[Source:]Voltage; [:Level][:Immediate] [:Amplitude]; Source:]; Voltage - HP E1340A User Manual

[SOURce:]VOLTage

Amplitude and Offset
Considerations
Subsystem Syntax
[:LEVel][:IMMediate]

[:AMPLitude]

Chapter 7
[SOURce:]VOLTage[:LEVel][:IMMediate] [:AMPLitude]
The [SOURce:]VOLTage
values for all output waveform shapes.
Amplitude control is accomplished by the combination of an analog
multiplier and a 20 dB attenuator. The analog multiplier scales the output
of the main output DAC. It has a resolution of 11 bits where 2047
represents maximum output and 0 no output. Any specified offset voltage is
summed with the multiplier output before the 20 dB attenuator. If both the
output amplitude and offset are less than or equal to 10% of full scale
(.51175 V into a 50 load), the 20 dB attenuator will be used, and the
analog multiplier and offset DAC values will be scaled up by a factor of 10.
This results in finer low-level amplitude and offset control, as well as
reduced noise on the output. If either the output amplitude or offset values
are greater than 10% of full scale, the 20 dB attenuator will not be used.
Thus, a very small amplitude signal riding on a large offset will have
relatively poor amplitude resolution and will tend to be noisy.

[SOURce:]

VOLTage

[:LEVel]

[:IMMediate]

[:AMPLitude] <
:UNIT
:OFFSet <
[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude] <
sets the output amplitude when
RAMP , SINusoid , SQUare
amplitude for arbitrary waveforms (
the least significant DAC code bit represents 1/2047 of this value.
Output amplitude for ramp, sine, square and triangle wave output may be
programmed in volts, peak volts, peak-to-peak volts, RMS volts, or dBM.
Output amplitude for DC must be programmed in volts; for arbitrary
waveform output, volts or peak volts.
The query form returns the amplitude in terms of the default units, specified
by the
SOURce:VOLTage:LEVel:IMMediate:AMPLitude:UNIT:VOLTage
command.
subsystem controls the amplitude and offset
amplitude
>
units
[:VOLTage] < >
offset
>
SOURce:FUNCtion:SHAPe
, TRIangle . It sets the positive full-scale output
SOURce:FUNCtion:SHAPe USER
HP E1340A Command Reference
amplitude
>
is set to ,
DC
set);
177