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PCB wiring priority requirements

2022-04-08


PCB wiring priority requirements

The most professional PCB process sharing

1. Priority of key signal lines:
Key signals such as power supply, simulated small signal, high-speed signal, clock signal and synchronization signal are preferred.
2. Priority principle of wiring density:
Start wiring from the device with the most complex connection relationship on the single board. Start wiring from the area with the most dense connections on the board.
3. Key signal processing precautions:
Try to provide special wiring layer for key signals such as clock signal, high-frequency signal and sensitive signal, and ensure its minimum loop area. If necessary, methods such as shielding and increasing safety spacing shall be adopted. Ensure signal quality.
4. Impedance control:
The network with impedance control requirements shall be arranged on the impedance control layer, and its signal cross division must be avoided.