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SpecctraQuest Simulation Winter 2003/4 Final Presentation Date : 22.4.2004 Student : Kobi Ochayon Supervisor : Boaz Mizrachi
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Project Goal Simulate lab ’ s experiment board lines with HSDS phenomena on SpecctraQuest
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Project steps A. Learning B. Simulating C. Comparing
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Step A - Learning Learning and understanding how the simulator works and its abilities. Performing the current HS experiment. Participate in HSDS course and learn the high speed phenomena in digital systems
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Step B - Simulating Effects of trace lengths. Effects of via. Effect of high cross-talk Effects of differential trace mis-matches Effects of stubs and SMA connectors on signal integrity.
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Effects of trace lengths ShortMediumLongVery long 1’’10’’40’’60’’ Simulation modelcomparediff
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Multi-via trace Reflections Equivalent inductance and capacitance model Simulation results
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Crosstalk simulation 10 ’’ long trace (4 mil spacing) oscillator driven trace – 125MHz modelSimulation results
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Mismatch simulation 10 ’’ long trace 1 ’’ skew between the differential pair model results
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Connector simulation SMA connectors 30 ’’ coax cable 2 ’’ trace to SMA model results
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Step C – Comparing with Hyperlynx results Trace length Trace length (short,medium,long,very-long)shortmediumlongvery-long Multi-via trace (missing) Xtalk Mismatch
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Comparison summery SpecctraQuestHyperlynx Long tracesNo signal fadingSignal fading XtalkMinor diff between close and far victims Remarkable diff Multi viaComplicated 2 build- mismatchConvincing results convincing results
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END
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Beckup Slides
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Simulation model – effects of trace length back
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Effects of trace lengths short trace back
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Effects of trace lengths - medium trace back
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Effects of trace lengths - medium trace back
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Effects of trace lengths – long trace back
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Effects of trace lengths – very long trace back
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Traces comparison-input back
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Traces - diff back
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Multi Via Trace – model back
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Multi Via - Results back
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Crosstalk trace- Simulation model back
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Crosstalk trace – Sim Results back
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Mismatch model back
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Mismatch Results input common back
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Connectors simulation back
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Connector-results back
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Hyperlynx-Simulation Model back
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Hyperlynx-Short trace back
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Hyperlynx -Medium Trace back
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Hyperlynx-Long trace back
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Hyperlynx- Verylong trace back
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Hyperlynx – Multi via back
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HyperLynx- Xtalk back Field solver
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Hyperlynx – Connectors back
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HyperLynx- Mismatch output input back
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Xtalk – field solver back
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