March 2021

SystemVerilog OOP Testbench for Analog Filter: A Tutorial (Part 2)

This second part of the article describes how to write an OOP-style SystemVerilog testbench that generates randomized test sequences, check analog assertions, and report coverages for an analog circuit with multiple operating modes.

XMODEL Introduction

New to XMODEL? Get up to speed by watching this latest video introducing XMODEL, GLISTER, and MODELZEN.

Modeling power-supply induced jitter (PSIJ) effects in clock buffer chains

Learn how to model the PSIJ effects in a clock distribution network with a 'delay_to_clk' primitive and measure its frequency characteristics using a 'probe_ac' primitive.

2021.03 Release

This release adds many improvements and bug fixes including the MODELZEN support for unpacked arrays of 'xbit' and 'xreal' signals and a property for grouping auxiliary instances with the main instance.

Latest Issues

March 2024

UVM Testbench for LDOs, Modeling a Buffer with Variable Rise/Fall Delays, and More

February 2024

XMODEL at DVCon US, Modeling D-PHY Transceivers, and More

January 2024

Modeling a Buffer with Arbitrary Rising and Falling Transition Waveforms, and More

December 2023

XMODEL at ASP-DAC 2024, Modeling Time-of-Flight Sensors, and More

November 2023

Modeling a Thermal Sensor Circuit, Measuring the Transmitter Output Resistance, and More