AM3352电源和参考地问题

Hello，

I have two questions about the AM3352.

1)       If we don’t use the RTC and LCD function, how can I handle the “VDDS_RTC”, “VDDS_PLL_CORE_LCD” and “VSS_RTC”? Not connected or others?

2)       I notice that there some reference grounds need be separated with signal GND , like “VSS_RTC” and “VSS_OSC”. Can you give the reason?

Thanks,

Leo

Jian Zhou：

Hi

1)这几个信号都是对上电时序要求的，所以无论你用不用这些模块，都必须按照上电时序要求上电。

2)我们最近的设计建议，是把这些地和数字地都共起来，否则会引入噪声。