September 2022

Model of the Month

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.

Tip of the Month

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.

Primitive of the Month

filter

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

Latest Issues

May 2026

Estimating Eye Openings and FFE/DFE Settings from Channel SBR

April 2026

Delay, Delay, Delay!

March 2026

EQCHECK, Adaptive Decision-Feedback Equalizer, and More

February 2026

XMODEL at DVCon US, Introducing EQCHECK, and More

January 2026

Generating Random Step Sequences for Stress-Testing, Measuring Single-Bit Responses, and More