Daily Archives: July 19, 2021

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When we talk about Low Frequency Analog Signal Package Grounding in the PCB board ground gerber file redrawing, let’s look at the size of the cross-talk in the case of the surface microstrip line. Assuming that the trace is controlled by 50Ω impedance, the line width is 6mil, the dielectric thickness is 3.6mil, and the…

Protective Ground Wire in the PCB Board Reverse Engineering

PCB Reverse EngineeringBy circuitwork July 19, 2021 Leave a comment

PCB Board Reverse Engineering often use protective ground wires for isolation to suppress mutual interference between signals. Indeed, the protective ground wire can sometimes improve the isolation between signals, but the protective ground wire is not always effective, and sometimes even worsens the interference. The use of the protective ground wire must be carefully analyzed…