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What will happen if a PCB designer forgets to add a ground plane in a high-speed digital circuit?

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PCB Design - Design Review and Testing
What will happen if a PCB designer forgets to add a ground plane in a high-speed digital circuit?
AIncreased noise and signal integrity problems
BReduced manufacturing cost
CImproved thermal dissipation
DBetter mechanical stability
Step-by-Step Solution
Solution:
  1. Step 1: Understand ground plane role

    Ground planes provide a reference and reduce noise in high-speed circuits.
  2. Step 2: Identify effects of missing ground plane

    Without ground plane, noise increases and signals degrade.
  3. Final Answer:

    Increased noise and signal integrity problems -> Option A
  4. Quick Check:

    Missing ground plane = Noise and signal issues [OK]
Quick Trick: Always include ground planes for high-speed signals [OK]
Common Mistakes:
MISTAKES
  • Omitting ground planes
  • Ignoring signal return paths
  • Underestimating noise impact

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