September 2022

Modeling an RC polyphase filter

Here is a simple way of modeling a passive polyphase filter that can generate 4-phase signals from 2-phase sinusoidal inputs.

Designing a common-class filter

Check out this Python script that designs a Butterworth, Bessel, Chevyshev, or elliptic filter according to your specifications and computes the model parameters for the 'filter' primitive.

filter

This primitive models a linear filter, of which transfer function is specified using a set of pole/zero frequencies.

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