SiGe Semiconductor Enables Wireless Multimedia with New RF Front-End Modules

(Product News, 25 Jan 2008)

SiGe Semiconductor Inc. has launched two radio frequency (RF) front-end modules featuring performance that will enable new wireless multimedia services in client access applications including game consoles, desktop and laptop computers, and home access points.

The SE2547A and SE2548A are complete 802.11a/b/g/n WLAN RF front-end modules providing all the functionality required between the transceiver and the antenna in dual-band Wi-Fi systems. The devices each include the necessary power amplifiers, filtering, power detector, diversity switch, diplexers and associated matching circuitry in a fully tested module that measures just 25mm²—about one-third of the size of previous front-end modules on the market. The high integration makes the new RF front-end modules ideal for portable and consumer applications including mini-cards for personal computing.

The new front-end modules can be used alone, or in stacked configurations to support multiple stream applications. The SE2548A is equipped with a single antenna port allowing it to be used in two-stream-by-two-antenna configuration. The SE2547A provides two antenna ports, allowing two-stream-by-three-antenna or two-stream-by-4-antenna configurations.

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