Trigger Source
In the Triggered (N Cycle) burst mode, the function generator outputs a waveform with a specified number of cycles (Burst Count) each time a trigger is received. After the specified number of cycles have been output, the function generator stops and waits for the next trigger.
The number of outputs and the parameter choices vary by instrument. Some of the options described may not be available for a particular instrument. The Function Generator application will only list settings and values that are available for the selected instrument type.
- When the Internal (immediate) source is selected, the frequency at which the burst is generated is determined by the Burst Period.
- When the External source is selected, the function generator will accept a hardware trigger applied to the rear-panel Trigger connector. The function generator outputs the specified number of cycles each time it receives a TTL pulse with the specified polarity. External trigger signals that occur during a burst are ignored.
- When the External source is selected, you can specify whether the function generator triggers on the rising or falling edge of the signal on the rear-panel Trigger connector (see Trigger Slope).
- When the Manual source is selected, the function generator outputs one burst each time the front-panel Trigger key is pressed.
- When the External or Manual trigger source is selected, the Burst Count and Burst Phase remain in effect but the Burst Period is ignored.