Agilent 33120A User's Guide

Chapter 3 Features and FunctionsOutput ConfigurationDuty CycleApplies only to square waves. Duty cycle is specified as a percentage andrepresents the amount of time per cycle that the square wave is high.TDTDuty Cycle = TDT(where T =1frequency )œ Duty cycle: 20% to 80%, in 1% increments (frequency ˆ 5 MHz).40% to 60%, in 1% increments (frequency > 5 MHz).The default is 50%.œ The duty cycle is stored in volatile memory; the duty cycle is set to50% when power has been off or after a remote interface reset.The APPLy command automatically sets the duty cycle to 50% forsquare waves.œ Before attempting to set the duty cycle, you must enable the squarewave function. From the front panel, “SQUARE ONLY” is displayed ifsquare wave is not currently active. From the remote interface,no error is generated, but the specified duty cycle is rememberedwhen you change to the square wave function.œ The duty cycle setting is remembered when you change from squarewave to another function. When you return to the square wavefunction, the previous duty cycle is used.66