Технология PCB - требования изготовителя платы батареи к проводке платы

1. Conventional signal line width and line spacing requirements
Taking into account the processing capacity of the завод таблеток батареи, проектировать плата цепичетвёртый этаж или ниже, the line width and line spacing are required to be ‰¥5mil; in the six-layer and восьмиразрядная платапроектировать, the line width and line spacing are required to be ‰¥4mil. широкий замысел провода большого тока совпадает с линией электропитания.

2. Power line width and line spacing requirements
1. The line width requirement of VBATT electric line
The trace width requirements from the input end of the battery connector to the power end of the PA are as follows:
When the wire length is less than 60mm, ширина провода требует 137х1.5mm;
When the trace length is greater than 60mm and less than 90mm, the line width is required to be ‰¥2mm.
Убедитесь, что PA работает нормально, the total length of the power lead from the battery connector to the PA should not be greater than 90mm.
2. The line width requirements of the remaining power leads
Depending on the current, the width of different power lines (working current less than 500mA) is generally set between 0.2mm - 0.4mm.
3. reduce the trace spacing requirements for crosstalk between traces
If crosstalk is easy to occur between two traces, расстояние между двумя дорожками должно быть 2 вт шириной, где W - ширина траектории, and avoid direct overlap between the upper and lower layers (for example, there is no ground layer isolation).

4. improve the high-frequency characteristics of the trace
In order to improve the high-frequency characteristics of high-speed signal wiring, соединение должно вращаться под естественным углом R. если это невозможно, a 135-degree turning method should be adopted, and the use of right-angle or sharp turning wiring should be avoided;
The device grounding PIN should be directly connected to the ground. В случае необходимости, the nearest grounding method should be adopted, Но ширина дорожки должна быть - 0.5mm, Следует избегать заземления на длинных проводах.
5.the wiring of large devices
In order to ensure the anti-stripping characteristics of large devices, танталовый конденсатор и батарейный соединитель, the lead wires connected to the pads of these devices can be added with teardrops or copper attached, и следует добавить больше ссылок на лунки других уровней.

6.the distance between the trace and the edge of the board
The distance between the trace and the edge of the board should be designed to be more than 0.25 мм.