Intel® Agilex™ Device Family High-Speed Serial Interface Signal Integrity Design Guidelines

ID 683864
Date 9/26/2022
Public
Document Table of Contents

1.3.5. Impedance

  • Strictly control the impedance tolerance of high-speed traces. Generally, 10% can be used for stripline impedance, but 7% is better, especially for the 112G PAM4 signals.
  • Breakout routing usually has limited routing space which may cause impedance discontinuity. Optimize breakout routing trace geometries to reduce the impedance discontinuity for better return loss performance.

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