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PCB, Embedded, Arduino
Via is predominantly capacitive. Its capacitance increases signal rise and fall time and therefore reduce board speed. Via’s capacitance...
Worked on a digital project recently with some board schematic and layout engineers. There are several digital components on...
Worked on PCB design with DDR3. Found a very useful DDR3 PCB design guide from Freescale. This app note...
The following are some EMI guidelines I learned out of my experience. Put it together and think it should...
A basic embedded system design book.
Here is Mortensen and I have been working on high speed digital board, analog board, and RF board design...
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Mortensen posted an update 1 year, 2 months ago · , 1, 2
Which of trace A and B has more critical EMI issue?
Maybe it is straightforward for a seasoned EMI engineer. This interesting article uses Nimbic nWave to simulate the EMI issue and shows B is more…[Read more]
Use EMI scanner to see EMI emission and show the effect of decoupling capacitor
EMI scanner is a powerful and easy-to-use tool to deal with EMI…[Read more]
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Mortensen commented on the post, Some PCB EMI Guidelines Learned out of My Previous Projects 1 year, 4 months ago · , 0, 0
Hollis, I don’t think it is necessary to have metal along the edge of board. If you do, you may want to make sure it doesn’t form a loop otherwise there could be EMI issue.
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