[A6] Internal electronics, Found it!

[David Evans]

On Wed, Jan 29, 2003 at 04:28:26AM +0100, dj wrote:
> Thats probably the main reason, the CPU has to latch the DAC value, then
> wait for the mux cap to settle the charge, and in between CPU takes the next
> DAC and so on.

  Does the CPU do this on its own or is there hardware assist?  Jeff!  :)

> > (So, in an update cycle, you are simultaneously charging the s&h
> > for pitch CV on VCO 1a, 5a, 9a, 13a - then pitch CV for VCO 1b, 5b, 9b,
> 
> Possibly so , but still, most times in a multitimbral setup for example the
> chance
> of CV's  being completely different due to different pitches, filter cofficients
> etc etc are very high.!

  I think by "simultaneously" he meant that you run through the "TDM" cycle
of the muxed CVs at (roughly) the same, not that they all get the same CVs.

> VCO's a tune table is a neat solution to a design problem, its also a short cut
> to easyied up silicon design requirements and design time who equals to cost in
> a very unpleasant way!! :-:
> 

  Hey--it's cheap and it works!  What more could you ask for?  :)

-- 
David Evans          (NeXTMail/MIME OK)             dfevans at bbcr.uwaterloo.ca
Ph.D. Candidate, Computer/Synth Junkie     http://bbcr.uwaterloo.ca/~dfevans/
University of Waterloo         "Default is the value selected by the composer
Ontario, Canada           overridden by your command." - Roland TR-707 Manual