[time-nuts] DDS'ery narrow scoped.

Luis Cupido cupido at mail.ua.pt
Tue Jun 21 10:48:46 UTC 2011


Yes that right. Is clear that I would have a 10ns jitter,
So the catch would be to find a scheme to spread spurs out or to push 
them away from carrier. Then they would not bother me (would not pass 
the PLL).

lc
ct1dmk.




On 6/21/2011 7:43 AM, Javier Herrero wrote:
> But I forgot to add that the resultant jitter will be also the sampling
> rate period (10ns at 100MHz), so I think that the output will not be too
> clean... so I'm afraid it will not be a great improvement over using
> only the MSB :)
>
> Regards,
>
> Javier
>
> El 21/06/2011 08:37, Javier Herrero escribió:
>>
>> I supppose that then you will need the digital version of the DDS ->
>> Filter -> Comparator think, usign a FIR and outputing the sign of the
>> resultant signal.
>>
>



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