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.
The download of the app is 100% safe. Nathan Chao is the official developer of Active Filter Calculator that can be found in the Educational category. According to the latest info, the tool is rated 3.9 on Google Play.
The latest release was on Sep 27, 2015 and this application was downloaded and set up by over 10 users. Download the installer of Active Filter Calculator 2.3 free of charge and check out users' reviews on Droid Informer. The app works flawlessly on Android 1.6 and above.
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