[time-nuts] OP-Amps for 10MHz distribution...?

Bruce Griffiths bruce.griffiths at xtra.co.nz
Tue Feb 28 10:42:33 UTC 2012


The attached plot indicates the phase noise performance obtainable with 
a wideband FET (OPA653) input opamp.
With a 10MHz +9dBm input, the phase noise floor is around -163dBc/Hz at 
1kHz offset and around -154dBc/Hz at 10Hz offset.
A quieter test source would be useful particularly for offsets below 10Hz.

Bruce
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