Salz SNR & Shannon Limit Study for the Next Speed Node Beyond 112Gbps (& up to 224Gbps)

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Wednesday, August 18 9:00 AM - 9:40 AM

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Event Location

Location: Meeting Room 211AB


Event Information

Title: Salz SNR & Shannon Limit Study for the Next Speed Node Beyond 112Gbps (& up to 224Gbps)

Event Type: DesignCon - Technical Session

Pass Type: All-Access Pass, 2-Day Pass

Theme: 5G,Data Centers


Description

Recently industry and standard bodies have kicked off new projects aiming at 800GbE or even higher than 1TbE. In order to study what is needed for the next speed node beyond 112Gbps, say 224Gbps, this paper investigates different modulation and forward error correction (FEC) schemes over different application interfaces such as die-to-die, package-on-package, chip-to-module, and chip-to-chip. The analysis will start with theoretical bounds like ideal DFE receiver Salz SNR performance and the gap to the channel capacity Shannon limit, followed by adding practical implementation allowances and impairments. The paper will conclude that 224Gbps speed node is promising for some applications within reasonable cost and power efficiency.


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