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Error and Warning Messages Warnings Related to Eldo Premier Warning Number Warning 1021163 Warning 1021164 Warning 1021165 Warning 1021166 Warning 1021168 Warning 1021172 Warning 1021178 Warning 1021179 Warning 1021180 Warning 1021182 Warning 1021185 Warning 1021186 Warning 1021191 Warning 1021199 Table A-17. Warnings Related to Eldo Premier (cont.) Description Default reduction network type set to RC (TICER) .REDUCE TICER: PORTMERGE not implemented in name Due to the reduction process some outputs may not be available. Options REDUCE_KEEP_NODE=nodename and REDUCE_KEEP_INSTANCE=instance_name may be used to enforce the availability of some specified node voltages or branch currents respectively. Alternately, the global REDUCE_KEEP_OUTPUTS=YES option may be used to enforce the availability of all required outputs. This option may however hamper more strongly the reduction process. DSPF: device kind '%c' is not supported (yet) in DSPF file. Therefore, device ``name'' is not added. NET ``name'' could not be exported (limitation of current implementation) OBJECT ``name'': parameter KR is not supported with h_mode reltol=%g vntol=%g abstol=%g. This setting gives higher accuracy than default tuning, but the simulation time may increase. Newton: No convergence at time %gns ; try to pass over... DSPF: subckt name not defined in pre-layout. NODE ``name'': has been replaced by a DSPF network SUBCKT 'name': duplicate object 'name' (from DSPF) DSPF: port ``name'' appears in several ``|I'' interfaces. Only the first one is taken into account. Resistor name with small value is removed. Therefore, I(name) will not be computed Multi-threading mode disable : name 1452 Eldo® User's Manual, 15.3
Appendix B Troubleshooting Most <strong>user</strong>s of any product will from time to time experience problems in its use. This appendix is intended to provide an easy to use quick reference from which such problems can be identified and corrected. Common Netlist Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1453 Tips for Troubleshooting and/or Improving Convergence and Performance . . . . . . . . 1454 Tips for Troubleshooting Performance Bottlenecks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1454 Troubleshooting File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1455 Common Netlist Errors There are a number of common errors to look out for when producing an input netlist: • First Line of a File Not the Title. The first line of a netlist must be the title of the circuit. If part of the circuit description is found on the first line, it will be ignored. If the first line is a blank, this will be taken as the title line. • Correct Usage of the Simulator Accuracy (eps, vntol, reltol). The simulator accuracy parameters are the most important Eldo parameters—they must be correctly initialized. Tip For more details refer to the Speed and Accuracy chapter. • Correct Units on Devices. It is very important to make sure that all the components in the netlist have correct units; one mistake can have a large effect. An example of this is specifying units of farads instead of picofarads. • Missing Model. Make sure that model definitions are available to the simulator, either directly in the netlist, or in a referenced library. • Missing Voltage Sources. Independent voltage sources defined to have a voltage of 0V may be removed by Eldo to simplify calculations. If you wish to use a voltage source as a current probe, avoid Eldo® User's Manual, 15.3 1453
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Eldo® User's Manual Release 15.3
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Table of Contents Chapter 1 Introdu
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Table of Contents Preparing and Ins
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Table of Contents Chapter 7 Running
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Table of Contents Eldo Reduction .
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Table of Contents Chapter 12 Statis
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Table of Contents Simulating a Bloc
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Table of Contents atanh . . . . . .
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Table of Contents xmin . . . . . .
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Table of Contents COS. . . . . . .
