Broadcom 5-nm CMOS 800G (4:4) PAM-4 Transceiver PHY with Integrated Laser Driver - BCM85826-DIE

Product Description

Broadcom 5-nm CMOS 800G (4:4) PAM-4 Transceiver PHY with Integrated Laser Driver - BCM85826-DIE

The Broadcom BCM85826-DIE is the industry’s highest performance and lowest-power 200G/lane PAM-4 PHY. It enables 1.6T DR8 and 800G DR4 pluggable transceivers for next-generation AI/ML clusters and Ethernet networking of hyperscale data centers.

The BCM85826-DIE when paired with the BCM85828-DIE, helps reduce routing congestion and makes power network design simpler on the 1.6T paddle card designs.

The BCM85826-DIE leverages the market-leading 5-nm PAM-4 PHY transceiver technology platform, already proven with the BCM85822. The advanced Broadcom DSP technology and equalization techniques compensate for optical impairments while delivering best-in-class module performance in BER and power consumption.

The BCM85826-DIE incorporates a highly differentiated feature set, including multiple line-side FEC options:

• Bypass mode
• Segmented mode
• Concatenated mode

This feature set also includes client-side switch ASIC SerDes interoperability to provide an unmatched competitive advantage to the market.

The BCM85826-DIE is a monolithic 800G (4:4) PAM-4 DSP. It converts four lanes of 212.5 Gb/s from the client side into four lanes of 212.5 Gb/s to drive next-generation high-density optical PAM-4 links inside an octal small formfactor pluggable (OSFP) modules.

The BCM85826-DIE also features crossbar on the client side for easier routing in the PCBs.

The on-chip clock synthesis is performed by a low-cost 312.5/625-MHz reference clock through high-frequency, low-jitter phase-locked loops (PLLs).