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TPA3251D2开发板问题



买的是TI的官方开发板TPA3251D2EVM,设置的是SE工作模式,电源用的是34V输入,再输入为0的时候,输出有一个峰值为0.7MV左右的高频振荡,不知道是什么原因引起的,如图所示。