hello,
So for a basic RC filter, the cut-off frequency is 1/2πRC. Now, for a given cut-off frequency, I can make another filter with double the resistance and half the capacitance. By the equation, the cut-off frequency is unchanged.
My question is, how would these filters differ in performance (if at all)? Do their transient responses (overshoot and ringing) differ? Is there a general rule-of-thumb to decide which RC pair is best for a given cut-off frequency?
So for a basic RC filter, the cut-off frequency is 1/2πRC. Now, for a given cut-off frequency, I can make another filter with double the resistance and half the capacitance. By the equation, the cut-off frequency is unchanged.
My question is, how would these filters differ in performance (if at all)? Do their transient responses (overshoot and ringing) differ? Is there a general rule-of-thumb to decide which RC pair is best for a given cut-off frequency?