Following these basic design guidelines for PCB design and layout can make capacitive sensing applications more reliable.
Currently, safety regulations regarding the use and design of electronic devices are continuously emerging,
Low speed paths have several more functional components than high-speed paths.
Due to the 1 to 2ns rise and fall time of digital isolators, they are often prone to signal reflection in long signal routing situations,
Place the power layer beneath the ground layer. These two reference layers form an additional high-frequency bypass capacitor of approximately 100pF/in².
Use 45-degree trace routing (or chamfered bends) instead of 90-degree bends to maintain effective trace impedance and avoid signal reflections.
