3. (20 points) Determine the order N of the Butterworth filter for which Aman = 0.5 dB, Amin = 20 dB, and the selectivit
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3. (20 points) Determine the order N of the Butterworth filter for which Aman = 0.5 dB, Amin = 20 dB, and the selectivit
3. (20 points) Determine the order N of the Butterworth filter for which Aman = 0.5 dB, Amin = 20 dB, and the selectivity ratio co/00 = 1.7. What is the actual value of minimum stopband attenuation realized? If Amin is to be exactly 20 dB, to what value can Amax be reduced?
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