Intel Agilex® 7 Device Family High-Speed Serial Interface Signal Integrity Design Guidelines

ID 683864
Date 6/15/2023
Document Table of Contents

1.3.4. Layer Assignment

  • For high-speed differential traces, avoid long via coupling between the closest transmit (TX) and receive (RX) channels.
  • Make sure the via coupling length is as short as possible to reduce crosstalk.
  • Use shallow layers for high-speed signals, especially for lanes that support PAM4 modulation.