Irvine, CABroadcom Corporation has introduced a 10 Gigabit Ethernet (10GbE) physical layer (PHY) device that exceeds the IEEE requirements for LANs and wide area networks (WANs). The company reports that the device provides the industry's lowest power solution.
The BCM8705 10GbE LAN/WAN PHY dissipates 1.1 W in WAN mode and 0.9 W in LAN mode. In WAN PHY mode, the BCM8705 takes 10GbE data from either a media access controller (MAC) or a switch via the XAUI interface, maps the Ethernet traffic onto an OC-192 frame and transmits the serial data over the XFI interface for connection on to a SONET backbone while still meeting the International Telecommunication Union (ITU) standard for SONET/SDH long-haul networks and the IEEE standard for 10GbE LAN networks.
Key features of the BCM8705 include:
- Service aware flow control support: In conjunction with Broadcom's Ethernet switch products, the BCM8705 supports SAFC so that customers can identify the priority of each 10GbE data packet for processing.
- Jumbo packet support in WAN mode for transferring large data files.
- A complete SONET/SDH performance monitoring block that includes a dedicated serial port to connect to an external controller (required for most ITU networks) so that it can process the status of the SONET/SDH overhead.
- On-chip built-in self test (BIST) generators and checkers along with a number of different loopback modes allow for independent diagnostics on the PHY.
- Staged device power up mode to minimize in-rush current upon power up or in hot plug applications.
- Pb-free 13 x 13 mm plastic BGA package
The BCM8705 10GbE LAN/WAN PHY is now sampling to early adopters and is
priced at $70 each in OEM quantities. Volume production is expected in the
second quarter of 2006. Click here for the data sheet.