Transcription of Section 5 High Speed PCB Layout Techniques
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Section 5 High Speed PCB Layout Techniques
High Speed Analog Design and Application Seminar5-1 texas InstrumentsSection 5 High Speed PCB Layout TechniquesScenario: You have spent several days, no maybe weeks, perfecting adesign on paper and also using Spice to ensure the design exceeds allexpectations. You hand the schematic to your Layout person who puts alleverything on a printed circuit board (PCB). The PCB comes back in a weekor two and is finally populated and ready to test. But it doesn t work!!!!Why not? On paper it works!! Spice said it works!! But it doesn t work!!This scenario happens more often than not and the reason many circuits donot work as expected is due primarily to the PCB Section looks at some key fundamentals of high Speed PCB layouttechniques so that hopefully the above scenario will never happen to Speed Analog Design and Application Seminar5-2 texas Instr
Return current density is highest directly under (or over) the signal trace it was sourced from. Even if a solid ground plane is used, the concentration of current flow will still be adjacent to the signal source trace. High Speed Analog Design and Application Seminar 5-6 Texas Instruments
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