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Table of Contents One Step Relaxati
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List of Figures Figure 1-1. Cascade
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List of Figures Figure 14-1. Mixed-
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List of Tables Table 1-1. Documenta
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Chapter 1 Introduction to Eldo The
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Introduction to Eldo Getting Starte
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Introduction to Eldo Getting Starte
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Eldo Input and Output Files Introdu
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Introduction to Eldo Eldo Documenta
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Introduction to Eldo Documentation
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Chapter 2 Running Eldo This chapter
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Running Eldo Multi-Threading Eldo S
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Running Eldo Multi-Threading Eldo S
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Running Eldo Simulation Connection
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Running Eldo Simulation Connection
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Running Eldo Eldo Initialization Fi
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Running Eldo Location Maps Location
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Running Eldo Performance Bottleneck
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Running Eldo Statistics File Statis
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Running Eldo Additional Tools and U
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Chapter 3 Eldo Premier This chapter
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Eldo Premier Overview of Eldo Premi
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Eldo Premier Automatic Activation o
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Eldo Premier Handling Matrix-Like C
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Eldo Premier Eldo Premier Output El
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Eldo Premier Forcing Elaboration Ti
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Netlist reduction is activated with
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Eldo Premier Supported Commands Tab
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Eldo Premier Supported Commands Tab
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Table 3-3. Eldo Premier—Supported
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Eldo Premier Supported Models Enabl
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o Eldo Premier Other Supported Func
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Eldo Premier Miscellaneous Limitati
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Chapter 4 Eldo Netlist Setup This c
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Eldo Netlist Setup Netlist Structur
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Subcircuit Definitions and Calls El
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Eldo Netlist Setup Simulator Comman
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Eldo Netlist Setup General Aspects
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Eldo Netlist Setup Case-Sensitivity
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Eldo Netlist Setup Numerical Values
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Eldo Netlist Setup Functions, Opera
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Function PWL_LIN(xvalue, interp, x1
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Notes Eldo Netlist Setup Arithmetic
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Eldo Netlist Setup Operators Operat
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Eldo Netlist Setup Operators Bitwis
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Eldo Netlist Setup Expressions Spec
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Eldo Netlist Setup Directives Direc
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Eldo Netlist Setup Directives Inter
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Eldo Netlist Setup Directives to Po
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Eldo Netlist Setup Working With Sub
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Eldo Netlist Setup Subcircuits Spec
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Eldo Netlist Setup Subcircuits Rela
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Eldo Netlist Setup Device Libraries
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Eldo Netlist Setup Encrypting Libra
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Eldo Netlist Setup encrypt_eldo Too
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Eldo Netlist Setup encrypt_eldo Too
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Eldo Netlist Setup Protection of En
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Eldo was not able to find the reque
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Eldo Netlist Setup Running Multiple
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Eldo Netlist Setup Merging Instance
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Chapter 5 Simulator Compatibility E
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Simulator Compatibility Hybrid Comp
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Simulator Compatibility Devices in
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Simulator Compatibility Devices in
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Simulator Compatibility Commands in
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Simulator Compatibility Commands in
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Simulator Compatibility Options in
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Netlist in Compat Mode Some aspects
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Simulator Compatibility Arithmetic
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Simulator Compatibility Spectre Com
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Simulator Compatibility Spectre Com
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Eldo can be launched on the Spectre
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Simulator Compatibility Working wit
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Simulator Compatibility Troubleshoo
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Error Code Related Topics Spectre C
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Simulator Compatibility Spectre to
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spect2el Command Reference Simulato
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Simulator Compatibility spect2el Co
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Simulator Compatibility spect2el Co
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Chapter 6 Setting Up An Analysis Th
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DC and Operating Point Analyses The
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Setting Up An Analysis Performing a
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Setting Up An Analysis Operating Po
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Setting Up An Analysis DC Convergen
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Setting Up An Analysis DC Convergen
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Setting Up An Analysis Saving and R
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Setting Up An Analysis Transient An
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.SAVE END in Combination with .REST
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AC Analysis Results Setting Up An A
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Loop Stability Analysis Setting Up
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Setting Up An Analysis Pole Zero An
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Setting Up An Analysis Pole Zero An
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Hand Selection Setting Up An Analys
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Setting Up An Analysis Transfer Fun
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Setting Up An Analysis Noise Analys
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Setting Up An Analysis Transient No
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Transient Noise Analysis Principles
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Figure 6-10. PSD of a Flicker Noise
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o Setting Up An Analysis Transient
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Setting Up An Analysis Statistical
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Setting Up An Analysis Worst Case A
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Setting Up An Analysis DC Mismatch
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Setting Up An Analysis DC Sensitivi
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AC Sensitivity Analysis Results Set
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Design of Experiments Analysis Resu
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Setting Up An Analysis Aging and Re
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High Impedance Node Check Setting U
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Results Setting Up An Analysis View
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Setting Up An Analysis RF Analyses
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Setting Up An Analysis RF Analyses
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Chapter 7 Running Parametric Analys
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Running Parametric Analyses Tempera
