[sdiy] digital control of CV

[jure zitnik]

ok, so it can be done. still, i'd prefer through-hole.

but we got carried away a bit - i still need ideas, your experience,
what's worked for you in
the past.

i'd be needing 16-24 CV channels for stuff like envelopes, filter
settings, vco settings... i realize i'd need a more accurate DAC for
VCO pitch control, but how much bitdepth really?

also, how would i go about making switches (like VCO waveform)
digitally controlled?

no matter if i decide for muxing or multiple DACs, i'd still like to
know how fast are those chips, would a serial multichannel (like 8
channels) DAC be maybe too slow for stuff like fast envelopes? what
about demuxing, how many channels would i be able to get on a single
line (12 bits for instance)...

those are the questions in my head right now, so if anyone can shed
some light on the subject, i'd be really happy!

jure

On 9/3/07, Seb Francis <seb at burnit.co.uk> wrote:
>
> Samppa Tolvanen wrote:
> >
> > Pin _centers_ are 0.5mm apart :D
> >
> >
>
> Well this is certainly possible with the right technique.  0.65mm pitch
> is quite easy so I wouldn't imagine 0.5mm is much harder.
>
> I wrote a tutorial here:
> http://burnit.co.uk/sdiy/index.php?page=4xd&subpage=soldering
> (pic of soldered 0.65mm pitch IC at the bottom of the page)
>
> Pin for pin it actually works out quicker than soldering thru-hole once
> you get the technique down.  Plenty of flux is the key!
>
> Seb
>
>
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
>