Setting Up Generic and Advanced Signals

Setting Up a Data Pattern

Setting Up a Data Pattern

Task Set up two signals:

•A PRBS signal to test a digital transmitter.

•A 32-bit pattern signal with NRZ data output format at 500 MHz to check a digital circuit with ECL logic.

The pattern is:

11110011100110010010100100000000

NOTE This example is demonstrated with the 81134A instrument.

With the 81134A instrument, you can set up both signals simultaneously.

Using the Graphical User Interface

Instrument Settings To set the instrument parameters:

1Disable the outputs.

2In the instrument panel, choose the Pulse/Pattern mode.

3Set the frequency to 500 MHz.

Channel Settings for the PRBS Signal To set the channel parameters for channel 1:

1Switch to the Channel page.

2Select the pattern mode PRBS.

3Select the PRBS polynome 212-1.

4Select the signal mode NRZ.

5In the Levels panel, select the predefined level format ECL. This automatically sets:

–the Amplitude to 800 mV

–the Offset to –1.350 V

–the Term. Voltage to –2.0 V

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

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Agilent Technologies 5988-7401EN manual Setting Up a Data Pattern, Using the Graphical User Interface
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