So a while back I wanted to automate a guitar pedal with 5 pots. I was told that an actual digital pot chip is too noisy for an audio circuit. Also using optoisolation was really difficult, I never got it working right. I ended up giving up. Has anyone done this? Is there a well documented way of d…

Reliable digital Pot for audio

stoopkid January 27, 2013, 1:30am 6

The PGA23xx say they are for volume control but I actually need a pot, they don't mention resistance or anything. I need to control an effect pedal.

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