Agilent Technologies E1441A user service Parameter

Table 2-4.

Parameter	Parameter		Output	Minimum	Maximum	Default
Name	Type	Function	Termination	Amplitude	Amplitude	Units
amplitude	numeric	Sine	50Ω	50 mVpp	10 Vpp	Vpp
		Square	50Ω	50 mVpp	10 Vpp
		Triangle	50Ω	50 mVpp	10 Vpp
		Ramp	50Ω	50 mVpp	10 Vpp
		Noise	50Ω	50 mVpp	10 Vpp
		Built-In	50Ω	50 mVpp	10 Vpp
		Arbs
amplitude	numeric	Sine	Open Circuit	100 mVpp	20 Vpp	Vpp
		Square	Open Circuit	100 mVpp	20 Vpp
		Triangle	Open Circuit	100 mVpp	20 Vpp
		Ramp	Open Circuit	100 mVpp	20 Vpp
		Noise	Open Circuit	100 mVpp	20 Vpp
		Built-In	Open Circuit	100 mVpp	20 Vpp
		Arbs

For arbitrary waveforms, the maximum amplitude will be limited if the data points do not span the full range of the output DAC (Digital- to-Analog Converter). For example, the built-in “SINC” waveform does not use the full range of values between ±1 and therefore its maximum amplitude is 6.084 Vpp (into 50 ohms).

Possible Conflict with Function Change: The output amplitude is automatically adjusted if you select a function whose maximum amplitude is less than that of the currently active function. This conflict may arise when the output units are Vrms or dBm due to the differences in crest factor for the output functions. For example, if you output a 5 Vrms square wave (into 50 ohms) and then change the function to sine wave, the function generator will adjust the output amplitude to 3.535 Vrms (the upper limit for sine waves in Vrms). A -221, “Settings conflict” error is generated and the amplitude is adjusted.

Output Amplitude and Output Termination: The output amplitude is automatically adjusted (and no error is generated) if you change the output termination. For example, if you set the amplitude to 10 Vpp and then change the termination from 50 ohms to “high impedance”, the displayed amplitude will double to 20 Vpp. If you change from “high impedance” to 50 ohms, the displayed amplitude will drop in half. See “Output Termination” on page 25. for more information.

Offset Voltage Restrictions: The output amplitude (in Vpp) and the dc offset voltage must obey the following restrictions. If the specified amplitude is not valid, the function generator will automatically adjust it to

Chapter 2 Agilent E1441A Application Information 23