Agilent Technologies 5988-7401EN manual Setting Up the 33250A Waveform Generator

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Setting Up Signals for a Stressed Eye Diagram Measurement

Setting Up Generic and Advanced Signals

Setting Up the 33250A Waveform Generator

Program a 50 MHz sine wave with an amplitude of 2 Vpp:

1Press the Freq softkey.

2With the numeric keypad enter 50 as the frequency.

3Select the desired unit MHz by pressing the corresponding softkey.

4Press the Ampl softkey.

5Enter the value 2 with the numeric keypad.

6Press the Vpp softkey to select the desired unit.

Viewing the Eye Diagram on the 86100 DCA

To view the eye diagram on the scope:

1Ensure that the channel outputs and the trigger output at the 81134A instrument are enabled.

2On the scope, switch to channel 1.

3Press the Source button near the trigger input until front panel is selected.

4Press the Eye/Mask Mode button.

5Press AutoScale.

6Switch on the 33250A output with the output key.

The signal as displayed on a standard oscilloscope is depicted below.

Delay modulated with sine wave

Agilent 81133A/81134A Pulse Generator User’s Guide, January 2005

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Contents Agilent 81133A/81134A Pulse Generator Revision Important NoticeContents Setting Up the 81134A by Using the Graphical User Interface Setting Up Generic and Advanced SignalsUpdating the Firmware Troubleshooting Index Contents Environmental Conditions Safety SummaryDo not Operate in an Explosive Atmosphere Before Applying PowerSafety Requirements Ground the InstrumentInitial Inspection Initial InspectionPower Requirements Performance RequirementsVentilation Requirements Cleaning Recommendation Cleaning RecommendationDeclaration of Conformity Declaration of ConformityIntroduction to the Agilent 81133A/81134A Pulse Generator Introduction to the Agilent 81133A/81134A Pulse Generator Benefits and Key FeaturesInterface Keys Tab Keys to navigate Front Panel OverviewFront Panel Overview Graphical User Softkeys NumericGlobal Inputs Outputs Channel Inputs Input and OutputsDescription Rear Panel Overview Operating the Agilent 81133A/81134A Pulse Generator Channel Navigation through the PagesOperating the Agilent 81133A/81134A Pulse Generator MainHow to Navigate through the Parameters at one How to Select a Parameter from a Selection ListPress the navigation knob to open the selection list How to Change a Number Field How to Change a Number FieldPress Modify Values Fine-TuningChanging Single Digits Operating the Agilent 81133A/81134A Pulse Generator Setting Up Generic and Advanced Signals Setting Up Generic and Advanced Signals Setting Up a Clock SignalSetting Up a Clock Signal Using the Graphical User InterfaceNormal Out Channel Set the Freq. Divider to Frequency Divider Indicator Setting Up Generic and Advanced Signals Following code performs the same task Using the Remote Programming InterfacesSetting Up a Pulse Signal Pattern Mode Width Levels Setting Up a Pulse SignalTrigger Mode Generate the Signals //reconnect channels Setting Up a Data Pattern Setting Up a Data Pattern Prbs Polynome Signal Mode Pattern ModeECL Levels Switch to the Numeric Edit Mode Pulse Type NRZ Pattern Mode Data ECL LevelsData pattern for channel Numeric Edit Mode Trigger Mode Set up the trigger Set trigger mode to data OUTP0SOUR Bits Width = 100 ps Setting Up a Burst SignalDelay = 50 ps Period = 500 ps Arming SourceSetting Up a Burst Signal InstrumentMode Timing Parameter Data pattern for channel Graphic Edit ModeTrigger Output Aux page now looks as follows Following code performs the same tasks Burst Length = 4 x Data Length Setting Up a Repetitive Burst SignalInstrument Burst Repetition Specifies Mode Setting Up a Repetitive Burst SignalData Settings for the Pattern Signal To set the data pattern Setting Up a Repetitive Burst Signal Setting Up Generic and Advanced Signals Prepare the trigger Set trigger mode to Data OUTP0SOUR Bits Setting Up Signals for a Stressed Eye Diagram Measurement Connecting the Instruments Setting Up Signals for a Stressed Eye Diagram Measurement86100 DCA 50 % Setting Up the 81134A by Using Graphical User InterfaceChannel page now looks as follows Enable the trigger output Viewing the Eye Diagram on the 86100 DCA Setting Up the 33250A Waveform GeneratorChannel panel Play with the SettingsUsing the Agilent 81133A/81134A Pulse Generator Using the Agilent 81133A/81134A Pulse Generator Pages of the User InterfaceInstrument Panel Channel Pages of the User Interface Instrument Modes Combining Parameters for Signal GenerationCombining Parameters for Signal Generation Pattern Modes NRZ Signal ModesVariable Crossover Measure Function Clock Source Clock SourcesUsing the Agilent 81133A/81134A Pulse Generator Trigger Out Start ModeTiming of Generated Signals Trigger Out Timing of Generated SignalsClock Duty Cycle = 50 % OutputChannel Freq. Divider = PulsesData Pattern Output Trigger OutData Pattern of 32 bits Prbs Data Pattern Burst Started BurstRepetitive Burst Saving and Recalling Settings Jitter ModulationJitter Modulation Saving and Recalling Settings Updating the Firmware Updating the Firmware Troubleshooting Instrument does not Respond TroubleshootingIndex IndexTrigger output levels Index 5988-7401EN