Explanation of the separation of analog and numerical fields!

(A) Why do we need to separate the simulated and numerical fields?

Answer:

Both analog and digital signals need to flow back to the ground, because the speed of digital signal changes is fast, so the noise on the digital ground will be very high, analog signals require a clean reference. If the analog and digital fields are mixed together, the noise will affect the analog signal. Generally, the simulated and numerical locations must be separated and then connected together through thin cabling or single points of connection. The general idea is to try to block the noise from the digital ground to the simulated ground. Of course, this is not a very strict requirement that the simulated and digital locations must be separated. If the simulated numbers nearby are still very clean, they can be combined.

(B) Why are people and pigs separated?

Answer:

Both humans and Pigs need to live on the ground, because the evolution of swine civilization is slow, so that they will make the ground dirty, and people need a clean ground to live. If people and pigs are mixed together, the dirty stuff produced by pigs will affect people. In general, the ground of human life and the ground of swine life should be handled separately (covering pigsty circles) and then connected together through a fence or through a door. The general idea is to try to block the dirty things in the pigsty from escaping to the ground of human life. Of course, this is not a very strict requirement that people and pigs must be separated. If people are still very clean, (pet pigs) can live together.
In the future, if you still don't understand why the simulated and digital fields should be separated, let him go to the pigsty to experience it.

(Conversion) Explanation of the separation of analog and numerical fields!