The requirement for reliable optical network connectivity with higher bandwidth, lower power, lower latency and lower cost necessitates the migration from the 400G/800G links with 100G/lane optics being used in AI clusters today to 800G/1.6T links with 200G/lane optics that Sian2 enables.
Broadcom’s Sian2 and Sian DSPs are optimised for 800G and 1.6T optical module platforms and double the bandwidth with lower power, lower latency and lower cost per bit to facilitate AI data center scale.
- Low power 5nm 200G/lane DSP solution enabling sub-28W 1.6T transceivers
- Supports 800G and 1.6T pluggable modules
- Support for both 212.5-Gb/s and 226.875-Gb/s data rates for InfiniBand and Ethernet applications
- Support for multiple FEC options including Bypass, Segmented and Concatenated FEC
- Built-in low-swing and high-swing laser driver for both SiP and EML based optical modules
- Sub-80ns roundtrip (Ingress + Egress) latency for AI/ML applications
- Crossbar support for ease of transceiver design
