Research Note

December 2021 The right path to 1.6T PAM4 optics: 8x200G or 16x100G?

December 2021

Abstract

LightCounting comments on Marvell’s Industry Analyst Day event and 4x400G MSA announcement

Marvell’s Industry Analyst Day took place virtually on December 7, 2021. During the keynote, Marvell executives highlighted the datacenter networking portfolio with the latest Innovium and Inphi technology. Other products and announcements that stood out for us included:
1. 50G PAM4 DSP Marvell AtlasOne chipset,
2. 100G QSFP-DD optical modules with Coherent DSP technology,
3. Ethernet PHYs for the automotive industry,
4. Plans for 200G per lane PAM4 DSP to support 1.6T transceivers, based on 8x200G optics.

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