Here are some ways to avoid interference between digital circuit modules and analog circuit modules:
- Reasonable layout: Separate the digital circuits and the analog circuits and keep a certain distance apart.
- Power isolation: Use separate power modules or perform power filtering to reduce the impact of power noise.
- Ground design: Adopt an appropriate ground design to ensure that the ground lines of digital and analog circuits are separate and well-connected.
- Filtering: Use filtering circuits at the connection points of digital and analog signals.
- Shielding measures: Use shielding covers or shielding materials to reduce interference.
- PCB wiring: Plan the wiring reasonably to avoid cross-interference between digital and analog signal traces.