自己按照芯片手画了一个trf7970的应用电路，参照贵公司的 DLP-7970ABP 进行静态测量，在3.3v供电状态下，发现自己电路的RX_IN1和RX_IN2引脚的电压在1.7v左右，而同样的状态下 DLP-7970ABP 的该引脚电压值为0，测试时，该引脚并未外接任何器件。想请教下这可能是什么问题，该怎么解决呢？
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