[SI-LIST] Mixed signal: partitioning GND or unique plane ?

Hi,

I read some books and papers saying that one should divide the PCB ground
plane into  analog, digital, I/O areas...(e.g. "PCB design techniques for
EMC compliance" M.  Montrose) and some other papers are saying that the
best practice is juste using a unique ground plane but placing the
components into block areas controling the return curent flow... (e.g.
"Grounding and Shielding techniques" R.Morrison and, "Best practice in
circuit board design" T. Jarvis)

Is there a best practice ? Can I have some comments ?

Thanks,

Thomas.


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