Re: [time-nuts] Si5340 synthesizer chip performance
The reference was a 5 MHz Wenzel ULN and the instrument was a Miles TimePod. On Jan 28, 2018, 8:13 PM, at 8:13 PM, Jerry Hancock wrote: >John, what device did you use for the test? > > >Regards, > >Jerry > > >Jerry Hancock >je...@hanler.com >(415) 215-3779 > >> On Jan 28, 2018, at 4:23 PM, John Ackermann N8UR >wrote: >> >> I received the Si5340A evaluation board from Digikey on Friday and >fired it up yesterday. I used the SiLabs "ClockBuilder" software to >configure four outputs -- 10 MHz, 15 MHz, 29.999 999 9 MHz, and 144.2 >MHz -- all using the 45 MHz crystal that comes with the EVM. Attached >is a phase noise plot of the 10 MHz and 29.999 999 9 MHz signals. I >would say this isn't too bad! This performance is certainly sufficient >for any of the RF work I have in mind. >> >> The ADEV was another matter -- about 1e-9 at 1 second, working its >way uphill from there. But what do you expect from a bare crystal? >> >> John >> >> ___ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to >https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > >___ >time-nuts mailing list -- time-nuts@febo.com >To unsubscribe, go to >https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Si5340 synthesizer chip performance
John, what device did you use for the test? Regards, Jerry Jerry Hancock je...@hanler.com (415) 215-3779 > On Jan 28, 2018, at 4:23 PM, John Ackermann N8UR wrote: > > I received the Si5340A evaluation board from Digikey on Friday and fired it > up yesterday. I used the SiLabs "ClockBuilder" software to configure four > outputs -- 10 MHz, 15 MHz, 29.999 999 9 MHz, and 144.2 MHz -- all using the > 45 MHz crystal that comes with the EVM. Attached is a phase noise plot of > the 10 MHz and 29.999 999 9 MHz signals. I would say this isn't too bad! > This performance is certainly sufficient for any of the RF work I have in > mind. > > The ADEV was another matter -- about 1e-9 at 1 second, working its way uphill > from there. But what do you expect from a bare crystal? > > John > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Si5340 synthesizer chip performance
Hi It would be *very* interesting to see what happens if you sync it up to a 10 MHz input …. Bob > On Jan 28, 2018, at 7:23 PM, John Ackermann N8UR wrote: > > I received the Si5340A evaluation board from Digikey on Friday and fired it > up yesterday. I used the SiLabs "ClockBuilder" software to configure four > outputs -- 10 MHz, 15 MHz, 29.999 999 9 MHz, and 144.2 MHz -- all using the > 45 MHz crystal that comes with the EVM. Attached is a phase noise plot of > the 10 MHz and 29.999 999 9 MHz signals. I would say this isn't too bad! > This performance is certainly sufficient for any of the RF work I have in > mind. > > The ADEV was another matter -- about 1e-9 at 1 second, working its way uphill > from there. But what do you expect from a bare crystal? > > John > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Si5340 synthesizer chip performance
I received the Si5340A evaluation board from Digikey on Friday and fired it up yesterday. I used the SiLabs "ClockBuilder" software to configure four outputs -- 10 MHz, 15 MHz, 29.999 999 9 MHz, and 144.2 MHz -- all using the 45 MHz crystal that comes with the EVM. Attached is a phase noise plot of the 10 MHz and 29.999 999 9 MHz signals. I would say this isn't too bad! This performance is certainly sufficient for any of the RF work I have in mind. The ADEV was another matter -- about 1e-9 at 1 second, working its way uphill from there. But what do you expect from a bare crystal? John ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