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Running Parametric Analyses Assigni
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Running Parametric Analyses .STEP S
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Running Parametric Analyses Nested
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Running Parametric Analyses .DATA P
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Running Parametric Analyses Removin
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Running Parametric Analyses .ALTER
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Running Parametric Analyses Using O
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Chapter 8 Specifying Simulation Out
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Specifying Simulation Output Output
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Specifying Simulation Output Types
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Examples of Wildcard Usage in Subci
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See Also • .PLOT command in the E
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Compound Waveforms Specifying Simul
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Specifying Simulation Output Tabula
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Specifying Simulation Output Dynami
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Specifying Simulation Output Extrac
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Specifying Simulation Output Plot a
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3. Right-click on the sweep paramet
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Specifying Simulation Output Exampl
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Specifying Simulation Output Exampl
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Safe Operating Area (SOA) Checks Sp
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Specifying Simulation Output Plotti
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See Also • .CHECKSOA in the Eldo
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Specifying Simulation Output Safe O
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Specifying Simulation Output High I
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Specifying Simulation Output High I
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• .OPTION PRINT_OPTION=0 (in the
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Specifying Simulation Output Increm
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Chapter 9 Analyzing Simulation Resu
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File Extension Table 9-1. Eldo Stan
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File Extension _csdf.trX _csdf.acX
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Interpreting the Output Log (.chi)
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Analyzing Simulation Results Simula
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Analyzing Simulation Results Simula
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Analyzing Simulation Results Error
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Analyzing Simulation Results EZwave
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Related Topics EZwave Joint Wavefor
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Analyzing Simulation Results Marchi
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Analyzing Simulation Results Diagno
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Analyzing Simulation Results Non-Co
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Nodes/Devices Impacting Time-Step A
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Analyzing Simulation Results Perfor
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Analyzing Simulation Results Using
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Analyzing Simulation Results Statis
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Chapter 10 Post-Layout Simulation T
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Post-Layout Simulation Post-Layout
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Post-Layout Simulation DSPF File St
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o ii. iii. Post-Layout Simulation E
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Connecting a Source to a DSPF Backa
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SPEF File Structure Post-Layout Sim
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SPEF File Example for Corners Post-
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Post-Layout Simulation Eldo Reducti
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Post-Layout Simulation Reduction Ou
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Post-Layout Simulation Reduction Re
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Chapter 11 Monte Carlo Analysis Mon
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Introduction to Monte Carlo Analysi
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Monte Carlo Analysis Introduction t
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The Monte Carlo Flow Monte Carlo An
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Monte Carlo Analysis Monte Carlo Ba
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Monte Carlo Analysis Monte Carlo Ba
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Monte Carlo Analysis Specifying a M
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Monte Carlo Analysis Statistical Va
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Monte Carlo Analysis Specifying Sta
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Specifying Statistical Parameters M
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Controlling Statistical Parameter V
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How to Specify a Distribution Funct
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Gaussian or Normal Distribution Mon
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User-defined Distribution Monte Car
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Monte Carlo Analysis Correlation Be
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Monte Carlo Analysis Local and Glob
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Monte Carlo Analysis Specifying Sta
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Monte Carlo Analysis Tolerance Sett
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Examples Monte Carlo Analysis Toler
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Monte Carlo Analysis Sampling Plan
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Monte Carlo Analysis Importance Sam
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Monte Carlo Analysis Latin Hypercub
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Monte Carlo Analysis Model-Based Mo
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Monte Carlo Analysis Model-Based Mo
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Monte Carlo Analysis Post-Analysis
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Monte Carlo Analysis Output of Unce
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• MCCORR(LABEL_EXT1,LABEL_EXT2) M
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Extracts the total number of Monte
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Monte Carlo Analysis Output of Unce
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Monte Carlo Analysis Primary Statis
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Approximations of the CDF Monte Car
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Monte Carlo Analysis Additional Unc
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Monte Carlo Analysis Input/Output S
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Monte Carlo Analysis Input/Output S
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Monte Carlo Analysis Graphical Outp
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Stopping Test for AVG Monte Carlo A
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Monte Carlo Analysis SETTLING Techn
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Monte Carlo Analysis MCCONV Extract
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Monte Carlo Analysis Global Sensiti
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Monte Carlo Analysis Large Scale Va
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Monte Carlo Analysis Large Scale Va
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Figure 11-21. Monte Carlo Analysis
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Monte Carlo Analysis Model-Based Ap
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Monte Carlo Analysis Further Exampl
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Monte Carlo Analysis Parameter Nami
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Five independent random variables w
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Monte Carlo Analysis Problems in St
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Monte Carlo Analysis Problems in St
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Figure 11-22. LIMIT Distribution wi
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Figure 11-23. Four Random Samples f
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Monte Carlo Analysis Obsolete Featu
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Chapter 12 Statistical Experimental
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Statistical Experimental Design and
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Statistical Modeling for Discrete C
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Conducting a Screening Experiment G
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Chapter 13 Optimization The purpose
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Optimization Optimization in Eldo O
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Optimization Optimization Options .
