May 2021

Model of the Month

Delay-locked loop with false-lock detector

This model describes a delay-locked loop (DLL) that can recover from false-lock conditions. It is modeled after the DLL published by S. Byun, et al. in 2003.

Q&A of the Month

Can XMODEL simulate both voltages and currents?

Learn more about the XMODEL's capability of simulating both the voltage and current waveforms of circuit-level models.

Primitive of the Month

abs_func

This primitive computes the absolute value of the xreal-type input.

Upcoming Webinar

Writing OOP-style SystemVerilog testbenches for analog IPs

Join this webinar on how to write an OOP-style SystemVerilog testbench for analog/mixed-signal circuits, performing random and directed tests with analog assertion checks.

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