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您好，请问一下我在使用AWR1243P做级联系统设计的时候，给主片输入的40MHz差分时钟和由主片给从片输出的Reference clock和FM_CW_CLKOUT 20GHz时钟是否相参，即相位是否对齐？
40MHz 不需要对齐，请参考下面的级联手册上的说明2.3 40 MHz (System) Reference Clock Synchronization.There is no phase/delay matching requirements on this clock. https://www.ti.com/lit/an/swra574b/swra574b.pdf
您可能没有理解我的意思，我想问的是我给主片输入的40MHz的时钟和主片输出给从片的20GHz时钟的相位之间是否对齐？
40MHz和20GHz时钟不需要相位对齐。
