PCB Design
Printed Circuit Board (pcb): All You Need to Know
Submitted by Emanuele on September 27, 2008.
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"A printed circuit board, or PCB, is used to mechanically support and electrically connect electronic components using conductive pathways, or traces, etched from copper sheets laminated onto a non-conductive substrate. Alternative names are printed wiring board (PWB),and etched wiring board." from Wikipedia - Printed Circuit Board. In its more pure form it is simply a normally flat plastic or ceramic substrate in which alternative layers of insulators and conductors are grown sequentially to form isolated conductive paths to transfer signals and current in and out of electronic components. |
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PCB DESIGN GUIDELINES. Guidelines for the design and layout of high-speed digital logic PCBs.
Submitted by Chris on January 24, 2008.
• 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).
ND3260 Print Circuit Board Design Guidelines
Submitted by Chris on January 24, 2008.
This document provides guideline for the design of ND3260 print circuit boards.
The material includes demo board placement, schematics, layout guidelines, general USB 2.0 considerations, BOM, Flash ROM supporting list. For more detail please refer to ND3260 the Multi-Format Flash Memory Card Reader with USB2.0 HS Interface Specification.
