Active Filter: Bessel
(2nd order, 12 dB/octave, Lowpass)

2nd order Butterworth Lowpass

R=4.7k-10 kOhm
Ca=0.9076/(2*pi*Fc*R)
Cb=0.6809/(2*pi*Fc*R)

Contributor: Joakim Ögren

Source: ?

Please send any comments to Joakim Ögren.