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sallen key butterworth low pass filter
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Jan Audio:

--- Quote from: soldar on June 09, 2019, 09:44:52 am ---I do not know if it helps but I found this: https://consort3.wordpress.com/2018/06/10/4th-order-single-op-amp-low-pass-filter/

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That is exactly what i need, thank you.


--- Quote from: floobydust on June 09, 2019, 01:36:34 am ---OP are sure you don't need a brickwall filter? Slope from 18kHz to 20kHz sound very steep.

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Yes i would like to have it, do you know a schematic ?


--- Quote from: MagicSmoker on June 08, 2019, 10:51:18 pm ---That's because the Bessel, Butterworth and Chebyshev* all use the same schematic, it is the ratio of the RC networks that determines the response.

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Oh, i normally always change resistors and capacitors from original schematics, can i add my name to it now ?, funny.
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