Quad VCA in a Chip

DIY STUFF
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I came across these, which may be interesting to anyone wanting to make a VCA. As you know, you can never have enough of those …

The AS3364 seems to be in one of Sam’s designs, but there is also an exponentially controlled AS2164, which might interest people:

Linear:

Exponential control:

http://www.alfarzpp.lv/eng/sc/AS2164.pdf

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I think i may have one of those, bought a selection of alfa chips a while back…

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