[time-nuts] Fwd: 10MHz to 80MHz frequency multiplier suggestions
Hal Murray
hmurray at megapathdsl.net
Fri Feb 4 19:41:26 UTC 2011
> That CVHD-950-100 looks to be just the ticket. Nice price/performance. Thank
> you for the recommendation! :)
I just looked at the data sheet. It says:
Frequency Pulling: ±20ppm APR Min.
I was going to ask what APR meant. In case anybody else is also curious...
The CVS575-500 data sheet says "Absolute Pull Range".
Google found these (and more):
http://www.vectron.com/products/appnotes/abspullrange.pdf
http://www.crystek.com/microwave/appnotes/AbsolutePullingRangeAPR.pdf
The Vectron version doesn't mention the initial calibration. The Crystek version does.
It looks like they are trying to tell me that it's the number a designer needs: I can tune anywhere within that band for any temp/voltage/aging/initial-calibration.
They don't specify a lifetime so you might have to round down a bit if you expect your box to last a long time.
--
These are my opinions, not necessarily my employer's. I hate spam.
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