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Table 13-1. Eldo Optimization Metho
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Figure 13-2. Discretization of Desi
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Optimization Specifying Tracking wi
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Optimization Scaling Design Variabl
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Optimization Scaling Design Variabl
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Optimization Design Objectives Desi
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Scalar Design Objectives Optimizati
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Optimization Specifying Design Obje
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Notes Optimization Specifying Desig
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Optimization Types of Design Object
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Optimization Design Objectives for
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Optimization Scaling Design Objecti
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Optimization Eldo Optimizer SQP Alg
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Figure 13-3. Illustration of Optima
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Optimization Eldo Optimizer/Search
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Conducting an Eldo Optimization Opt
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Smooth and Non-Smooth Problems Opti
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Optimization of Sweep Simulations O
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Optimization Optimization of Sweep
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Optimization Optimization of Sweep
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Optimization Post-Analysis of Optim
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Optimization Explicitly Declaring R
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Optimization ASCII Optimization Fil
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o o Goal Value — Goal value of th
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Optimization Monitoring Design Obje
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Optimization Monitoring Design Obje
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Code Table 13-3. Optimization Resul
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Optimization Normal and Elastic Mod
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Optimization Designing a Low Noise
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Optimization Fourband Filter Optimi
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Optimization Fourband Filter Optimi
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Optimization MOS Characterization R
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Optimization Robust Optimization Us
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Optimization Robust Optimization Us
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Optimization Setup Time Computation
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Chapter 14 Working with S, Y, Z Par
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Working with S, Y, Z Parameters S,
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The default mixed-mode can be set u
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Working with S, Y, Z Parameters Out
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Working with S, Y, Z Parameters Sim
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Working with S, Y, Z Parameters Tec
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Working with S, Y, Z Parameters Imp
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• Simulation of passive networks
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Working with S, Y, Z Parameters Ins
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Working with S, Y, Z Parameters Tou
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Working with S, Y, Z Parameters Tou
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VAR_LIST_BEGIN / VAR_LIST_END SEG_L
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Chapter 15 Aging and Reliability Si
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Chapter 16 Electrothermal Simulatio
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Electrothermal Simulation Specifyin
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Electrothermal Simulation Specifyin
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The .TEMPNODE statement can also be
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Electrothermal Simulation Reporting
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Electrothermal Simulation Electroth
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Chapter 17 IBIS Models Support in E
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IBIS Models Support in Eldo IBIS Re
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IBIS Models Support in Eldo Checkin
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IBIS Models Support in Eldo Buffers
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Figure 17-3. Output Buffer Model Bu
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Figure 17-5. 3_state Buffer Model B
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IBIS Models Support in Eldo Compone
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IBIS Models Support in Eldo Compone
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IBIS Models Support in Eldo IBIS Su
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IBIS Models Support in Eldo IBIS Mo
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IBIS Models Support in Eldo IBIS Bu
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IBIS Component Instantiates an IBIS
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IBIS Models Support in Eldo IBIS Co
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IBIS Models Support in Eldo IBIS Pa
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IBIS Models Support in Eldo IBIS Pa
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IBIS Electrical Board Description I
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IBIS Models Support in Eldo IBIS El
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IBIS Models Support in Eldo Support
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D_overshoot_ampl_l 5.0 [Rgnd] 2.1 [
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a_pos 4.1 a_neg 4.1 a_signal_pos 4.
