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Broadcom delivers industry's first 802.11g solution

Posted: 26 Nov 2002 ?? ?Print Version ?Bookmark and Share

Keywords:broadcom? 54g? 802.11b? 802.11g? bcm4306?

Broadcom Corp. has announced that it is shipping what is believed to be the industry's first WLAN implementation that enables 54Mbps communications compatible with 802.11b WiFi networks.

54g is the company's 54Mbps implementation of the draft specification for IEEE 802.11g wireless networks and is claimed to be 802.11b-compliant and is WiFi certifiable, It can provide laptops, handheld computers, and other devices with wireless connectivity at nearly five times the speed of existing technologies operating in the 2.4 GHz radio frequency range, while providing backwards compatibility to the base of more than 30 million installed WiFi (802.11b) devices.

The all CMOS solution consists of the company's BCM4306 baseband/MAC and the BCM2050 2.4GHz radio, and employs a direct conversion architecture to enable 54Mbps connectivity in the 2.4GHz band. Both are part of the company's AirForce family of WLAN products.

Along with these new ICs, the company's previously announced BCM4309 and BCM4702 will also support 54g devices.

"Broadcom customers are eager to integrate this next generation 54g technology into their products because it provides higher speed, better range and backwards compatibility at the lowest possible cost," said Jeff Thermond, VP of Broadcom's Home and Wireless Networking Business Unit.

The 802.11g draft standard specifies the same OFDM modulation technology and data rates found in IEEE 802.11a, but with transmission in the same 2.4GHz radio frequency band as the 802.11b standard. Broadcom claims that its 54g solution implements the latest draft of the specification and meets even the highest optional performance requirement specified.

The BCM4306 also includes a V.92 voice band modem and a glueless interface that connects to the company's family of Bluetooth and GPRS mobile communications products.

As with other products in the AirForce portfolio, the BCM4306 and the BCM2050 features SmartRadio technology that enables them of continuous calibration to tune the WLAN radio on the fly. SmartRadio solutions also employ wireless echo reduction, which uses sophisticated equalization techniques to improve delay spread tolerance in environments with complex surfaces, such as partitioned offices, airports and homes.

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