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Setting Up Generic and Advanced Signals
Instrument Settings
Channel Settings for the PRBS Signal
42
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
N O TE
This example is demonstrated with the 81134A instrument.
With the 81134A instrument, you can set up both signals
simultaneously.
Using the Graphical User Interface
To set the instrument parameters:
1 Disable the outputs.
2 In the instrument panel, choose the Pulse/Pattern mode.
3 Set the frequency to 500 MHz.
To set the channel parameters for channel 1:
1 Switch to the Channel page.
2 Select the pattern mode PRBS.
3 Select the PRBS polynome 2
4 Select the signal mode NRZ.
5 In 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
12
-1.
Keysight 81133A/81134A Pulse Generator User's Guide, April 2015
Setting Up a Data Pattern
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