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IBIS Algorithmic Model Interface (A
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IBIS Models Support in Eldo IBIS Al
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IBIS Models Support in Eldo Example
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Chapter 18 Eldo Control Language Th
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Eldo Control Language Examples Eldo
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Example Dir 22-plot_mos_ operating_
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Eldo Control Language Eldo Control
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Eldo Control Language Testbenches T
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Eldo Control Language Testbench Ins
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Eldo Control Language Rules for Tes
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Eldo Control Language Task Definiti
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Eldo Control Language Task Instanti
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Eldo Control Language Task Instanti
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Eldo Control Language Statement Ove
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Once assigned an initial value, var
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Eldo Control Language Functions For
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Defining and Running Simulations El
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Eldo Control Language Defining and
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Command compoundcontent conj cos co
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Eldo Control Language Library of Fu
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Command system tan tanh trunc var w
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Examples Eldo Control Language Libr
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Complex Number Function Natural log
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Complex Number Function Decimal log
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pow_10 Task function category: Func
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Eldo Control Language Simulation Dy
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Command _simu_set _simu_set_cond _s
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Eldo Control Language Extended Simu
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Eldo Control Language Parallel Oper
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Concurrency Issues Eldo Control Lan
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Launching ECL Simulations on Differ
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Eldo Control Language Statistical P
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Command _simu_get_stat_param_de v _
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Temporary Files Eldo Control Langua
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Debug Mode Eldo Control Language Ad
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Eldo Control Language Advanced Simu
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Eldo Control Language Advanced Simu
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Eldo Control Language Examples Usin
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Eldo Control Language .EXTRACT Alte
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Eldo Control Language .PRINTFILE Al
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Eldo Control Language .PRINTFILE Al
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Eldo Control Language .OPTIMIZE Alt
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Eldo Control Language .MPRUN with M
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Chapter 19 Post-Processing Library
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Post-Processing Library Post-Proces
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Post-Processing Library General Usa
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Post-Processing Library Macro-Like
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Post-Processing Library Working wit
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Post-Processing Library evalExpr Re
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Post-Processing Library defineVec N
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Post-Processing Library EZwave Wave
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Post-Processing Library ABS ABS Eld
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Post-Processing Library ACOSH ACOSH
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Post-Processing Library ACOTH ACOTH
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Post-Processing Library ASINH ASINH
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Post-Processing Library ATANH ATANH
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Post-Processing Library COMPRESS CO
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Post-Processing Library COSH COSH E
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Post-Processing Library COTH COTH E
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Post-Processing Library DEG DEG Eld
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Post-Processing Library DERIVE DERI
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Post-Processing Library EXP EXP Eld
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Post-Processing Library GMARGIN GMA
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Post-Processing Library IMAG IMAG E
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Post-Processing Library INTEGRAL IN
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Post-Processing Library INVDB INVDB
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Post-Processing Library LOG10 LOG10
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Post-Processing Library MAX MAX Eld
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Post-Processing Library PHASE PHASE
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Post-Processing Library RAD RAD Eld
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Post-Processing Library RELATION RE
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Post-Processing Library RMS RMS Eld
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Post-Processing Library SETTLINGTIM
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Post-Processing Library SINH SINH E
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Post-Processing Library SQRT SQRT E
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Post-Processing Library TAN TAN Eld
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Post-Processing Library TPD TPD Eld
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Post-Processing Library TPDDU TPDDU
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Post-Processing Library TPDUU TPDUU
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Post-Processing Library VMIN VMIN E
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Post-Processing Library XCOMPRESS X
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Post-Processing Library XWAVE XWAVE
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Post-Processing Library IIPX IIPX E
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Post-Processing Library Built-In DS
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Post-Processing Library CONV CONV E
