The thing is, I'd like to be able to change the voltage very quickly
The thing is, I'd like to be able to change the voltage very quickly and as I understand it this requires that I build a rather complex high order LP filter.
...and I'm wondering if there are any ready made DAC's that I could use instead?
My knowledge of bitdepth/bitrates is pretty incomplete, but would 256 bits basically give me 256 values between 0 and 5v? If so, that should be fine - I don't really need any more than a couple of octaves anyway to be quite honest.
DVDDoug - are you implying that I needn't actually use a filter at all? I don't actually own the synth so I can't test it just yet, but after researching on the net everyone who is also using an Ardunio to create CV seems to use a filter.