Monday, December 18, 2006

Broadcom Announces DSP-Based 10 Gigabit Ethernet Serial Transceiver

Broadcom announced a new 10 Gigabit Ethernet (10GbE) physical layer (PHY) device that leverages DSPs -- an industry first. The company said its unique high-speed DSP provides significant performance, manufacturing and reliability advantages over competing analog solutions. The new 10GbE DSP PHY exceeds the requirements of the new standard, which was developed to provide a low cost 10x speed upgrade for existing Gigabit Ethernet (GbE) links in multi-mode fiber (MMF) applications.

Currently, more complex and higher cost 10GBASE-LX4 optical modules are being used in this market. Additionally, as density of 10GbE line cards increase from 8 to 16 channels today to as many as 48 channels on next generation designs, new smaller form factors and lower cost 10 Gigabit modules (such as SFP+) will be required.

The new Broadcom BCM8706 10GbE (SFP+ to XAUI) transceiver that builds on five generations of the company's 10GbE serial PHY technology, and will be used in SFP+ line card applications and inside X2 optical modules. The DSP equalizer provides optimal performance over 300 meters of multi-mode fiber that exceeds the IEEE specified link distance of 220 meters. An on-chip micro-controller provides additional flexibility to maintain optimal performance in even the most challenging operating conditions.

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