Butterworth 18dB Lowpass

From HwB

(3st order, 18 dB/octave, Lowpass)

Image:cir_ActiveFilter3L.png

R=4.7k-10 kΩ

Ca=\frac {2.000}{2\pi \times Fc \times R}

Cb=\frac {0.500}{2\pi \times Fc \times R}

Cc=\frac {1.000}{2\pi \times Fc \times R}

Units: R [Ω], Cx [F], Fc [Hz]

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