If a relatively high potential difference is available between components, the distance between components should be large enough to stop discharging.Īs far as a circuit board with mid density is concerned, the distance between components with low power should be considered based on soldering.
In terms of component placement direction, components can only be placed vertically or horizontally. Input signal processing unit and output signal driving components should be placed near board side in order to make input/output signal lines as short as possible and reduce input/output interference. Additionally, components should be placed according to signal flowing direction, functions and modules. A PCB design should feature a frame and the minimum distance between frame line and component pin should be at least 2mm and it is rational to set it to be 5mm.īasically, when it comes to a circuit system containing digital circuit and analog circuit, they should be separated in order to make systems systematically coupled into circuit belonging to the same category.
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