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News 2004/12/14

UBEC Launches UW2452, High Performance Multi-Mode & Full-Band 802.11a/g WLAN Transceiver

 

UW2452, The Smallest and Most Integrated 802.11a/g Transceiver in the World

HSINCHU, Taiwan and MILPITAS, Calif., Dec. 14 -- UBEC (Uniband Electronic Corp.), a leading fabless semiconductor company specializing in WLAN RF transceivers, ZigBee(TM)-ready (802.15.4-compliant IC) single chip, WLAN/Bluetooth Power Amplifiers and Broadband Amplifiers for satellite receiver, announced delivering UW2452, an highly integrated 802.11a/g WLAN transceiver to customers. 

UW2452 is the first 802.11a/g transceiver from Asia supporting full-band operation from 2.4 to 2.5 GHz (11g) and 4.9 to 5.9 GHz (11a/HypreLAN) including the recently IEEE rectified channel frequencies used in Japan(802.11j). UW2452 features an advanced transceiver architecture and innovative frequency planning to ensure the best performance and the lowest cost. It integrates a dual band RF front end, triple VCOs, Sigma-Delta PLL, VGA, RSSI, RX channel filters and advanced calibration circuits such as VCO calibration. UW2452 further improves from UW2451 (11g transceiver) the RX DC cancellation gain settling time based on an approved patented design. While the UW2452 transmitter achieves -30 dB EVM at -6 dBm transmit power for the 4.9~5.9 GHz band and -3 dBm for the 2.4~2.5 GHz band with OFDM signaling and has a 32 dB TX gain control range, its receiver realizes a 4 dB noise figure for the 4.9~5.9 GHz band and 3 dB for the 2.4~2.5 GHz band and handles a maximum OFDM input signal more than 0 dBm.

UW2452 is housed in a 48 pin 7x7 mm2 QFN package, the smallest form factor for 11a/g transceivers in the world and uses the same RF to baseband interface as UW2451 does, such that UBEC's 11g customers can easily migrate to complete 11a/g system design from existing 11g design.

About UBEC

Founded in July 2002, Uniband Electronic Corp (UBEC) is headquartered in Hsinchu, Taiwan with US office in Silicon Valley, U.S.A. UBEC is dedicated to offer a wide range of wireless products such as 802.11g and 802.11a/g compliant transceivers and PAs, 802.15.4 single chip, LNB gain blocks for satellite and STB application. UBEC places a high priority on customer relationship and support. UBEC provides not only ICs, but also full reference designs and technical services essential in making our customers' success on the wireless market. For more information about UBEC, please visit http://www.ubec.com.tw

 

 

UBEC推出802.11a/g全頻雙模無線區域網路(WLAN)射頻晶片

 

UW2452為目前全世界最小,集成度最高的全頻雙模射頻晶片

UBEC近日宣布推出目前亞洲第一顆802.11a /g (2.4~2.5 GHz for 11g以及4.9~5.9 GHz for 802.11a and HypreLAN)全頻射頻晶片,可以應用於近日IEEE修改通過的WiFi日本頻段(802.11j)UBEC以最先進的系統以及分頻設計,生產出最佳性能以及最低成本的UW2452UW2452 整合了雙模RF front end, 三顆VCO, Sigma- Delta鎖相迴路, VGA, RSSI, RX 低通濾波器,以及VCO校正等先進電路。UW2452的專利設計更進一步改良其802.11g射頻晶片UW2451RX DC cancellation 改變增益所需的穩定時間。UW2452TX4.9~5.9 GHz頻段可以達到的輸出功率-6 dBm (EVM -30 dB),2.4~2.5 GHz頻段OFDM模式下可達-3 dBm,可調變的增益範圍達到32 dB, 另外UW2452RX4.9~5.9 GHz的雜訊係數只有4 dB,2.4~2.5GHz更只有3 dB,OFDM模式下可接收大於0 dBm的輸入訊號。 

UW2452的封裝為48pin 7x 7 mm2 QFN,是目前全世界最小的11a/g 射頻晶片,RFB/B相通的介面與UW2451一樣,如此使用UBEC 802.11g 射頻晶片的客戶即可直接導入UW2452的設計。若您想得知更多UBEC相關的產品訊息,請參考UBEC 網站http://www.ubec.com.tw

 

 

 
     

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