[sdiy] Seb's Fat Controller (was DAC via Mux)

Justin Owen juzowen at googlemail.com
Fri Nov 20 10:58:58 CET 2009


-----Original Message-----
From: Eric Brombaugh [ebrombaugh1 at cox.net]

>Check Seb Francis' Fat Controller MIDI2CV schematic for a good example of how this is done:

http://burnit.co.uk/sdiy/index.php?page=fatcontroller

Thanks for this link Eric.

I'm not sure if Seb is reading this - but the one query I have about his S&H circuit is that there doesn't seem to be any switching/sampling part to it. The Paia Fatman S&H uses a 4016 switched by the micro but Seb's Mux output seems to go straight into the S&H cap/op amp combo.

Anyone care to explain that to me? Seb?

I'd happily ditch two 4016/4066s if I could...

Cheers,

Justin







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