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Control voltages and philosophy for the PSoCaMorph | Cypress Semiconductor

Control voltages and philosophy for the PSoCaMorph

I uploaded the first tranche of technical thinking about PSoCaMorph to the website http://www.elektor-projects.com/project/the-psocamorph.12269.html so you can now go and check that out.  Soon I'll put a description of the planned VCO core - it should be useful for other applications too.  After that comes the bit you (well some of you) have all been waiting for - the Voltage Controlled Filter.  OK, it's going to have quite a few external components because PSoC wasn't designed to do these continuously-controlled tasks.  But if you want to make a real oscillator and filter rather than do it all in the digital domain (next Filter Wizard on that out soon, by the way), this should be a good way to go.  I suspect that once the oscillator signal is filtered, though, we'll want to get into the digital domain.  That will happen through PSoC's delta-sigma ADC.  After that... well, I've started mulling over how one would do a credible chorus effect, to make it sound like you're using multiple not-quite-synchronized oscillators.  I think that's going to work better than making multiple actual oscillators, and trying to stop them locking to each other in ways you can't control.  There are some dev kits up for grabs for those of you that really do want to participate and contribute.  Probably a beer or two too, for those of you that actually get these circuits working and (a) can demonstrate them and (b) live somewhere I can get to easily!  best / Kendall

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