PCB Design - Advanced Routing Techniques
A designer calculates the impedance of a PCB trace but gets a value that is too low compared to the target. Which of the following is the most likely error?
A designer calculates the impedance of a PCB trace but gets a value that is too low compared to the target. Which of the following is the most likely error?
medium📝 Formula Fix Q14 of 15
Step-by-Step Solution
Solution:
Step 1: Understand how trace width affects impedance
Larger trace width lowers impedance.Step 2: Identify why impedance is too low
If impedance is too low, the trace width is likely larger than intended.Final Answer:
Using a trace width larger than specified -> Option CQuick Check:
Too low impedance = trace too wide [OK]
Quick Trick: Too low impedance? Check if trace is too wide [OK]
Common Mistakes:
MISTAKES- Blaming trace height without checking width
- Ignoring dielectric constant effects
- Focusing only on trace length
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