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TUSB217A: TUSB217AI使用异常

Part Number: TUSB217A


下图是没有加TUSB217的眼图

下图是加了TUSB217的眼图,

加了TUSB217后,眼图没有张开,信号幅度明显下降呢?请问可能是什么问题,怎么解决呢?急等中。。。

下面是原理图和PCB图。

tusb217_sch_211119.pdf