Broadcom Unveils 3nm 400G/Lane DSP Enabling 1.6T to 3.2T Optical Modules
Broadcom has begun sampling its Taurus BCM83640, the industry’s first 3nm 400G/lane optical PAM-4 DSP optimized for 1.6T pluggable transceivers with integrated laser driver, best-in-class BER and power consumption. The device supports IEEE and OIF standards, scales from 1.6T to 3.2T optical modules and underpins future 204.8T switch architectures.
1. Taurus BCM83640 400G/lane DSP Debut
Broadcom has started sampling its Taurus BCM83640, the first monolithic 3nm PAM-4 optical DSP delivering 400G per lane for 1.6T transceiver modules. Featuring an integrated laser driver and proven interoperability with 400G EML and photodiodes, it meets IEEE and OIF standards, supports LR links, and scales optical module performance up to 3.2T. By doubling bandwidth per lane to 400G, the DSP enables 102.4T switching capacity in a 1RU system and paves the way for future 204.8T networks using 3.2T pluggable modules.