I want to design a 3rd order LPF butterworth, i need to know the components and the exact values please..thanx

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I want to design a 3rd order LPF butterworth, i need to know the components and the exact values please..thanx

this filter will be further used to complete a project concerning a small telephone switch

2007-03-23 11:43:10 · 2 answers · asked by Amr 1 in Science & Mathematics ➔ Engineering

2 answers

Try here --

http://en.wikipedia.org/wiki/Butterworth_filter#A_Simple_Example

2007-03-23 11:49:10 · answer #1 · answered by Gene 7 · 0⤊ 0⤋

I need to know the cutoff frequency, and the input and output impedance to get you exact values.

the form will be a double PI network of a capacitor, an inductor, and a capacitor. with 2 or 3 resistors on the input as a 'pad'.. but I need F0 and impedances to get values.

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2007-03-23 18:51:05 · answer #2 · answered by tlbs101 7 · 0⤊ 0⤋