FIR filter

[bubulindo]

Hello,

i need to design a filter to "clean" the signal i'm feeding to my A/D converter from 50Hz noise.

I would like to know how can i calculate the coefficients to do this.

Best regards,
Carlos Cardoso

Best regards, Carlos Cardoso

 

[rodar]

Hi
If your filtering before A/D conversion
try searching for a
twin T notch filter on internet.

It is analog and can be made quite sharp in
rejection of a frequency

rodar

 

[cbarn24050]

Hi, the easy way is to syncronise the ad sampling to the line.