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HwB: Active Filter: Bessel 12dB Highpass

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Active Filter: Bessel
(2st order, 12 dB/octave, Highpass)

2nd order Bessel Highpass

C=4.7n-10nF
Ra=1.1017/(2*pi*Fc*C)
Rb=1.4688/(2*pi*Fc*C)

Units: Rx [Ohm], C [F], Fc [Hz]

Contributor: Joakim Цgren
Source: ?
Please send any comments to Joakim Цgren.