[time-nuts] SI532X Chips Close In Spurs (Somewhat Long)

Mark Goldberg marklgoldberg at gmail.com
Tue Jan 9 16:23:23 EST 2018


On Mon, Jan 8, 2018 at 11:37 PM, Hal Murray <hmurray at megapathdsl.net> wrote:

> If you look at the binary of the word that goes into a DDS adder, the ones
> with more low order bits have closer in spurs.


Which of the setting is the binary word going into the DDS adder? I think
this uses a SI5328, and it is not described as a DDS chip in the data
sheet, but I am far from knowledgeable about this device.

I don't know what the output of the GPS is that goes into the SI5328.

Thanks,

Mark



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