我在使用TXB0108时,遇到如下问题:100M的晶振产生3.3V,100MHZ的时钟信号输入B1,然后从A1输出的信号幅值是1.8V,但时钟信号怎么变成33MHZ,为什么?不是Buffer只进行电平转换吗,怎么信号频率变了?(图中的VCCIO是3.3V)。(由于整体电路中有inout信号,所以必须选这种双向电平自动转换的Buffer。)
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