The WEA321250LPF25CH5ST55 is an active 5th order Chebyshev Low Pass filter, synthesized in a Leapfrog architecture. It has programmable cutoff frequency ranging from 32.5MHz to 1.25GHz with ... Low ...

The circuit in Figure 1 was given to me some while ago as a three-pole, active 1 dB Chebyshev lowpass filter. I never confirmed that its transfer function complied with the Chebyshev polynomial, but ...