GENERAL INFORMATION
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Analog I &Q inputs and outputs (optional)
The 3020A can provide baseband I and Q output and CW RF output simultaneously.
Differential analog I and Q outputs from the ARB are provided, with control of differential
output level, DC bias and offset voltage.
IQ vector modulation
Analog I and Q inputs can be used to generate wideband vector modulation from external
analog I and Q sources such as test instruments and device outputs.
Arbitrary waveform generator (ARB)
The ARB can store 32 MSamples, either as a single long waveform or any number of smaller
waveforms up to the capacity limit of the sample memory. Waveforms transfer quickly
between the PXI controller and the ARB because of the wide bandwidth of the PCI backplane.
Playback times of more than 30 minutes are possible, longer if ARB sequencing is used.
ARB sequencing
ARB sequencing provides a method for extending the effective ARB sample memory as well
as providing a flexible way to compile test sequences. You can define up to 128 sequence
steps, each of which defines an ARB file from a selection of 64, and plays it a chosen number
of times before continuing on to the next file in the ARB sequence.
Triggering and synchronization
The 3020A provides flexible, configurable triggering facilities from inputs on the front panel
or the PXI backplane. Triggers can be used for addressed selection or stepped incrementing
of list mode. Triggers can generate power bursts and can be programmed into ARB
waveforms to provide trigger outputs for other instruments.
A configurable routing matrix provides flexibility in how you interconnect signals on the PXI
backplane, the LVDS and TTL front-panel inputs, and the module’s internal functions.
Predefined routing scenarios can be loaded, or new scenarios created to meet particular
requirements.
