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Broadcom Corporation (Nasdaq: BRCM), a global leader in semiconductors for wired and wirelesscommunications, today announced a new Wi-Fi® Gigabit Ethernet (GbE)
processor that extends its Intensi-fi™ family of draft-802.11n solutions.
Although current generations of 802.11n products deliver 4 times the
throughput of 802.11g, performance is actually bottlenecked by the Fast
Ethernet switch and network processor. By integrating a GbE controller and
increasing the processor's clock speed, Broadcom's latest offering eliminates
those bottlenecks, allowing the system to achieve the theoretical maximum
wireless 802.11n performance, nearly 8 times that of 802.11g. The new
Broadcom® Wi-Fi GbE processor is available today in products from leading
OEMs, including Linksys and Buffalo.
In real world tests conducted by Broadcom and validated by a third-party
testing company, products powered by the new Broadcom BCM4705 GbE processor
produced industry leading Wi-Fi throughput in excess of 160 Megabits per
second (Mbps). In addition, highlighting the power of the Intensi-fi
architecture, these products have also demonstrated a consistent data
throughput of up to 200 Mbps and achieved over 250 Mbps in a simultaneous dual
band configuration in "clean air" laboratory tests.
"The performance of draft-802.11n wireless routers shouldn't be gated by
associated networking components that can keep these products from reaching
the performance targets of the forthcoming 802.11n standard," said Rahul
Patel, Director of Marketing for Broadcom's Wireless LAN business unit. "By
offering the industry's highest performing Wi-Fi network processor, Broadcom
is enabling manufacturers to deliver premium access points, routers and
residential gateways that deliver the full value of 802.11n networking."
Announced today is the BCM4705 network processor, the latest addition to
Broadcom's popular Intensi-fi family of IEEE draft-802.11n solutions that are
currently found in nearly 70 percent of draft-802.11n routers and client
devices(1). The new network processor provides a significant boost in
performance compared to other draft-802.11n processors, while maintaining
compliance with the current draft of the standard. Products based on the
BCM4705 will provide the bandwidth needed to wirelessly stream high definition
video content throughout a typical home and support the increasingly diverse
ecosystem of Wi-Fi products being adopted by consumers.
Product Information
The highly integrated BCM4705 processor combines a powerful 300 MHz/500
DMIPS MIPS32® core and Gigabit Ethernet controller to provide high-speed
routing and bridging capabilities. When implemented with Broadcom's
best-in-class Intensi-fi radio and media access controller/baseband chips, the
BCM4705 processor can substantially enhance the throughput of devices
connected to a Gigabit network -- providing greater than 160 Mb/s of TCP/IP
throughput for wireless clients while also offering Gigabit Ethernet speeds
for wired clients.
Broadcom's flexible draft-802.11n processor platform provides several
configuration and connectivity options that enable manufacturers to balance
performance and cost in developing router/gateway products. The dual-band
BCM4705 processor supports 2.4 and/or 5 GHz radios and accommodates 2X2, 3X3
and 4A-4 antenna configurations, enabling single band, dual band, or
simultaneous dual band Wi-Fi routers. The chip also integrates USB 2.0
host/device interfaces, enabling dynamic end products that allow end users to
add several application specific peripherals such as printers, network
attached storage, and digital cameras, to the Wi-Fi or wired network.
Like all of Broadcom's award-winning Wi-Fi solutions, the BCM4705
processor utilizes a highly integrated, all-CMOS architecture that enables
cost-effective, high volume manufacturing. In addition, the BCM4705 processor
supports Broadcom's proven OneDriver™ software, which not only provides a
consistent driver platform for manufacturers, but also delivers superior
performance, ease-of-use and security features. One such feature is
SecureEasySetup™ software, which enables users to configure their Wi-Fi
networks and activate WPA™ security with the push of a button. OneDriver
software also supports Wi-Fi Multimedia (WMM™), which provides important
quality of service (QoS) features by prioritizing audio, video and voice
traffic on a Wi-Fi network.
Broadcom's Wireless LAN Product Family
Broadcom's high performance AirForce™ wireless LAN product line
includes 54g® (the world's most popular Wi-Fi technology), and Intensi-fi
(the industry's leading draft-802.11n chipsets, www.80211n.com). In addition
to transceiver solutions that provide single and dual band wireless
connectivity, Broadcom integrates wireless network processors, communications
technologies and its OneDriver software solutions into reference designs that
speed customer time-to-market. The industry's leading manufacturers are
developing computers, routers, peripherals, phones, broadband modems and a
variety of consumer electronics devices connected by Broadcom technologies.
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