Agilent Technologies 81134A Guía de usuario descargar pdf (Pagina 58)

Setting Up Generic and Advanced Signals Setting Up Signals for a Stressed Eye Diagram Measurement

58 Agilent 81133A/81134A Pulse Generator User’s Guide, September 2008

Setting Up Signals for a Stressed

Eye Diagram Measurement

Task Set up signals for a stressed eye measurement by:

• Intentionally adding jitter to your signals

• Changing the crossover of the eye pattern

One-Channel Setup For a one- channel setup, you need:

• An 81133A or 81134A instrument

• An arbitrary waveform generator to generate additional jitter, for

example, the 33250A

• A scope for displaying the signals, for example, the 86100 DCA

Two-Channel Setup For a two- channel setup, you need:

• An 81134A instrument

• An arbitrary waveform generator to generate additional jitter, for

example, the 33250A (you might need two of them for two

“independently jittering” output signals)

• A scope for displaying the signals, e.g. the 86100 DCA

NOTE This example is demonstrated with the 81134A instrument. The

two- channel instrument allows you to generate the distorted eye

and a clean “reference eye” at the same time.

Use Cases Stressed eye measurements can be used:

• In board design: For testing the RF behavior of different board

materials and transmission line geometries.

• For testing cables and connectors.

• For testing A/D converters.

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Agilent Technologies 81134A Guía de usuario Pagina 58