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Sallen-Key Active Butterworth Low Pass Filter Circuit

Enter Fc (required) and ONE of the three component values: R1=R2, C1, C2 to calculate the remaining two filter component values.

Sallen-Key Low Pass Filter
Cutoff Frequency (Fc):
Filter Resistor Values (R1 = R2):
Filter Capacitor Value (C1):
Filter Capacitor Value (C2):