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Improving COM Accuracy for 400G Ethernet
This white paper addresses the critical need for accurate Channel Operating Margin (COM) predictions in the evolving landscape of high-speed Ethernet signaling.
Key points include:
- The impact of Ratio Level Mismatch (RLM) on signal integrity and margin predictions.
- Introduction of an outer-eye-referenced RLM derating method to improve COM accuracy.
- Insights into how non-linear compression affects outer and inner eye degradation.
- Validation of the proposed method through COM simulations under IEEE 802.3 400G-KR configurations.
- Practical implications for design teams in achieving reliable link performance for next-generation Ethernet links.
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