Agilent Technologies 81134A Guide de l'utilisateur télécharger pdf (Page 60)

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

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

Setting Up the 81134A by Using the

Graphical User Interface

Instrument Settings To set the instrument parameters:

1 Disable the outputs.

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

3 Set the Period to 1 GHz.

Channel Settings To set the channel parameters for channel 2:

1 Switch to the Channel page.

2 Switch to Channel 2 by pressing the Ch2 softkey .

3 Select the pattern mode PRBS.

4 Select the PRBS polynome 2

-1.

5 Select the signal mode NRZ.

6 Enable the variable crossover and set the crossover point at first

50 %.

7 In the Timing panel:

–Select Delay Ctrl Input 250 ps.

–Set the Delay to 0 s.

–Set the DCycle to 50 %.

8 In the Levels panel, set:

–The level format to Custom.

– High to 1.0 V.

– Low to -1.0 V.

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Agilent Technologies 81134A Guide de l'utilisateur Page 60