Routing Signals Between PCB Layers

Part 1: An ESD Example Signal Current Flow in a Layer Transition Abstract: Printed circuit board, PCB, signal paths must often change layers in a board stackup. Under some conditions this can cause problems. An ESD example is used to …
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PCB Protection Can be Compromised by Ground Structure

Abstract Printed Circuit Board designers sometimes place protective devices on external signals as they enter a PCB and shunt the current from these devices to a separate “noise” ground distinct from the board signal ground. An analysis is given that …
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Test Header

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