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请教:AMC7836的SPI的AC特性的spec相关问题?

Other Parts Discussed in Thread: AMC7836

问题1:AMC7836的SDO在空闲时为高阻,请问是否建议作上拉或者下拉?(我看手册中典型电路好像没有上拉)然后,请问如果不作上下拉对芯片正常SPI通信是否存在较大风险?

问题2:请问AMC7836的SPI时序参数中的tODZ和tOZD在测试时是否对SDO信号线作了上拉或者下拉?(没有加上下拉的时候难以采到SDO的driven to tri-state 的边沿)