Wavecrest SIA-3000 Скачать руководство пользователя страница 2 | Manualshive

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Содержание SIA-3000

Страница 1: ...WAVECREST Corporation Examining Clock Signals And Measuring Jitter with the WAVECREST SIA 3000 Application Note No 142 200142 00 REV A...

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Страница 3: ...fer in some respect from its published description but will always equal or exceed the original design specifications unless otherwise stated Copyright 2002 WAVECREST Corporation A Technologies Compan...

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Страница 5: ...J and DJ 4 Find the Causes of DJ Identify PJ Crosstalk and Modulation 5 Identify the Spectral Content of the Jitter 6 Identify Possible Low Frequency Jitter Content 7 Analyze Long term Drift Wander 8...

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Страница 7: ...s of tool settings measurement setup and theory of measurement This application note will discuss how to use the various VISITM tools to fully characterize your signal These tools allow many different...

Страница 8: ...l is for qualitative analysis as well as measuring voltage parameters including rise or fall times A different measurement engine is used for jitter analysis those tools follow this page Connect the c...

Страница 9: ...number of hits Figure 2 Results from the most recent pass are displayed as Latest text Results from accumulated statistics are display as ACCUM text The Maximum Histogram view below shows all accumul...

Страница 10: ...st value is Total Jitter TJ which includes contributions from all deterministic and random components and is a pk pk value specified for a Bit Error Rate BER or amount of time The Bathtub curve shows...

Страница 11: ...gh end maximum frequency is always the clock frequency or less Figure 4 1 Sigma values vs number of periods skipped Analysis of 2GHz clock from Figure 2 Note that this is a zoomed view to show details...

Страница 12: ...ew Add a view by pressing ADD VIEW on the front panel or press on the top menu bar Change this view to Summary Figure 5 FFT shows jitter frequencies and amplitudes Analysis of 2GHz clock from Figure 3...

Страница 13: ...or less Minimum Data Points determines the number of time measurements in the record Increasing this value will reduce the possibility of aliasing increase FFT resolution and allow lower frequency co...

Страница 14: ...tool allows histograms to be performed at regular intervals chosen by the user In other words when a histogram is performed the tool waits for a specified time interval and then performs another hist...

Страница 15: ...ng histogram statistics at user defined intervals Figure 9 shows the results from the same tool but a different view of the measurements from Figure 7 In this case the 1 sigma and Peak to Peak values...

Страница 16: ...iod Pulsewidth Pulsewidth Duty Cycle and Frequency Counter The Statistics tool is valuable in that it is the only tool to show Duty Cycle and Frequency Counter information Additionally it shows the ba...

Страница 17: ...nel or the top menu or Press the RUN button on the front panel or the top menu Figure 11 Shows statistics from histogram measurements of Cycle to Cycle or the difference of two adjacent cycles Period...

Страница 18: ...u Figure 12 Shows statistics from histogram measurements of Skew or Propagation delay between two or more channels This tool is useful for measuring the skew between two or more signals One example is...

Страница 19: ...software tools for advanced analysis of PLLs The PLL analysis module can provide Transfer function Poles and Zero Bode Plot Carrier Frequency Damping Factor Natural Frequency PSD of Noise Lock Range L...

Страница 20: ...ansastrasse 136 Otsuka Sentcore Building 6F Eden Prairie MN 55344 San Jose CA 95110 D 81373 M nchen 3 46 3 Minami Otsuka TEL 952 831 0030 TEL 408 436 9000 TEL 49 0 89 32225330 Toshima Ku Tokyo FAX 952...

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