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SN74LVC2G125: 几个问题

Part Number: SN74LVC2G125

1.电路里采用的mPCIE接口并复用mSATA,所以RX加上耦合电容这样做可以吗?(PCIE通常只在TX端接电容)

2.PCIE参考时钟被WWAN卡复用为UART,于是采用SN74LVC2G125DCU3,不知道这个器件在高阻态会有多少负载电容,有多少影响,想请教一下这样设计是否可以。