[sdiy] large numbers

Ingo Debus igg.debus at gmail.com
Fri Jul 13 21:11:24 CEST 2018

> Am 13.07.2018 um 20:33 schrieb Tim Ressel <timr at circuitabbey.com>:
> I am playing with using a 64 bit accumulator in a DCO (NCO?) to fix the top jitter problem. The notion is that increased resolution in the increment value will cause less top jitter.

So you only have to add these numbers? Maybe this is a goofy suggestion, but can’t you setup an Excel spreadsheet with 64 columns, one for each bit? Shouldn’t be too hard to recreate a 1-bit full adder in an Excel formula. Maybe you need another 64 columns for the carry bits.

When I work with Excel, I often think of the saying, if your only tool is a hammer, every problem looks like a nail…


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