noise isolation

PCB Design Criticized? Master These Two Points to Become an Expert

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PCB Design Criticized? Master These Two Points to Become an Expert

▲ For more exciting content, please click on the blue text aboveand follow us!Typically, there are no dedicated courses in universities that teach the fundamentals of PCB grounding and decoupling; knowledge in this area often comes from laboratory experience or sharing from peers and seniors. Most electrical engineering graduates learn these skills on the job, … Read more

Is VSS Directly Connected to VSSA Inside the MCU? Neither!

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Is VSS Directly Connected to VSSA Inside the MCU? Neither!

First, the answer: Inside the MCU chip, a resistor (or an equivalent “weak connection”) is placed between VSS and VSSA, rather than a direct short circuit or complete open circuit. This is based on the core ideas of “single-point grounding” and “noise isolation”, but also requires additional consideration of the physical realities and reliability of … Read more