Signal Integrity Basics for Layout
Controlled impedance, return paths and length matching keep signals clean above tens of MHz.
Impedance control
Match trace geometry to the target Z; reference a continuous plane.
Return path
Gaps under a signal break its return and create noise.
Matching
Length-match critical nets within the budget the protocol allows.
Key Takeaways
Key Takeaways
- Reference a continuous plane.
- Avoid gaps in the return path.
- Length-match only where it matters.
