Tom Davis
Newbie level 1
Hello All,
It looks to me in case of using split GND plane for AGND and DGND, one probably places components like A/D, and D/A directly above and across the split of the 2 GND planes with the digital and analog interfaces point to the right direction respectively.
What really happen here ? It looks like inside the ICs, we still possibly violate routing analog traces over digital GND plane and vice-versa since this is unknown ? How large the split should be or should not be ?
Also any method in selecting ferrites to connect these GND together like what parameters values ?
It looks to me in case of using split GND plane for AGND and DGND, one probably places components like A/D, and D/A directly above and across the split of the 2 GND planes with the digital and analog interfaces point to the right direction respectively.
What really happen here ? It looks like inside the ICs, we still possibly violate routing analog traces over digital GND plane and vice-versa since this is unknown ? How large the split should be or should not be ?
Also any method in selecting ferrites to connect these GND together like what parameters values ?