December 2022

Tutorial Updates

Modeling and simulation of high-speed I/O interfaces with XMODEL

This popular tutorial is now updated with channel crosstalk modeling, voltage-mode transmit equalizer, dither suppression in bang-bang CDRs, and new scripts for BER bathtub, JTRAN, and JTOL simulations.

Tip of the Month

Measuring the coverage of a finite-state machine (FSM) in SystemVerilog

Here is a simple SystemVerilog testbench that can measure the state and transition coverages of your FSM simulation.

Model of the Month

Modeling amplifiers with output voltage and slew rate limits

Check out this simple way of limiting the output voltage and slew rate using the new 'vlimit' and 'ilimit' primitives.

Primitive of the Month

ilimit

This primitive models a nonlinear resistor element which can keep the current flowing through the element within the specified limits.

Latest Issues

April 2025

Modeling NAND Flash Memory, Measuring Comparator's Offset, and More

March 2025

Silicon Photonics Simulation with XMODEL, Measuring I-V Curves, and More

February 2025

Catching Elusive Voltage Spikes with Assertions, Modeling VCO with Extra Digital Inputs, and More

January 2025

Modeling Delta-Sigma Digital-to-Analog Converters, XMODEL at DVCon US, and More

December 2024

Modeling Mixed-Signal Processing-in-Memory Circuits, Filtering Phase Noise, and More