

the input. This provides 50Ω Thevenin termination and a

DC voltage of 0.8V.

LVDS Outputs

LVDS outputs are to be terminated with 100Ω across Q

and /Q. For best performance load all outputs. You can

DC or AC-couple the outputs.

SM802112

LVCMOS Outputs

LVCMOS output Q2 and /Q2 are 80MHz complimentary

outputs to reduce switching noise. Terminate both

outputs with identical loads to minimize noise.

September 2011

7

M9999-091411-A

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

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