While lacking some of the features in a modern autonomous signal generator front panel controls permit the operator to select any of a dozen or so waveforms in addition to arbitrary waveform creation.
Arbitrary waveform generator block diagram.
A common awg block diagram a closer look at each arbitrary waveform generator awg functional block 1.
These waveforms can be either repetitive or single shot once only in which case some kind of triggering source is required internal or external.
Dds frequency synthesizer as used in an arbitrary function generator afg.
Also frequency period amplitude and offset can be adjusted.
The memory is clocked at the highest sampling rate supported by.
Figure 27 shows a block diagram of a test scenario where a signal generator produces a series of different signals conditional on digital control signals coming from the uut.
Modern digital oscilloscopes generally contain a built in afg.
The resulting waveforms can be injected into a device under test and analyzed as.
With scripting a signal generator can respond to these digital control signals on the fly without stopping generation of its waveform.
The basic block diagram of the dds based arbitrary waveform generator is shown below.
A common use of an arbitrary waveform generator is to stimulate a system with a complex waveform.
A digital representation of a waveform is loaded into awg memory through a variety of software applications such as matlab labview visual studio plus ivi and scpi.
These types of generators have limited bandwidth and costlier than function generators.