The purpose of this application note is to provide an understanding of the basic differences between True and DDS Arbitrary Waveform Generators. With AWGs, there are two fundamental design variations: DDS (Direct Digital Synthesis) and True (Traditional) Arbitrary Waveform Generators. Each design variation has its own unique advantages and disadvantages. Because the application determines instrument selection, an understanding of the basic differences between True and DDS AWGs is highly beneficial.

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AN401: True vs. DDS Arbitrary Waveform Generators