Bird
0
0

If a PCB designer adds a grounded guard trace between two signal lines, what is the expected impact on crosstalk?

medium🧠 Conceptual Q5 of 15
PCB Design - Advanced Routing Techniques
If a PCB designer adds a grounded guard trace between two signal lines, what is the expected impact on crosstalk?
ACrosstalk increases due to added capacitance
BCrosstalk is reduced by shielding
CNo change in crosstalk
DSignal delay increases but crosstalk remains
Step-by-Step Solution
Solution:

  1. Step 1: Understand guard trace function

    A grounded guard trace acts as a shield reducing electromagnetic coupling.

  2. Step 2: Effect on crosstalk

    This shielding lowers crosstalk between adjacent signal lines.

  3. Final Answer:

    Crosstalk is reduced by shielding -> Option B

  4. Quick Check:

    Guard trace = Crosstalk reduction [OK]
Quick Trick: Guard traces shield signals, lowering crosstalk [OK]
Common Mistakes:
MISTAKES
  • Thinking guard traces increase crosstalk
  • Ignoring shielding effect
  • Confusing capacitance impact with crosstalk increase

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More PCB Design Quizzes
Design Review and Testing - Test point placement - Quiz 11easy Design Review and Testing - Design review checklist - Quiz 14medium Design Review and Testing - 3D visualization for clearance check - Quiz 2easy Design Review and Testing - Why design review catches errors before fabrication - Quiz 4medium Manufacturing Output - Why correct output files enable fabrication - Quiz 7medium Multi-Layer PCB Design - Signal and power layer planning - Quiz 8hard Multi-Layer PCB Design - Four-layer stack-up design - Quiz 6medium Multi-Layer PCB Design - Layer transition strategy - Quiz 13medium Multi-Layer PCB Design - Via stitching for ground planes - Quiz 9hard Multi-Layer PCB Design - When to use more than two layers - Quiz 11easy