Charles,
Thanks for the reminder about this... it will neatly solve a problem I
have at hand. Can you advise which core you used for the transformer?
Thanks,
david
On 10/07/2016 07:57, Charles Steinmetz wrote:
James wrote:
Is there a preferred frequency doubler circuit which would do the
least harm to the ADEV of the oscillator? The signal can be a square
wave and does not need to be a sine wave. Thanks. Jim Robbins
A quadrature-fed DBM produces the lowest jitter and noise. My
implementation can be found at:
<http://www.ko4bb.com/getsimple/index.php?id=download&file=02_GPS_Timing/4_App_Notes_and_Articles/Frequency_doubler_quadrature_DBM.pdf>
A well-designed push-push frequency doubler is probably second (but note
that many push-push designs you find on the web have various common
design flaws). My implementation can be found at:
<http://www.ko4bb.com/getsimple/index.php?id=download&file=02_GPS_Timing/Frequency_doubler_push_push_JFET_schematic_description_discussion.pdf>
Best regards,
Charles
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