DSP Signal Generator Implementation On C6713 DSK - ComLab

Unlike function generators, which are limited to a simple set of waveforms; AWGs are much
more flexible. AWGs are generally more expensive than function generators, and are often more
highly limited in available bandwidth; as a result, they are generally limited to higher end design
and test applications [11].
Figure 1.6: Arbitrary Waveform Generator [12]
AWGs can also operate as conventional function generators. Mostly they include standard
waveforms such as sine, square, ramp, triangle, and noise. Some units include additional built in
waveforms such as sinx/x, cardiac waveform while other may display a graph of the waveform
on their screen. Some AWGs allow multiple channels to be operated with precisely controlled
phase offsets or ratio-related frequencies. This allows the generation of polyphase sine waves
and IQ constellations. Complex channel modulations are also possible [12].
1.2.3 Applied Fields for Signal Generator
The generation of signals is an important development in the troubleshooting and development
of electronic design. The signal generator is used to provide known test conditions for the
performance evaluation of electronic system design and for replacing signals that are missing in
system during repairing work. While signal generators are widely used to test and maintain a
wide range of RF equipment, such as radio receivers and transmitters, they are also extremely
useful for testing digital, clock driven systems, especially high speed serial storage and serial
communication ICs, circuit boards and devices. In general signal generators are used in
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