BandPass IIR Second Order Filter

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44065018-4d9f-4d2d-93eb-0742a9bac463.zip

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Description

SPICE simulation of a bandpass filter that has a 120Hz bandwidth from 1071hz to 1193Hz, with a central frequency fo= 1133hz. The Q factor is fo/Bw = 1133/120 = 9.4. the difference equation for the second-order bandpass filter is y(n) = x(n) + b0*y(n-1) + b1*y(n-2) = x(n) + 1.2*y(n-1)-0.91*y(n-2).

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