> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Bruce Griffiths > Sent: Monday, March 31, 2008 11:28 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Adding prescaler to HP 5334B > > Didier Juges wrote: > > I don't believe these are RF detectors, they look like > switching diodes. > > > > Even though they are Shottkys, the spec says they have a > 5nS reverse > > recovery time ??? > > > > That would be too slow for a 1 GHz counter. > > > > I use a lot of BAV99, and while not being Shottkys, they have about > > the same reverse recovery and 15% of the capacitance. > > > > Didier KO4BB > > > Didier > > HSMS282X series appears usable to 4GHz. > HMPS282X series are usable to 6GHz. > Mouser carry some of these. > > Bruce >
RF Basic Store on eBay has them, I just bought a few varactors and National Semi PLL chips for my 2.3 GHz PLL project from him, and I did not think of checking for Schottkys... They are just a few $ for 100 pcs, except that he only has common anode and common cathode at the moment, so maybe Mouser is a better bet. Interestingly, Mouser crosses the BAT54S to the HSMS-2822, they are not even in the same ballpark. I wonder what kind of application could use either... Thanks Bruce, Didier Internal Virus Database is out-of-date. Checked by AVG. Version: 7.5.519 / Virus Database: 269.21.8/1339 - Release Date: 3/22/2008 4:43 PM _______________________________________________ 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.
