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Broadcom introduces Taurus DSP supporting 400G per lane for data center connectivity
Wednesday, March 11, 2026 at 04:16 PM
Broadcom has announced or introduced its Taurus DSP which supports 400G per lane throughput for high-speed data center networking. This advancement in digital signal processing (DSP) technology is critical for scaling AI infrastructure and optical interconnects to higher bandwidths.
Context
At the OFC 2026 conference, Broadcom announced the availability of the Taurus BCM83640, the industry’s first 3nm 400G/lane optical PAM-4 Digital Signal Processor (DSP). This breakthrough doubles the throughput per lane compared to current 200G architectures, enabling the production of high-density 1.6T optical transceivers. The monolithic chip features an integrated laser driver and is designed to support the massive bandwidth requirements of next-generation AI clusters and data centers.
This release is a critical milestone for the AI supply chain as it lays the foundation for future 3.2T optical modules and 204.8T switching capacity. By reducing component counts and power consumption, the technology addresses the scaling challenges of gigawatt-scale AI infrastructure. Analysts project that over 100 million units of 1.6T and 3.2T transceivers will be shipped over the next five years, with Broadcom positioning itself as the primary provider of the essential high-speed silicon.
Sources (10)
Broadcom Delivers Industry's First 400G/lane Optical DSP for Next ...Broadcom's 400G/lane Optical Solutions Pave the Path Toward 200T | Khanh Lam, BroadcomBroadcom Delivers Industry’s First 400G/lane Optical DSP for Next-Generation AI Networks | Markets InsiderBroadcom begins sampling 3nm chip for 1.6T optical transceivers By Investing.comBroadcom Launches Taurus BCM83640 A 3nm 400G Per Lane ...Broadcom launches 400G/lane optical DSP for AI data centersBroadcom begins sampling 3nm chip for 1.6T optical transceiversThe 400G-Per-Lane Inflection Point: Where Copper and Optical Meet in AI Infrastructure - ASTERA LABS, INC.
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