98  
 
Chapter 3  Features and Functions
Burst Mode
3
Burst Type
You can use burst in one of two modes as described below. The function 
generator enables one burst mode at a time based on the trigger source 
and burst source that you select (see the table below). 
• Triggered Burst Mode: In this mode (also called N Cycle Burst), 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. You can configure the function generator to 
use an internal trigger to initiate the burst, or you can provide an 
external (manual) trigger by pressing the front-panel key, 
applying a trigger signal to the rear-panel Trig In connector, or by 
sending a software trigger command from the remote interface.
• External Gated Burst Mode: In this mode, the output waveform is 
either “on” or “off” based on the level of the external signal applied to 
the rear-panel Trig In connector. When the gate signal is true, the 
function generator outputs a continuous waveform. When the gate 
signal goes false, the current waveform cycle is completed and then 
the function generator stops while remaining at the voltage level 
corresponding to the starting burst phase of the selected waveform. 
Burst Mode
(BURS:MODE)
Burst Count
(BURS:NCYC)
Burst Period
(BURS:INT:PER)
Burst Phase
(BURS:PHAS)
Trigger Source
(TRIG:SOUR)
Triggered Burst Mode:
Internal Trigger
TRIGgered Available Available Available IMMediate
Triggered Burst Mode:
External Trigger
TRIGgered Available Not Used Available EXTernal, BUS
Gated Burst Mode:
External Trigger
GATed Not Used Not Used Available Not Used
33210A users guide.book  Page 98  Wednesday, July 16, 2008  11:16 AM