March 2025

Technical Paper

Modeling and Simulation of Silicon Photonics Systems in SystemVerilog/XMODEL

This ASP-DAC 2025 paper explains how XMODEL's event-driven simulation can be extended to silicon photonic systems. Learn more

Model of the Month

Measuring the I-V characteristics of transistors

Can you build an XMODEL testbench measuring the Ids-Vds or Ids-Vgs characteristic curves of a transistor? Learn more

Tip of the Month

Suppressing 'X' and 'Z' values in digital-type inputs

The latest XMODEL release introduced 'valueX' and 'valueZ' parameters to enable customized handling of 'X' and 'Z' values of digital-type inputs. Learn more

Primitive of the Month

buf_xbit

The 'buf_xbit' primitive can be used to add inertial delay, set an initial value, or suppress 'X' and 'Z' values in digital inputs. Learn more

Latest Issues

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

November 2024

Modeling a Digital LDO, Tips on Modeling High-Pass Filters, and More