Sallen-Key Filters

245

04:52:50

Useful and fairly simple 2nd-order filters -- 12dB/octave, twice that of single-stage RC filters. The component values don't have to be quite so odd if you can accept a change in Q: softening the curve between pass-band and stop-band.

Not my work. Invented by Sallen and Key, apparently, and transcribed from:
http://sound.whsites.net/articles/active-filters.htm#s3

Sometimes these get adjusted as I find suitable values for other circuits.

published 8 years ago

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