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3152A User Manual
Racal Instruments
©
2001
Using The Instrument 3-39
Sequences
Sequenced waveforms are a means of adding more capability
to the synthesizer. The Model 3152A can link 4096 segments
and loop on each segment up to 10
6
times.
Generating Sequenced Waveforms
What Are
Sequenced
Waveforms?
Sequenced waveforms are made of a number of arbitrary
waveforms that can be linked and repeated in various manners.
Sequenced waveforms are generated from waveforms stored in
a library of memory segments. Before using a sequence of
waveforms, load arbitrary memory with the required waveforms.
Use TRAC# or shared memory methods to load waveforms into
memory.
Information on how to partition the memory and load waveforms
is given in the section entitled
Generating Arbitrary
Waveforms
.
An example of how sequenced waveforms work is
demonstrated in the following figures.
Figure 3-5
shows a
sine(x)/x waveform that was loaded into segment 1.
Figure 3-6
shows a sine waveform that was loaded into segment 2.
Figure 3-7
shows a pulse waveform that was loaded into
segment 3.
The sequence generator lets you link segments in user-defined
order and repeat each segment as many times as needed.
Figure 3-5, Sin(x)/x Waveform Loaded Into Segment 1