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can you explain slide 13 again.

Author

quite similar to what Eric teaches.

Author

Thank you Alfed and Martin.

Author

sorry, my typo:  replace "non-resonant" with non-50 ohms"".

 

Author

Thanks Al, I'am begining to understand.

Author

Hello again,

So if I measure the null-to-null spacing in the S11 plot from a non-resonant transmission line and then calculate the delay using your formula from yesterday:  delta f in GHz) = 1/(2*Td) is Td also the group delay?

Author

ukdave, thanks. That's often done on wafers as well, for failure analysis.

Good Afternoon, 9AM in the Morning here

Author

Joe, here's the lonk to yesterday's slides

http://downloads.deusm.com/eetimes/EETU/VNA-Manifesto-Jan-22.pptx

The Cal Structures are on the same board PANEL but not part of your finished board.

Author

Joe I'll get the link for you.

Travel glitches kept me form the class yesterday. Is the slide show and audio archived?

Author

No. I wouldn't go this year.

Author

On EMI/SI/PI panel and will be in the Simbeor Booth

 

Author

Anyone going to DesignCon next week?

Remember to post questions here

"I use airlines every week," said Al Neves, the self-proclaimed SI (signal integrity) Practitioner, at DesignCon 2013. He's also the Chief Technologist with Wild River ...

Note freq is in 10's of GHz

Author

What would the group delay average be?

so boards usually cal structures on them? What if there is no real estate?

Would you please define group delay?

Author

Remember to post questions here.

I'm going to need a refresher on Eigenvalues!

no audio, this webcast sucks!

Author

Good evening from Valladolid, Spain in the West Europe

 

Author

which slide is he on?

 

Author

hi frm MN/St. Paul

 

Author

 

Mishawaka is half way between Chicago and Detroit.

If you aim at Notre Dame you will miss Mishawaka by two miles.

 

 

hello from Mishawaka

 

Greetings from Scottsdale, AZ

Author

Colleen, what will yu do when Winter comes?

Good Morning Only 7 degrees this morning in Boston!

 

Author

Everyone, remember to downlaod your sildes from Today's Slide Deck

Hello Rodney. It's time for me get this set up. Day 4.

G Morning All

Rock n Roll!

Author


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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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