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tlv3501一端接2.5V电平，另一端输入加了2.5V偏置的的20Mhz正弦波。用示波器探头x10得到的方波在电平上有明显抖动？请问下，可能是什么原因造成的？该怎么改进。附原理图和测试图。
在附一下pcb图，top走信号和电源，bottom是铺地，中间有一条电源线走不通，从bottom走了。
