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Question: What is "F2" Jitter?
Answer: Duty Cycle Distortion (DCD) has been a term used to describe conditions where the duration of individual bits vary. A new variant of DCD is becoming common, called F/2, or simply F2. This can be caused by a final 2:1 mux with imbalance between the two inputs making every other bit consistently longer or shorter, regardless of whether it is a one or a zero. Because this phenomenon is becoming common in high speed systems, it is starting to appear in receiver stress testing recipes as a required ingredient. The BERTScope is now capable of introducing F2 as a calibrated stress source. More here.
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Science Puzzler
Why does the pitch of the wind instruments increase as an orchestra
warms up? Why does the pitch of the string instruments decrease?
Click for
Answer
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Quote of Note
"When you are going through hell, keep going."
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Sir Winston Churchill (1874-1965), British Statesman, prime minister, author |
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Guess What?
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for answer)
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