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MeasurementBlues
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IMS2014
MeasurementBlues   6/3/2014 11:24:36 PM
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Spent today at IMS 2014. NXP had little phone charing stations around the show floor, with Apple 30-pin nd Ligning connectors and micro USB.



MeasurementBlues
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In just 50 years
MeasurementBlues   11/15/2013 6:04:21 PM
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We will have Warp drive.

In just 50 years

MeasurementBlues
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12-bit scopes go mixed signal
MeasurementBlues   11/14/2013 1:36:13 PM
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MeasurementBlues
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EM simulation tools only go so far
MeasurementBlues   11/13/2013 11:45:39 AM
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EM simulation tools only go so far by Bruce Archambeault

Simulation tools can help with designing for EMC, but they don't substitute for an experienced EMC engineer.

MeasurementBlues
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STEM: Too Much or Not Enough?
MeasurementBlues   11/13/2013 11:42:05 AM
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STEM: Too Much or Not Enough?

Around the time I graduated college, starting salaries for engineering graduates were climbing rapidly. My first raise was a whopping 13 percent, so I could be making slightly more than the next year's crop of EE graduates.

MeasurementBlues
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Dell's smells and the FAA
MeasurementBlues   11/13/2013 11:40:39 AM
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Dell's smells and the FAA by Luke Schreier

Two stories jumped out at me this week. The first was the long-anticipated announcement by the Federal Aviation Administration that passengers will be able to use personal electronic devices during all phases of flight, which now notably includes take-offs and landings.

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Characterize a 28Gbit/s Transceiver
MeasurementBlues   11/13/2013 11:38:07 AM
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You've probably noticed that 28Gbit/s serial links are hot topics at DesignCon. The IEEE 802.3 working group specifies four lanes at 28Gbits/s in the emerging 100 Gigabit Ethernet family of standards for copper wires and backplanes.

Read more at Characterize a 28Gbit/s Transceiver by Colin Warwick

 

 

MeasurementBlues
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MeasurementBlues
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Jitter: Measurement References Matter
MeasurementBlues   11/8/2013 10:19:40 AM
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If you characterize high-speed digital signals, you're surely familiar with the idea of separating jitter into components such as random jitter (RJ), deterministic jitter (DJ), periodic jitter (PJ), and intersymbol interference (ISI). What is not always discussed is the reference from which jitter measurements are made.

Check out the animated graphics of sinusoidal jitter.



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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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