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Post-Processing Library CORRELO •
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Post-Processing Library CT • fmin
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Post-Processing Library FFT • nor
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Post-Processing Library HDIST HDIST
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Post-Processing Library PERIODO PER
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Post-Processing Library PSD PSD Eld
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Post-Processing Library SAMPLER 10
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Post-Processing Library Accessing W
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Post-Processing Library DISP_FILE D
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Post-Processing Library Additional
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Post-Processing Library GETSIZE GET
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Post-Processing Library SETPOINT SE
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Chapter 20 Speed and Accuracy Eldo
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Speed and Accuracy Speed and Accura
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Speed and Accuracy Integration Meth
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Speed and Accuracy Time Step Contro
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Speed and Accuracy Time Step Contro
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Speed and Accuracy Global Tuning of
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Speed and Accuracy Global Tuning of
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Speed and Accuracy Simulation of La
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Speed and Accuracy Tips for Improvi
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Speed and Accuracy IEM Overview Whe
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Speed and Accuracy IEM Tolerance Pa
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IEM Alone (.OPTION IEM) Speed and A
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Integration Method Speed and Accura
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Chapter 21 Examples The most produc
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Examples Table 21-1. Eldo Examples
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Netlist Explanation Examples Exampl
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Examples Example 2—Transient and
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Examples Example 3—AC and Noise A
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Examples Example 3—AC and Noise A
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Figure 21-8. Low Pass Filter Exampl
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Examples Example 5—Transient Anal
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Simulation Results Examples Example
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Figure 21-15. Non-inverting Amplifi
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Examples Example 8—DC Sensitivity
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Examples Example 9—Transient and
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Examples Example 11—Loop Stabilit
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Examples Example 12—Overshoot Ext
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Summary of Eldo commands used in th
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Examples Example 16—Transient Ana
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Examples Example 17—Monte Carlo S
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Examples Example 17—Monte Carlo S
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Examples Example 18—Numerical Int
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Examples Example 19—DC Mismatch C
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Examples Example 21—Post-Layout S
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Examples Example 22—Extract Gain
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Examples Example 22—Extract Gain
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Examples Example 23—Parametric Se
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Examples Example 23—Parametric Se
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Examples Example 24—Cell Characte
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Examples Example 25—Setting up an
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Examples Example 26—Spectre Compa
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Examples Example 27—Monte Carlo A
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Examples Tutorial—Using Power Ana
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Examples Tutorial—High Impedance
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Examples Transient Noise Analysis E
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Appendix A Error and Warning Messag
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Error Number Description Table A-1.
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Error and Warning Messages Global E
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Error and Warning Messages Errors R
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Error Number Table A-4. Errors Rela
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Page 1401 and 1402: Error Number Description Table A-5.
Page 1403 and 1404: Error and Warning Messages Miscella
Page 1409 and 1410: Error and Warning Messages Errors R
Page 1411 and 1412: Error and Warning Messages Warning
Page 1413 and 1414: Error and Warning Messages Global W
Page 1415 and 1416: Error and Warning Messages Warnings
Page 1417 and 1418: Warning Number Table A-11. Warnings
Page 1429 and 1430: Warning Number Table A-14. Warnings
Page 1431 and 1432: Warnings Related to Subcircuits The
Page 1435 and 1436: Warning Number Table A-16. Miscella
Page 1451: Warning Number Warning 1021092 Warn
Page 1455 and 1456: Troubleshooting File Troubleshootin
Page 1457 and 1458: Appendix C Eldo Interactive Mode El
Page 1459 and 1460: Eldo Interactive Mode Reading Infor
Page 1461 and 1462: Command [.]LSMODEV LSMODPAR [.]LS
Page 1463 and 1464: Eldo Interactive Mode Change Featur
Page 1465 and 1466: Eldo Interactive Mode Change Featur
Page 1467 and 1468: STOP IF Eldo Interactive Mode Cont
Page 1469 and 1470: Appendix D Eldo Conversion Utilitie
Page 1471 and 1472: Eldo Conversion Utilities Utility t
Page 1477 and 1478: Appendix E STMicroelectronics Model
Page 1479 and 1480: STMicroelectronics Models What Does
Page 1481 and 1482: Css Css Csb Csb Csb+CJSB Cbd Cdbd C
Page 1483 and 1484: Index — Symbols — ! comment del
Page 1485 and 1486: PWL_LIN(), 111 PWR(VAL1, VAL2), 110
Page 1487 and 1488: 32-bit and 64-bit modes, 42 An Intr
Page 1489 and 1490: LIMIT function, 110 Limiting Output
Page 1491 and 1492: DSPF backannotation, 392 Examples,
Page 1493 and 1494: Noise Model, 1373 Syntax Errors, 36
Page 1495 and 1496: Third-Party Information This sectio
Page 1497 and 1498: 3. The name of the author may not b
Page 1499 and 1500: USE, DATA, OR PROFITS; OR BUSINESS
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End-User License Agreement The late
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7.1. Mentor Graphics warrants that
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