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关于PCB的,不知道对大家有没有用

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pcb design guideEMC DESIGN GUIDE
HENRY OTT CONSULTANTS

PCB DESIGN GUIDELINES Guidelines for the design and layout of high-speed digital logic PCBs. Give a lot of consideration to component placement and orientation. Avoid overlapping clock harmonics. Make a harmonic table for each clock. Clock signal loop area must be kept as small as possible. Get paranoid about clocks! Use multilayer boards with power & ground planes whenever possible. All high frequency signal traces must be on layers adjacent to a plane. Keep signal layers as close to the adjacent plane layer as possible (< 10 mils). Above 25 MHz PCB's should have two (or more) ground planes. When power & ground planes are on adjacent layers, the power plane should be recessed from the edge of the ground plane by a dista……
标签:designguide
关于PCB的,不知道对大家有没有用
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