Active Filter Calculator

Features Active Filter Calculator

Use as a quick db calculator for 1st order active filters.This app works in 2 modes.
In result mode you enter all Rs and C and f.
The app will return with the db gain at the frequency entered.
In design mode you enter just desired cutoff fc, Ri, C and midband db gain.
The app will return with the correct amp gain Rf and R for fc entered.