Chebyshev filters

Chebyshev filters are a type of electronic filter used to allow certain frequencies to pass through while blocking others, with a sharper cutoff than simple filters. They are designed to have a rapid transition between the passband (allowed frequencies) and stopband (blocked frequencies), achieved by allowing some ripple or variation within the passband. This ripple improves the filter’s steepness, making it more efficient at separating frequencies. Chebyshev filters are common in audio processing, communications, and instrumentation where precise frequency selection is important. Their trade-off is a slightly distorted signal within the passband, but they provide a better cutoff sharpness overall.