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cadence ADE 仿真 很好用
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cadence学仿真,这个文件挺好用的,对于瞬态,交流,PPS,PAC,THD等等,让你学会!
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Version 5.0
Lab Manual June 4, 2003
Analog Design Environment
1990-2003 Cadence Design Systems, Inc. All rights reserved.
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Confidentiality Notice
No part of this publication may be reproduced in whole or in part by any means (including photocopying or storage in an information storage/retrieval system)
or transmitted in any form or by any means without prior written permission from Cadence Design Systems, Inc. (Cadence).
Information in this document is subject to change without notice and does not represent a commitment on the part of Cadence. The information contained herein
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Table of Contents Analog Design Environment
June 4, 2003 Cadence Design Systems, Inc. iii
Table of Contents
Analog Design Environment
Module 1 Introduction
Lab 1-1 Getting Started ................................................................................................................. 1-1
Background Information............................................................................................ 1-1
Starting the Online Help, CDSDoc............................................................................ 1-2
Starting the Cadence Software................................................................................... 1-3
Lab 1-2 Top-Down System Modeling........................................................................................... 1-5
Design Flow...............................................................................................................1-5
Opening the Peak Detector Circuit ............................................................................ 1-5
Viewing the AHDL Description................................................................................ 1-7
Running Simulation ................................................................................................... 1-8
Choosing a Simulator................................................................................................. 1-8
Setting the Model Libraries ....................................................................................... 1-9
Choosing Analyses..................................................................................................... 1-9
Saving Outputs for Plotting ..................................................................................... 1-10
Running the Simulation ........................................................................................... 1-12
Module 2 Schematic Capture
Lab 2-1 Schematic Entry...............................................................................................................2-1
Creating a Library......................................................................................................2-1
Creating a Schematic Cellview.................................................................................. 2-2
Adding Components to a Schematic.......................................................................... 2-3
Adding Pins to a Schematic....................................................................................... 2-4
Adding Wires to a Schematic .................................................................................... 2-6
Adding Net Names..................................................................................................... 2-6
Saving a Design ......................................................................................................... 2-7
Lab 2-2 Symbol Creation .............................................................................................................. 2-8
Creating a Symbol...................................................................................................... 2-8
Editing a Symbol ..................................................................................................... 2-10
Adding Text to a Symbol......................................................................................... 2-11
Saving a Symbol ...................................................................................................... 2-12
Analog Design Environment Table of Contents
iv Cadence Design Systems, Inc. June 4, 2003
Lab 2-3 Building the Supply Circuit ........................................................................................... 2-13
Creating the supply Cellview...................................................................................2-13
Building the supply Circuit...................................................................................... 2-14
Creating a Symbol.................................................................................................... 2-15
Notes on Symbol Updates........................................................................................ 2-16
Lab 2-4 Building the ampTest Design......................................................................................... 2-17
Creating the ampTest Cellview................................................................................ 2-17
Building the ampTest Circuit...................................................................................2-18
Module 3 Analog Simulation with Spectre Direct
Lab 3-1 Running Simulation ......................................................................................................... 3-1
Starting the Simulation Environment ........................................................................ 3-1
Choosing a Simulator................................................................................................. 3-1
Setting the Model Libraries ....................................................................................... 3-1
Choosing Analyses..................................................................................................... 3-4
Setting Design Variables............................................................................................ 3-5
Notes About Find....................................................................................................... 3-6
Saving Simulation Data ............................................................................................. 3-7
Saving Outputs for Plotting ....................................................................................... 3-8
Viewing the Netlist .................................................................................................... 3-9
Running the Simulation ........................................................................................... 3-10
Saving the Simulator State....................................................................................... 3-11
Viewing Simulation Data with Snapshot................................................................. 3-12
Lab 3-2 Using the Stimulus Template......................................................................................... 3-15
Modifying the ampTest Design................................................................................ 3-15
Creating the Stimulus File ....................................................................................... 3-16
Running Simulation Using the Graphical Stimulus Template................................. 3-18
Lab 3-3 Transient Operating Point Analysis, “infotimes” .......................................................... 3-22
Overview of infotimes ............................................................................................. 3-22
Entering the Time Points for Analysis..................................................................... 3-24
Lab 3-4 Captab ............................................................................................................................ 3-27
Overview of Captab Option.....................................................................................3-27
Selecting the Captab Option .................................................................................... 3-27
Table of Contents Analog Design Environment
June 4, 2003 Cadence Design Systems, Inc. v
Module 4 Displaying Simulation Results
Lab 4-1 Displaying Results with the Waveform Window ............................................................ 4-1
Overview.................................................................................................................... 4-1
Using the Waveform Window ................................................................................... 4-1
Modifying the Waveform Window Display .............................................................. 4-4
Choosing a Plot Style................................................................................................. 4-5
Setting Axes Options ................................................................................................. 4-6
Using Direct Plot........................................................................................................ 4-7
Using X-Y Plots......................................................................................................... 4-8
Modifying Titles and Labels...................................................................................... 4-9
Calculating Phase Margin........................................................................................4-13
Lab 4-2 Saving the Simulation Session....................................................................................... 4-16
Saving the System Environment to a File................................................................ 4-16
Notes on Save Defaults............................................................................................ 4-17
Saving the System Session ...................................................................................... 4-17
Restoring the System Session.................................................................................. 4-18
Running a Simulation in the Restored Environment ............................................... 4-18
Lab 4-3 Displaying Interpreted Labels Near Schematic Components........................................ 4-20
Starting the Label Display Command...................................................................... 4-20
Controlling Pin Labels............................................................................................. 4-20
Controlling Instance Labels..................................................................................... 4-21
Saving a Label Display............................................................................................ 4-22
Turning Off Label Displays.....................................................................................4-23
Controlling Parameter Labels .................................................................................. 4-23
Lab 4-4 Annotating Simulation Results to the Schematic Window............................................ 4-25
Viewing the amplifier Schematic Design ................................................................ 4-25
Annotating DC Operating Points.............................................................................4-25
Annotating Selected DC Operating Points .............................................................. 4-26
Notes on Label Display............................................................................................ 4-28
Annotating Other Information ................................................................................. 4-28
Annotating DC Voltages.......................................................................................... 4-28
Saving Annotated Labels......................................................................................... 4-29
Restoring Label Display Defaults............................................................................ 4-29
Printing Annotation Data to a Display Window......................................................4-30
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