PCB Design - Advanced Routing Techniques
Given a PCB with a 10 MHz clock signal trace, which technique will most effectively reduce EMI radiated from this trace?
Given a PCB with a 10 MHz clock signal trace, which technique will most effectively reduce EMI radiated from this trace?
medium📝 Formula Result Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Identify EMI reduction methods for clock signals
Ferrite beads add impedance at high frequencies, reducing noise and EMI on clock lines.Step 2: Evaluate other options
Long straight traces increase antenna effect; wider traces without ground increase EMI; removing ground planes worsens EMI.Final Answer:
Adding a series ferrite bead on the clock line -> Option DQuick Check:
Ferrite bead reduces EMI on clock lines [OK]
Quick Trick: Use ferrite beads to block high-frequency noise [OK]
Common Mistakes:
MISTAKES- Thinking longer traces reduce EMI
- Ignoring ground plane importance
- Assuming wider traces always help EMI
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