Your client asks you to design a lowpass Butterworth filter

Your client asks you to design a lowpass Butterworth filter with the following specifications: a desired peak passband ripple R_p of 2 dB, the minimum stopband attenuation R_s of 6 dB, the passband edge frequency omega_p of 1000 rad/sec, and stopband edge frequency omega_s of 3000 rad/sec. Estimate the order for this filter. Estimate the cut - off frequency for this filter.

Solution

2) Cut off Frequency:

fc=1/2CR(this formula for cutt-off frequency)

1)