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DU00000001
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(Mostly) stick to the "good old DI"
DU00000001   7/13/2013 7:39:13 PM
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I expect reference designs to help getting a system, subsystem or single chip up and running. They might spark my intuition but are not expected to do so.

The 'typical' design idea is less about the application of  something given than about solving a problem with deficient means: working around lack of pins, stretching design limits, and so on.
The design ideas I am perceiving are far beyond reference designs.
AND: these DIs are the things sparking my imagination!

What could help in a limited number of applications (thinking of SMPS and high frequency designs) is what is given in the better reference designs: layout (hints) and tips on how to address "first order" problems.



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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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