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DSP的核电压问题,UCD9222,UCD7242

Other Parts Discussed in Thread: UCD9222, UCD7242

在我的设计里,UCD9222的每路对应一个UCD7242,对应的UCD7242的两路输出并联,现在调试时发现一点问题,我设计的Vout为0.9V,但是实际只有0.82V,并且波动很大,如下图所示,有那位大侠碰到过吗,感谢指导指导啊!

 在上图中,输出电压波动特别大,大概的原因是什么呢?或者一些排查思路,感谢了!

 

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