PCB Design - Advanced Routing Techniques
What is the most probable effect if a PCB designer applies impedance matching but neglects length matching in a differential pair?
What is the most probable effect if a PCB designer applies impedance matching but neglects length matching in a differential pair?
medium📝 Formula Result Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand impedance matching
Impedance matching reduces reflections but does not address timing differences.Step 2: Importance of length matching
Length matching ensures signals in differential pairs arrive simultaneously, preventing skew.Final Answer:
Signal timing skew causing data errors. -> Option CQuick Check:
Length mismatch causes skew [OK]
Quick Trick: Length mismatch causes timing skew [OK]
Common Mistakes:
MISTAKES- Assuming impedance matching fixes timing issues
- Confusing crosstalk reduction with length matching
- Believing power distribution is affected by differential pair length
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