[time-nuts] crystal (or MEMS) oscillators with low hysteresis

[Jim Lux]

On 9/7/12 12:20 PM, Bob Camp wrote:
> Hi
>
> I'm guessing that power is also an issue, so cheap OCXO's are out. If that's
> true, I believe you are already at the "cheap vs good" inflection point with
> the cell phone TCXO. At < $2 they are pretty tough to beat. Just the fancy
> crystal in something better is going to give you a big boost in the price.
>

power and size..

Yes.. the cellphone tcxo is probably it.. but I was wondering if 
something else that's not "TC" might not have better hysteresis 
properties.  Short of buying a batch and trying them... which I'll do, 
but before just randomly picking things out of the Digikey catalog, it's 
possible someone has more insight into the inner workings of cheap clock 
oscillators.

For instance, they make inexpensive fairly high performance low power 
oscillators for COSPAS (emergency locator beacon) and wildlife tracker 
use. But you'd never know that they have the higher performance unless 
you asked.



AT the high, expensive end, I've got all the data I need..