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PWM调制信号发生与解调方案[求助]

Alex Sun1
Prodigy 40 points
Other Parts Discussed in Thread: UCC28722, TPS61161

用在微型光电开关上，直流光抗干扰能力差，想用调制光。

光电开关的供电电压为DC 10~30V，求推荐芯片与方案~

芯片封装最好像UCC28722一样的SOT23-6小封装。

感谢！