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MeasurementBlues
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Re: Uhhh
MeasurementBlues   7/30/2013 11:52:09 AM
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Better yet, download a white paper.

http://spdevices.com/images/stories/white_papers/13-1004_adx_and_digitizers.pdf

Many more examples than in the EDN article, but even that doesn;t tell you how the DSP works.

MeasurementBlues
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Re: Uhhh
MeasurementBlues   7/30/2013 11:50:21 AM
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Of course, you can buy the ADC intervleaving design kit from the author's company.

http://spdevices.com/index.php/products2.

MeasurementBlues
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Re: Uhhh
MeasurementBlues   7/30/2013 11:45:59 AM
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@MD, I agree with your assessment that the main article is weak on the theory. I would have liked to have seen at least a block diagram of the DSP algorithm.

Michael Dunn
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Uhhh
Michael Dunn   7/30/2013 11:34:18 AM
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It's a bit too weak on the theory to make any sort of judgement.

The basic concept of making corrections in the frequency domain sounds attractive.



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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