[sdiy] Generating a large number of CV outputs

[mskala at northcoastsynthesis.com]

On Fri, 8 Dec 2023, Mike Bryant wrote:

> I just had a read of this and generally very well put.  However you seem to
> miss out mentioning PDM  between the sections on PWM and Delta-Sigma.  This
> gives faster settling time of DC voltages than PWM, as well as other
> advantages when producing audio as its easier to push the noise out of
> band.   

I'm not sure PDM is meaningfully different from delta-sigma at the level
of detail I included in the posting.  The things I would want to say about
it would be the same things I did say about delta-sigma.  Is there an
important example of a PDM scheme that is not a form of PWM nor
delta-sigma modulation?

-- 
Matthew Skala
North Coast Synthesis Ltd.