Some people suggest splitting the ground plane in order to isolate the digital ground currents from the analog ground currents. Although the split plane approach can be made to work, it has many potential problems especially in large complicated systems. Can you list some of these problems? One of the major ones is that you can not route a trace over the split in the plane (see Tech Tip Slots in Ground Planes).It is always better to have only a single reference plane for a system.
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发表于 2009-5-6 21:51:37
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