Hi Stephanie, Welcome to the list!
We designed a 1GHz crystal LO for PLLs (the ULN-1G) using an off the shelf miniature 500MHz crystal oscillator which is run at 3 rd overtone internally then using a diode doubler and a steep bandpass filter using several Mini Circuits ceramic filters and a 20dBm amp. Works like a charm and has phase noise very close to theoretical.. Bye, Said Sent From iPhone > On Sep 15, 2014, at 5:50, "steph.rey" <steph....@wanadoo.fr> wrote: > > Hi the list, > > Just wanted to introduce myself for my 1st message. > I'm Stephane, 40, living in France, at the moment working in RF & electronics > for a particles accelerator lab. I'm hamradio as well, and I do enjoy > especially weak and accurate signals. > I'm desiging various RF circuits. Current design is a universal PLL able to > operate from 0.5 to 6 GHz depending on the VCO and supposed to be > "low-jitter" (<1ps) regarding the application. > I'm also starting a new design of low noise PLL and there will be probably a > lot of question arising... I'm starting with the 1 GHz LO made upon a 100 MHz > VCXO + multipliers/filters/MMICs. > I want to focus deeper on low phase noise/jitter, synchronization and > low-noise PLL techniques. > I believe this is a good place for most of these topics. > > > Cheers > Stephane > > > _______________________________________________ > 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.
