Introduction to SharkSim

Tim CoylePresidentSignal Consulting Group LLC

Signal Consulting Group LLC Copyright 2011

Focused Experienced Passionate

Small Company Located in Portland, ME

Focus on Signal and PowerIntegrity for PCB Design

Over Ten Years Experiencein Signal Integrity Field

Launched Hardware MagazineDeveloped SI SoftwarePublished IBIS BookMonthly NewsletterGive Back to Community

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Benefits of Signal Integrity Analysis

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Is This Waveform Good?

Signal Integrity design reduces cost and increases performance through validation

Validation Through SimulationSimulation provides methodology to quickly

and efficiently vary system parameters and test for validationEx. Eye Diagram simulation

Simulation can be used in parallel with Lab analysis to make a complete validation flowBoth simulate and measure into the same

feedback loopBut just not “simulate” but “design”

Don’t want just plug and chug simulationsNeed the right tools to get the most out of

simulationsSharkSim focuses on Models and Metrics

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Need Metrics To Analyze Waveforms

Waveform at Receiver

VCC

VIH

VIL

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1. Overshoot: Too much voltage could damage component2. Ringback: Signal must be kept out of threshold region

(timing errors)3. Settling Time: Too long and interferes with next transition

(ISI)4. Non-Monotonic Edge: Can cause timing errors (especially if

clock)

Noise margin

Noise margin

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Need Quality Models for Simulation

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Single LC LadderLumped

Multiple LC Ladder SegmentsDistributed

RLGC Values Per Unit LengthDistributed (via algorithims)

The SharkSim SolutionSharkSim Developer

Generate IBIS models from SPICE modelsSupports HSPICE,Spectre,Eldo,MSIM simulatorsGUI driven interface provides easy to use and

advanced featuresSharkSim PCB

Focuses on pre-layout rapid prototyping with schematic based topology editor

Integrated MSIM-PCB simulator for accuracyFull featured SI tool with 2D field solver/IBIS

model editor/crosstalk/S-Parameters/moreSystem budget tools for noise and timing

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Bridging the Gap

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Design

Generate and Correlate IBIS Models

Validate and Simulate IBIS Models

Applications

Customer

Design and Applications collaborate together on customer deliverables

Customer Deliverables:IBIS Simulation ModelsReference DesignsApplication Notes

IBIS Model Generation and Correlation

Built-in SPICE to IBIS Correlation and Reporting

GUI based SPICE to IBIS Translation

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IBIS Model Quality Checking

Advanced quality checking

Graph and View Data

CompliantIBIS Keywordsand Syntax

Run IBIS Parser

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PCB Stackup Analysis

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Supports 8 Common PCB Structures

Graph Any Variable Against Impedance

View and Save RLGC Parameters

Link to ExternalField Solvers

Quickly and Easily Enter Stackup Data

Impedance Calculated Instantly

Complete Signal Integrity PCB Tool

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Differential Design Support

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Noise and Timing Analysis ToolsQuickly buildNoise and timing budgets (Ex. PCI, DDR)

Automatic noise and timing measurements to Excel spreadsheet

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SharkSim PCB Versions

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SummarySharkSim provides a complete Signal

Integrity validation solution with Developer and PCB versions

Can be used for IBIS model generation, IBIS model customer support, PCB reference designs, customer design issues, etc.

Focuses on Models and Metrics to provide a methodology for Signal Integrity validation

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Contact UsTim CoylePresidentSignal Consulting Group LLC405 Western Ave #430 South Portland, ME 04106tim.coyle@siconsultant.com(617)297-2566

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Learn more at www.sharksim.com