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1843改为方波CMOS有源晶振来替换无源晶振，这时候这个晶振的供电电压式1.2V还是1.8V呢？我看手册上有写CLKP这个管脚的最大输入电压是2V，是不是可以认为1.8V供电即可？
是1.8v供电，请看数据手册上的Table 8-1. Power Supply Rails Characteristics。https://www.ti.com/lit/ds/symlink/awr1843.pdf
