[GPS_Standard] Crystek OCXO

David M. Witten II wittend at wwrinc.com
Tue Jan 29 14:00:25 EST 2008


Has anyone ever had any experience with the Crystek CO27VS12DE-02 10.000 
MHz OCXO?  I have one (new) and would like to use it with VE2ZAZ's 
GPS-REF Frequency Standard board.  I could not get one of the HP parts 
for a price that I was comfortable with (for a used component of unknown 
  provenance).

The Crystek documentation claims the following:

	12 v. Supply
	350 ma Warm Up
	100 - 110 ma steady state
	+3 dBm typical output into 50 ohm load
	Tuning range +-1 ppm (min) to +-1.5 ppm (max)
	  over a 0 vdc (min) +5 vdc (typ.) +10 (max) control range
	Phase noise:
		 -102 dBc/Hz @ 10 Hz offset
		 -132 dBc/Hz @ 100 Hz offset
		 -150 dBc/Hz @ 1  kHz offset
		 -152 dBc/Hz @ 10 kHz offset

Is there anything anyone can suggest that I should consider about this 
strategy?  How would I map the control voltage range to the -5v to +5v 
range without introducing error?

Any suggestions will be appreciated.

-- Dave


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