cane21
Junior Member level 1
Hi
I just need some clarification regarding a LPF design.
I have a signal f(t)= 4 sin(500t)+ sin(15000t) and want to filter out the high frequencies by at least 20dB.
I’m confused about the 20dB, does that just refer to the roll-off rate?
Would a RC or RLC LPF be better in this case?
Thank you.
- - - Updated - - -
I’m also unclear as to how to determine what the cut-off frequency should be.
I just need some clarification regarding a LPF design.
I have a signal f(t)= 4 sin(500t)+ sin(15000t) and want to filter out the high frequencies by at least 20dB.
I’m confused about the 20dB, does that just refer to the roll-off rate?
Would a RC or RLC LPF be better in this case?
Thank you.
- - - Updated - - -
I’m also unclear as to how to determine what the cut-off frequency should be.