News | December 13, 2004

UBEC Launches Multi-Mode And Full-Band 802.11a/g WLAN Transceiver

Hsinchu, Taiwan -- UBEC (Uniband Electronic Corp.) announced the mass production of UW2452, an integrated 802.11a/g WLAN transceiver.

UW2452 is the first 802.11a/g transceiver from Asia supporting full-band operation from 2.4 to 2.5 GHz (802.11g) and 4.9 to 5.9 GHz (802.11a/HypreLAN), including the recently approved IEEE 802.11j for channel frequencies used in Japan (see related story). UW2452 features an advanced transceiver architecture and frequency planning to ensure the performance and low 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 the UW2451 802.11g transceiver (see related story) 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 7 x 7 mm QFN package and uses the same RF to baseband interface as the UW2451, such that UBEC's 802.11g customers can easily migrate to complete 11a/g system design from existing 802.11g designs.

UBEC is a fabless semiconductor company specializing in WLAN RF transceivers, ZigBee-ready (802.15.4-compliant IC) single chip, WLAN/Bluetooth power amplifiers, and broadband amplifiers for satellite receivers.

Source: UBEC