How to reduce the digital signal-PCB Assembly China
A split in the way still relevant?
Can be used in the following three cases :PCB Assembly this approach requires some medical equipment and patient connection between the circuit and system leakage current is low; a number of industrial process control equipment may be connected to the noise output of large and high power electromechanical equipment; Another case is the PCBA manufacturer layout are subject to specific restrictions.
In the mixed-signal PCB Assembly China boards usually have separate digital and simulation power, can and should use separate power planes. However, the signal lines close to power planes can not cross the gap between the power supply, and all across the gap of the signal lines must be located close to large areas of the circuit layer.
In some cases, the simulation of the power cable to PCB instead of a plane surface is designed to avoid the division of power.