Teszla
Member level 2
In a bode plot for a low pass (or high pass) filter, what is it that determines where the horizontal asymptote will be?
If we have for example a LPF with only a resistor and a capacitor and take the voltage over the C as the output signal, the horizontal asymptote will be at 0 db, since for low frequencies the signal is unfiltered. But if we want the horizontal asymptote to be at another value (i.e. all frequencies to be filtered with -X db), how is this found?
If we have for example a LPF with only a resistor and a capacitor and take the voltage over the C as the output signal, the horizontal asymptote will be at 0 db, since for low frequencies the signal is unfiltered. But if we want the horizontal asymptote to be at another value (i.e. all frequencies to be filtered with -X db), how is this found?