The PCB circuit board is a support component of components and devices in electronic products.Even schematic diagram is correct, but uncorrected PCB layout design will also effect the reliability of electronic products. In the design of printed circuit boards, attention should be paid to the correct method, to comply with the general principles of PCB design, and should meet the requirements of anti-interference design.
PCB circuit board layout design should follow the principles:
Consider the dimension of the PCB. When the dimension of the PCB is too large, the printed line is long, the impedance is increased, the noise resistance capacity is reduced, and the cost is increased; when PCB dimension is too small, heat dissipation is not good, and the adjacent lines are easily interfered. After determining the dimension of printed circuit board, the location of the special component is determined. Finally, according to the functional unit of the circuit, arrange all the components of the circuit board.
The following principles shall be observed when determining the location of a particular component:
The circuit components of the PCB layout, to meet the requirements of anti-interference design:
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