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Impendence?
April 11, 2008
I'm reading a book about jitter and noise when I ran across the word "impendance."
In the text, impendance is used in characterizing the transfer function of an RC network with regard to crosstalk, beginning with an equation. The book reads:
V=ZvCm(dVd/dt)
Where Zv is the impendence of the impacted or victim line and dVd/dt is the time derivative of the driving voltage.
I immediately though that "impendence" should be "impedance." But, I Googled "impendence" and found things like...
"Teseq Inc., a developer and provider of instrumentation and test systems for EMC emission and immunity, has introduced a new impendence stabilization network that is compatible with the highest speed class of Ethernet cables, Category 6."
Now I’m not so sure that "impendance" is a typo that should be “impedance.” Have you ever used the word "impendance" as it is used in the book?
I've never heard of an "iimpendence stabilization network" but I have heard of "impedance stabilization network" Is that a typo too?
Posted by Martin Rowe on April 11, 2008 | Comments (4)