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Up Converter design + LO + uController over the same PCB

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jacobocd

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I want desgin an up-converter with an OL integrated over the same PCB. I've designed both separated, but now I want add also an microcontroller, to control and monitoring power and frequency parameters.

What type of risk can I have?

I think that digital signals could be coupled into RF signals. Is it possible?Isolation between all parts should be so important.

Another issue to get a good performance, could be the ground connection? The separated connection between digital, analog and power supply is important?

Experinced people could give me their opinion and another topics to consider.

Thanks a lot.
 

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