1.

A second-order band-pass active filter can be obtained by cascading a low pass second order section having cut off frequency fOH with a high pass second order section having cut-off frequency fOL provided

A. fOH > fOL
B. fOH < fOL
C. fOH = fOL
D. fOH ≤ 1/2fOL
Answer» B. fOH < fOL


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