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LDO滤波效果好,还是磁珠滤波好

采样模组对电源纹波要求比较高,主板上有射频[信号,防止通信时产生的纹波对采样模组产生影响,需要对模组电源做处理,目前有两种方案,一种是通过LDO来稳定电源,另外一种则是通过磁珠来滤波,这两种方案那种性价比比较高?