FAQ: How does the REF CLK performance affect the DDS output performance?

Document created by DSB Employee on Mar 19, 2010Last modified by AndyR on Jan 31, 2012
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Q.

How does the REF CLK performance affect the DDS output performance?

 

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A.

The DDS is basically a high resolution sine source frequency divider. Frequency drift, timing jitter, or excessive phase noise associated with the REF CLK source will transfer to the DDS output. Therefore, the REF CLK performance can limit the DDS performance.

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