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TXV0108-EVM: TXV0108_EVM的JA_1到JA_8的对地电阻为几十欧

tong siqi
Prodigy 40 points
Part Number: TXV0108-EVM
Other Parts Discussed in Thread: TXV0108,

设置VCCA为3.3v，VCCB为1.5v，DIR=VCCA，OE为0，将一个3.3v电平的脉冲输入SMA_A_1，用示波器测量JA_1接口发现脉冲高电平变为1.5v，然后用万用表测量TXV0108_EVM的JA_1到JA_8的对地电阻为几十欧，这现象正常吗