Question: A broadband low-pass unity-gain Butterworth filter operates in a system that has a cutoff frequency of 25kHz. Design this filter to have the following specifications: (a) passband gain of 20dB and (b) the gain should be down at least -40dB at 100kHz, assume µ741 OPAMPs and use 750 pF capacitors.
***I understand that the magnitude of a Butterworth filter is |H(jω)| = 1/(√(1+(ω/ωc)^2n) and that my ωc in this situation is 25kHz. But after that I'm lost, I know I'm suppose to find the transfer function and work my way backwards but I'm having trouble and was wondering if anybody could help?***
***I understand that the magnitude of a Butterworth filter is |H(jω)| = 1/(√(1+(ω/ωc)^2n) and that my ωc in this situation is 25kHz. But after that I'm lost, I know I'm suppose to find the transfer function and work my way backwards but I'm having trouble and was wondering if anybody could help?***