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寻找一个LED驱动器:I2C接口,18通道,12bit-PWM输出,频率50HZ



是否有能够满足这些要求的PWM-LED驱动器:

I2C数据接口,

18个输出通道,(或者至少12个通道)

每个通道都有独立的12bit-PWM输出(至少12-bit的精度),

PWM频率可以设置为50HZ