Opening the book…

Figure \(\PageIndex{1}\)
You will find the following formulas useful:
\(f_c = 1/(2 \pi R_tC_t)\)
\(A_v\) (band-pass gain) = \(R_2R_4/(R_1R_3)\)
\(Q = (R_x+R_4)/(2R_x)\); where \(R_x = R_q||R_3\)
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