[time-nuts] statistical distribution of initial frequency error in tcxos

[Hal Murray]

jimlux at earthlink.net said:
> Oh, and I don't really care about the frequency variation with  temperature
> (since that can be calibrated) but I'd like really good  phase noise.  For,
> say, <$5 each in qty 1000. 

Neat question.

$5 is above the super low cost range so there might be some technical support 
to answer questions for that type of part.  How many vendors do you have in 
mind?  It might be worth sending them an email to see if you hit one who has 
the data and/or is curious enough to think about the problem rather then 
just-hit-delete when he sees that you only want one reel.

You can probably get part of the answer by measuring a few samples.  If the 
variation over temp is X, then the manufacturing tolerance has to be better 
than TotalSpec-X.  Extra credit if you get a couple more from a different 
distributor so you (hopefully) get a different batch.


-- 
These are my opinions.  I hate spam.