User`s manual

[SOURce:]ARBitrary
The [SOURce:]ARBitrary subsystem controls:
– The data format for the digital-to-analog converter (DAC).
– The DAC data source.
– Direct downloading of DAC data to the waveform segment memory.
Subsystem Syntax [SOURce:]
ARBitrary
:DAC
:FORMat <
format>
:SOURce <
source>
:DOWNload <
source>,<dest>,<length> [no query]
:COMPlete [no query]
:DAC:FORMat
[SOURce:]ARBitrary:DAC:FORMat <format> specifies the format for the DAC
codes. The format controls how to send and receive DAC codes, and how the
Agilent E1445A stores and interprets the waveform segment memory data.
Note The DAC code format cannot be changed after storing the waveform segment data.
Use
[SOURce:]LIST[1][:SEGMent]:DELete:ALL to delete waveform segment data
before changing the DAC code format.
Parameters
Parameter
Name
Parameter
Type
Range of
Values
Default
Units
<
format>
discrete SIGNed | UNSigned none
Comments • The available formats are:
– SIGNed: Selects the two’s-complement format. The DAC code is a two’s
complement number where 0 represents 0 V output, -4096 represents negative full
scale output, +4095 represents positive full scale. The positive full scale output
value is specified by the
[SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]
command.
– UNSigned: Selects the unsigned format. The DAC code is an unsigned number
where 0 represents negative full scale output and 8191 represents positive full scale.
[SOURce:]ARBitrary
Chapter 8 Command Reference 313