[time-nuts] Cheap 9.8Mhz Sa.22c's

Magnus Danielson magnus at rubidium.dyndns.org
Sun Jun 2 20:10:53 UTC 2013


On 06/02/2013 10:05 PM, Bob Camp wrote:
> Hi
>
> 9.3804 MHz = (2^15*3) * 100 Hz
>
> 10 MHz = 2^5 * 5^5 * 100 Hz
>
> With a normal integer PLL, your highest lock frequency would be 2^5* 100 Hz = 3200 Hz.

Doable, but you better care about details, and going for a PI-loop is 
the way to go. For lower ratios between locked frequency and comparator 
frequency you can cheat more if you do not have any particular requirements.

Cheers,
Magnus



More information about the Time-nuts_lists.febo.com mailing list