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我用信号发生器给DRV8662提供方波信号，然后信号发生器设置的频率是200赫兹，然后经过DRV8662后，示波器上显示的频率只有40或者50赫兹。求解这是怎么回事？怎么解决？
您好，
DRV8662不能直接输入PWM波，需要用滤波器平滑一下转换成模拟信号输入，具体可以看一下数据手册8.4.1 startup/shutdown sequencing部分。
