Thanks Cecil - I missed that part of the picture - should have read the spec with more intelligence :-)
73, Ray, N0FY SKCC 3704 FH 997 _____ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of k5nwa Sent: Friday, June 13, 2008 12:00 PM To: [email protected] Subject: RE: [softrock40] LTC6903 or LTC6904 as LO ? At 11:36 AM 6/13/2008, you wrote: For less than $3.00 US it is worth looking and it specs out pretty neat except for the top frequency (maybe it will push further with a little help). Nice part to work with from a physical viewpoint. 73, Ray, N0FY SKCC 3704 FH 997 The Si570 has about .4ps jitter at 40MHz, this part has 250ps jitter at 40MHz, and it gets worse as you go higher. A clue is that the jitter is so bad that it's rated in percent. There is no comparison in term of phase noise between the two parts. The Si570 is way cleaner in it's output. Cecil K5NWA www.softrockradio. <http://www.softrockradio.org/> org www.qrpradio. <http://www.qrpradio.com/> com "Blessed are the cracked, for they shall let in the light."
