ads1251的CLK引脚怎么外接时钟信号,麻烦推荐一下。
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LV HUI 你好!
提供两种思路供参考:
1、可以参考ADS1251的EVM设计,EVM使用了ICD2053B可编程时钟发生器作为clk输入;
http://www.ti.com/lit/ug/sbau041/sbau041.pdf
2、可以使用MCU的timer输出50%占空比的PWM作为clk输入,调节频率通过设置timer时钟源的分频寄存器来实现。