[time-nuts] DDS'ery

Jim Lux jimlux at earthlink.net
Mon Jun 20 18:50:39 UTC 2011

On 6/20/11 8:39 AM, Luis Cupido wrote:
> Well, if we really need to filter it out
> we better filter the MSB and square it
> again...
> Why having a DAC for ???

Spur content heading into the filter.. the sine table and DAC greatly 
reduces the harmonic content of the output, which makes filtering easier.

You could think of the cos table and DAC as a specialized filter

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