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User Guide
QuickSyn Frequency Synthesizer
Set Trigger
The buttons in the Set Trigger area of the List Mode
panel allow the user to select trigger mode.
• When No Trigger is selected and the Run List button is pressed,
sweeps begin immediately upon execution.
• When Enable List Trigger is selected, a full sweep begins when
a hardware trigger is detected.
• When Enable List Point Trigger is selected, sweep points
change as each hardware trigger is received.
Dwell Time
The buttons in the Dwell Time area of the List Mode
panel allow the user to choose between List Point Dwell Time and
Global Dwell Time. Dwell time is the time that each point in the
sweep will remain static before moving to the next point
• When Use List Point Dwell Time is selected, the Synthesizer
uses the user-specified time value for each list point.
• When Global Dwell Time is selected, the Global Dwell Time
entry box becomes available, and a value in microseconds can
be entered.
Global Dwell Time
This entry box is used to specify the time
in microseconds that each point will remain static before moving
to the next point. To enter a value, select the option button next to
Global Dwell Time, highlight the number in the box, and enter a
value or use the up/down arrows.
Sweep Direction
The buttons under Sweep Direction allow the
user to set sweep direction.
• When Up is selected, sweeps occur in ascending order.
• When Down is selected, sweeps occur in descending order.
• When Up and Down is selected, the Synthesizer sweeps in both
ascending and descending order.
NOTE
A hardware trigger is a 0/3.3 V pulse signal applied to pin 17 (trigger) of the SPI
interface connector. A trigger is initiated on a low-to-high transition.