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Broadcom 5-nm CMOS 800G PAM-4 Transceiver PHY with Integrated Laser Driver in Kuwait

Broadcom 5-nm CMOS 800G PAM-4 Transceiver PHY with Integrated Laser Driver

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Special Features

  • Single-chip PAM-4 PHY delivers 800GbE over optics:
  • Backward compatible with 400G optical modules via forward gearbox support:
  • Flexible routing with client-side crossbar support:
  • 100G repeater mode supported:
  • Reduced power FEC monitoring in repeater modes with subsampling feature:
  • FEC termination and generation supported:
  • Differential line-side output supported:
  • TX FIR support on both line and client sides:
  • Client-side interface compliant with:
  • IEEE 802.3ck C2C (Annex 135F) for medium-reach channels:
  • IEEE 802.3ck C2M (Annex 135G) for chip-to-module channels:
  • CEI-112G-VSR/MR for shortreach (VSR) and medium-reach (MR) channels:
  • IEEE 802.3cd standard-compliant KP4 and end-to-end FEC bypass operation:
  • Client-side link-training support:
  • Line-side and client-side loopbacks:

Description

The Broadcom BCM85822 is a top-tier, low-power 800GbE PAM-4 PHY transceiver, driving four lanes of 226-Gb/s PAM-4 at 113 Gbaud, supporting 400G DR1.2 and 1.6T DR4.2. Building on the proven 5-nm PAM-4 PHY platform, it accelerates 1.6T OSFP-XD optical module availability. Advanced Broadcom DSP and equalization techniques mitigate optical impairments, maintaining the world's lowest power pluggable and co-packaged optical solutions for 51.2-Tb/s and higher-density switch ASIC deployments. The BCM85822 boasts a unique feature set, including integrated laser drivers, leading FEC options, and client-side switch ASIC SerDes interoperability, offering an unmatched market edge.

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