Agilent 33120A User's Guide

Chapter 4 Remote Interface ReferenceBurst Modulation CommandsBurst Modulation CommandsSee also “Burst Modulation,” starting on page 81 in chapter 3.Burst Modulation OverviewThe following is an overview of the steps required to generate aburst-modulated waveform. The commands used for burst modulation arelisted on page 162.You can use burst modulation in the following two modes. The functiongenerator enables one burst mode at a time based on the trigger sourceand burst source that you select (see the table below).œ Triggered Burst Mode: In this mode, the function generator outputsa waveform with a specified number of cycles (burst count) each timea trigger is received. After the specified number of cycles has beenoutput, the function generator waits for the next trigger. You canconfigure the function generator to accept an internal trigger or youcan send the trigger externally by pressing the front-panel Single keyor by applying a trigger signal to the rear-panel Ext Trig terminal.At power-on, the internally-triggered burst mode is enabled.œ External Gated Burst Mode: In this mode, the output waveform iseither “on” or “off ” based on the level of the external signal applied tothe rear-panel Ext Trig terminal. When the gate signal is true,the function generator outputs a continuous waveform. When thegate signal is false, the output is turned off.Trigger Source(TRIG:SOUR)Burst Source(BM:SOUR)Burst Count(BM:NCYC)Burst Rate(BM:INT:RATE)Burst Phase(BM:PHAS)External Triggered Mode External Internal Available Not Used AvailableInternal Triggered Mode Internal Internal Available Available AvailableExternal Gated Mode Internal External Not Used Not Used Not Used160