Broadcom Premiers BCM8022 10-Gigabit Ethernet to 10GBASE-CX4 Retimer

4/30/2003 - Broadcom Corporation (Nasdaq: BRCM), the leading provider of silicon solutions enabling broadband communications, announced the Broadcom® BCM8022 10-Gigabit Ethernet to 10GBASE-CX4 Retimer – a cost-efficient solution that enables 10-Gigabit Ethernet (GbE) data transmissions over short distances for such applications as aggregating and stacking of network switches and routers.

The rapid growth in adoption of Gigabit Ethernet links to the desktop, mobile PC, and throughout the network infrastructure has created the need for data aggregation over affordable and reliable high-bandwidth channels within data centers and wiring closets. In the past, these large data transfers required the use of expensive optical components primarily designed for longer distance applications. The new BCM8022 allows system developers to build 10-GbE links over low-cost, standard copper medium to support distances up to 15 meters (utilizing Infiniband 4X Cable) for box-to-box or rack-to-rack type interconnects. The BCM8022 aggregates network infrastructure components to create a high bandwidth, low-cost link over short distances and is able to clean up the signal prior to transferring data.

According to the January 2003 Worldwide Ethernet Switch Market 5-Year Forecast published by Dell'Oro Group (a California-based market research firm that specializes in strategic competitive analysis in the networking and telecommunications industries), modular and fixed Gigabit Ethernet switch port shipments are expected to grow nearly 400% over the next three years.

“Broadcom not only provides the industry’s leading Gigabit PHY products that are used on the majority of Ethernet port shipments today, but now the BCM8022 can yield as high as a 10x improvement in cost savings using standard copper medium versus optical components,” said Robert A. Rango, Vice President and General Manager of Broadcom’s Network Infrastructure Business Unit. “For the aggregation and clustering of multi-shelf chassis networking systems, the BCM8022 allows our customers to build systems to connect everything together, under budget.”

“We clearly see a need for high bandwidth 10-Gigabit channels in applications requiring distances less than 15 meters, however the current price of existing optical based products make it cost-prohibitive to implement these solutions,” said Dan Dove, Principal Engineer, HP ProCurve Networking Business. “Forward-thinking companies, like Broadcom, understand that as Gigabit to the desktop volume expands, the need for standardized low-cost aggregation links becomes imperative.”

The BCM8022 was developed in accordance with the new IEEE 802.3ak (draft) standard, called 10GBASE-CX4, which is being developed to meet the demand for very low-cost 10-Gigabit per second (Gbps) links that interconnect switches as customers move to 1000BASE-T attached desktops. The new single-chip supports 10-Gigabit Ethernet Attachment Unit Interfaces (XAUI) to 10GBASE-CX4, as well as standard XAUI to XAUI retiming for transport or backplane applications. The device has two complete IEEE 802.3ae 10-Gigabit Ethernet Physical Coding Sublayers (PCS) with selectable 8B/10B encoding/decoding along with advanced signal conditioning blocks on-chip.

Technical Information
The BCM8022 integrates four retimer channels leveraging Broadcom’s third generation of high-speed SerDes (serializer/deserializer) cores available in high production volumes today and utilizes low-power, 0.13-micron CMOS process technology. The high-speed serial I/O of the BCM8022 supports transmission rates ranging from 1-Gbps to 3.2-Gbps. An on-chip phase lock loop (PLL) synthesizes the supplied reference clock to support the desired transmit rate, while clock and data recovery (CDR) units recover the receive rate clock for timing.

For high-speed serial connections, the BCM8022 incorporates Tx pre-emphasis on the transmit channels and Rx equalization on the receive channels. Transmit pre-emphasis is programmable to improve the overall cable reach and compensate for electrical imperfections associated with traces and connectors. Rx equalization provides optimal performance over a variety of receive interfaces.

In order to complement existing 10-Gigabit Ethernet designs, Broadcom offers a complete BCM8022-based evaluation board in the XENPAK form factor for customer evaluation and design.

The BCM8022 is sampling today with production quantities expected in Q3 of 2003. Broadcom also offers a complete evaluation kit including reference designs, evaluation boards, GUI-based software and documentation.

About Broadcom
Broadcom Corporation is the leading provider of highly integrated silicon solutions that enable broadband communications and networking of voice, video and data services. Using proprietary technologies and advanced design methodologies, Broadcom designs, develops and supplies complete system-on-a-chip solutions and related hardware and software applications for every major broadband communications market. Our diverse product portfolio includes solutions for digital cable and satellite set-top boxes; cable and DSL modems and residential gateways; high-speed transmission and switching for local, metropolitan, wide area and storage networking; home and wireless networking; cellular and terrestrial wireless communications; Voice over Internet Protocol (VoIP) gateway and telephony systems; broadband network processors; and SystemI/OTM server solutions. These technologies and products support our core mission: Connecting everything®.

Broadcom is headquartered in Irvine, Calif., and may be contacted at 1-949-450-8700 or at

Broadcom®, the pulse logo, Connecting everything®, and SystemI/OTM are trademarks of Broadcom Corporation and/or its affiliates in the United States and certain other countries.

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