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STMicroelectronics™ introduces a linear power amplifier for use in wireless LAN applications meeting the IEEE802.11b/g standards. It is designed for use in notebooks, PCs, PDAs, and other mobile products. The STB7720L is a three-stage linear power amplifier optimized for the 2.4 GHz ISM band used by WLAN applications. It includes a bias network to improve linearity, power-down and quiescent current regulation. This enables the part to achieve 32 dB of power gain and 19 dBm of linear output power, with an error vector magnitude of 2% under 802.11g modulation at 54 Mbit/s. The part includes a linear analog control for DC current and output management and an average channel power detector. This has 20 dB dynamic range and provides a buffered DC voltage proportional to the average channel output power. It is insensitive to supply voltage temperature and load mismatch.

STMicroelectronics

STMicroelectronics
http://www.st.com