XMODEL is an extension to a SystemVerilog simulator enabling fast and accurate modeling and simulation of analog/mixed-signal systems such as high-speed I/Os, RF transceivers, DC-DC converters, data converters, etc. XMODEL provides a single simulation platform supporting all the design phases including architecture exploration, functional modeling, circuit simulation, and even physical synthesis (place & route). With XMODEL, designers can verify complex mixed-signal systems with 100~1000x speed over Verilog-AMS or SPICE without having to re-write the testbenches as the design is translated from one abstraction to another.
XMODEL Basic Concepts
XMODEL expresses continuous-time analog signals in an analytical form, which also enables efficient, event-driven computation of the system response whose accuracy does not need to be compromised for speed.
XMODEL Application Examples
XMODEL is ideal for state-of-the-art mixed-signal systems that include large amount of digital logic for feedback control, calibration, and reconfiguration. Most of those systems are impractical with SPICE.
Statistical Simulation Capability
XMODEL is capable of efficient statistical simulation of jitter histogram, BER bathtub curve, and jitter tolerance (JTOL) curve of high-speed I/O interfaces with unprecedented simulation speed and versatility.
XMODEL in Publications
Ji-Eun Jang, Si-Jung Yang, Jaeha Kim, "Event-Driven Simulation of Volterra Series Models in SystemVerilog," IEEE Custom Integrated Circuits Conference (CICC), Sept. 2013 (link).
Si-Jung Yang, Ji-Eun Jang, and Jaeha Kim, "Event-Driven Simulation of Nonlinear Voltage-Controlled Oscillators in SystemVerilog," International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC), June 2013.
Ji-Eun Jang, Myeong-Jae Park and Jaeha Kim, "An Event-Driven Simulation Methodology for Integrated Switching Power Supplies in SystemVerilog," ACM/IEEE Design Automation Conference, June 2013 (link).
Ji-Eun Jang, Myeong-Jae Park, Dongyun Lee and Jaeha Kim, "True Event-Driven Simulation of Analog/Mixed-Signal Behaviors in SystemVerilog: A Decision-Feedback Equalizing (DFE) Receiver Example," IEEE Custom Integrated Circuits Conference, Sept. 2012 (link).
Jaeha Kim, Sigang Ryu, Byoungjoo Yoo, Hanseok Kim, Yunju Choi, and Deog-Kyoon Jeong, "A Model-First Design and Verification Flow for Analog-Digital Convergence Systems: A High-Speed Receiver Example in Digital TVs," IEEE International Symposium on Circuits and Systems, May 2012 (link).
Myeong-Jae Park, Hanseok Kim, Minbok Lee, Jaeha Kim, "Fast and Accurate Event-Driven Simulation of Mixed-Signal Systems with Data Supplementation," IEEE Custom Integrated Circuits Conference, Sept. 2011 (link).