For the filter in Figure P14-4, replace the three resistors with three capacitors, maintaining the same subscripts,
Question:
For the filter in Figure P14-4, replace the three resistors with three capacitors, maintaining the same subscripts, and the two capacitors with two resistors, again maintaining the same subscripts. Show that the circuit's transfer function is
\[
T(s)=\frac{-R_{1} R_{2} C_{1} C_{3} s^{2}}{R_{1} R_{2} C_{2} C_{3} s^{2}+\left(C_{1}+C_{2}+C_{3}ight) R_{1} s+1}
\]
(a) Find the filter's type, its cutoff frequency and its \(\zeta\) in terms of the \(R \mathrm{~s}\) and \(C \mathrm{~s}\).
(b) Then using \(C_{1}=C_{2}=C_{3}=0.2 \mu \mathrm{F}, R_{1}=3.33 \mathrm{k} \Omega\) and \(R\) \({ }_{2}=7.5 \mathrm{k} \Omega\), find the filter's type and roll-off, its cutoff frequency and its \(\zeta\). Use MATLAB to plot the filter's Bode diagram. Build and simulate your circuit in Multisim and compare the results with MATLAB's.
Step by Step Answer:
The Analysis And Design Of Linear Circuits
ISBN: 9781119913023
10th Edition
Authors: Roland E. Thomas, Albert J. Rosa, Gregory J. Toussaint