Using the Agilent 81133A/81134A Pulse Generator Timing of Generated Signals
80 Agilent 81133A/81134A Pulse Generator User’s Guide, January 2005
PRBS
See “Data Pattern” on page 79 for for the timing diagram.
Characteristics • A PRBS signal can be either generated continuously or can be
started manually or by the arming source.
The PRBS polynome is selectable from 2
5
– 1 … 2
31
– 1.
• The instrument mode is Pulse/Pattern.
• The pattern mode is PRBS.
• You can select between RZ, NRZ and R1 signal modes for each
output.
In R1 and RZ modes, the pulse width can be selected as either width
or duty cycle.
• You can select between normal and inverted signals for each output.
• For the clock source, you can select from:
– Internal (YIG Oscillator)
– External signal at Clock Input
– External 10 MHz Reference at Clock Input
For more information about the clock sources, see “Clock Sources”
on page 73.
• The Trigger Out marks every start of the repetitive PRBS, as long as
no frequency divider has been applied.
See “Trigger Out” on page 75.
