TI的CC2538EM PCB使用的是四层板,SmartRF06EB EVM Layer Plots PCB也使用的是四层板,市面上也有使用两层板的。选几层板较好?
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TI的CC2538EM PCB使用的是四层板,SmartRF06EB EVM Layer Plots PCB也使用的是四层板,市面上也有使用两层板的。选几层板较好?