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Jonathan Harris

How Do You Analyze ADC Noise? Part 1

Jonathan Harris
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Letís discuss the preparation for IMS2016 and preview the show a bit.
In this installment Iíd like to revisit the example that was covered in my January blog post
We will continue looking at the AD9680 as an example just as we did in part 1. Similar to the real mode operation of the DDC the normalized decimation filter responses are the same regardless of speed grade.
Letís now take a closer look at the decimation filtering and how ADC aliasing influences the effective response of the decimation filtering
Increase the decimation ratio in the DDC to see the effects of frequency folding and translating when a higher decimation rate is employed along with frequency tuning with the NCO.
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