Reverse Engineering Multilayer PCB Board to solve interference between digital circuit modules and analog circuit modules is one of the most cost effective way by modify circuitry schematic diagram and re-layout printed circuit board circuitry scheme diagram;
Reverse Engineering Multilayer PCB Board to solve interference between digital circuit modules and analog circuit modules is one of the most cost effective way by modify circuitry schematic diagram and re-layout printed circuit board circuitry scheme diagram
If the analog circuit (RF) and the digital circuit work separately, they may work well separately. However, once the two are placed on the same circuit board and work together with the same power supply, the entire system is likely to be unstable.
This is mainly because the digital signal frequently swings between ground and the positive power supply (>3 V), and the period is extremely short, often in the order of nanoseconds. Due to the large amplitude and short switching time, these digital signals contain a large number of high frequency components that are independent of the switching frequency.
This is mainly because the digital signal frequently swings between ground and the positive power supply (>3 V), and the period is extremely short
In the analog part, the signal transmitted from the wireless tuning loop to the receiving part of the wireless device is generally less than 1μV. Therefore, the difference between the digital signal and the radio frequency signal can reach 120dB. Obviously, if the digital signal and the radio frequency signal cannot be separated well, the weak radio frequency signal may be destroyed.
As a result, the working performance of the wireless device will deteriorate or even fail to work at all.
