Behavioral Modeling with Verilog-AMS

Length: 2 days

Course Description

In this advanced Engineer Explorer course, you explore an in-depth approach to behavioral modeling of analog and mixed-signal design blocks and systems.

In this two-day course, you first examine digital modeling concepts and later analog and mixed-signal modeling concepts. You create parameterized Verilog-AMS models for analog and mixed-signal blocks and verify their functionality and performance using the Spectre^® AMS Designer simulator in the Virtuoso^® environment or the Xcelium™ Mixed-Signal Simulator environment.

As optional modules, you identify how to handle analog interdependencies, modeling in the frequency domain, and the Waveform Specification (wave) feature in the ADE Assembler Environment for validating models, along with basic information on the Waveform Viewers like the Virtuoso Visualization and Analysis and SimVision graph windows to examine the mixed-signal simulation results.

Learning Objectives

After completing this course, you will be able to:

• Apply the concepts of behavioral modeling and know when to employ models to your advantage
• Create Verilog, Verilog-A, and Verilog-AMS behavioral models to perform the given functions
• Verify the functionality and performance of the models that you create using the Spectre AMS Designer simulator
• Generate a library of common functions for smoothing discontinuous behavior and model common analog effects
• Explore some of the best practices for modeling analog components
• Interpolate with table models and explore the different system tasks and functions in Verilog-AMS

Software Used in This Course

• Spectre AMS Designer
• Spectre Simulators (MMSIM)
• Xcelium™ Single Core
• Virtuoso ADE Explorer
• Virtuoso ADE Assembler
• Virtuoso Visualization and Analysis XL
• SimVision™ Waveform Display

This course uses Xcelium 20.09 with IC 6.1.8 ISR17 and SPECTRE 20.1 software. Both the command-line control-based model with the XRUN executable (AXUM), and the Virtuoso-based flow (AVUM) that uses Text Editors for coding and performs simulation using Spectre AMSD in the ADE Explorer are covered in the lab exercises.

Software Release(s)

XCELIUM 20.09-s010, IC 6.1.8 ISR17, SPECTRE20.1 (ISR4)

Modules in this Course

• Getting Started with AMS Modeling
• Refresher in Behavioral Verilog
• Verilog-AMS Language Constructs and Simulation
• Continuity Issues in Modeling
• Modeling Common Analog Effects
• Best Practices for Analog Modeling
• Verilog-AMS Mixed-Signal Operation
• Simulator Functions in Verilog-AMS
• General Modeling Procedures

(Optional Appendixes)

• Analog Interdependencies
• Modeling in the Frequency Domain
• Waveform Specification in ADE Assembler
• AMSD Licensing and xrun Options
• Waveform Viewers
• Verilog-A Usage and Language Summary
• Verilog-HDL Usage and Language Summary

Audience

• Analog/Mixed-Signal IC Designers
• Analog/Mixed-Signal Verification Engineers
• CAD Engineers
• Library Developers

Prerequisites

You must have experience with the following software:

• AMS Designer Simulator
• Virtuoso ADE Explorer

Or you must have completed the following courses:

• Analog Modeling with Verilog-A

• Mixed-Signal Simulations Using Spectre AMS Designer

Related Courses

• Analog Modeling with Verilog-A
• Mixed-Signal Simulations Using Spectre AMS Designer
• Behavioral Modeling with VHDL-AMS

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