Amateur Extra › E7 Practical Circuits › E7C05
E7C05
Which filter type has ripple in the passband and a sharp cutoff?
Pick an answer to check it.
Answer: D. A Chebyshev filter
A Chebyshev filter trades some ripple in the passband for a sharper cutoff. A Butterworth filter is the opposite: very flat passband but a more gradual cutoff.
Tip: Chebyshev: ripple and a steep skirt.