Sorry to hijack the thread, but the Si5351 looks interesting for another
project I'm working on. I know it specifies "low jitter" but has anyone
looked at the phase noise? Is it usable for RF applications?
Thanks,
John
----
On 01/18/2018 08:53 AM, D. Jeff Dionne wrote:
Chris,
You don't need to do that. The SiLabs part will accept the 10MHz sin from an
OCXO directly into the XA pin. That pin normally connects to a crystal, so
there is a high gain amp in the chip to square it up already... I did the tests
a while back, see the thread here:
https://www.silabs.com/community/timing/forum.topic.html/si5351_msop10_packag-wocK
Caveats: others had trouble with biasing, and found just squaring the OCXO up
first worked for them. SiLabs software is not set up to allow any other
frequencies except 25 or 27MHz, so you do need to calculate the register values
yourself.
J.
Is there an easy way to get 25 or 27 MHz from my Trimble Thunderbolt as a
reference clock at 1v P to P square wave for a Si5351a synthesizer chip please?
I have the David Partridge divider board from way back that is still going
strong, but 25 MHz is not an option as it divides only. Thanks, please keep
replies to the level an idiot might comprehend :) -- Best Regards, Chris
Wilson. mailto: chris at chriswilson.tv
_______________________________________________
time-nuts mailing list -- [email protected]
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
_______________________________________________
time-nuts mailing list -- [email protected]
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
