[time-nuts] AD9913 programmable modulus DDS. was: Re: An (unknown?) nasty feature of the DDS principle for time nuts applications

Poul-Henning Kamp phk at phk.freebsd.dk
Tue Jan 25 14:59:40 EST 2011


In message <4D3F06CA.8020505 at karlquist.com>, "Richard (Rick) Karlquist" writes:

>What you need is the AD9913.  It has a programmable modulus.
>Now you're not stuck with 2^32.  You can pick any convenient
>value.

Isn't it more like M/N applied to DDS, than a variable MODULUS ?

As far as I know the sine lookup-table is always modules-2, isn't it ?

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Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
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