[SI-LIST] Power problem

Dear all
In our product, there is one problem. When the system is turned on, some SDRAM 
would be damaged. The -48V net shape is placed under the 2.5V net shape, which 
is the power supply of SDRAM. I have use VNA to measure the coupling between 
these two power. The coupling is very small. Please give me some advice.

Maybe my analysis method is not right.

Best Regards

Zhangkun
2005.6.28


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