Connect each waveform concern to a physical mechanism and an acceptance criterion. Reflection, attenuation, crosstalk and reference noise require different investigations. A reproducible model and measurement setup make improvements easier to evaluate.
Start with these questions
- Which voltage or timing margin is at risk?
- Are the models valid for the intended operating range?
- Do bench measurements use the same reference planes as simulation?
Read the engineering guides
Apply a tool or checklist
What to keep in the project record
Record model versions, corners, fixtures and instrument settings. Validate the complete channel when simple estimates cannot represent its important discontinuities.