Low-Cost Amplifier Drives Small Stations

July 25, 2012
Small and efficient base stations are needed as wireless service providers hope to extend their coverage, and the low-cost model RFPA2089 power amplifier from RFMD is an ideal driver stage for these systems.

Small and efficient base stations are needed as wireless service providers hope to extend their coverage, and the low-cost model RFPA2089 power amplifier from RFMD is an ideal driver stage for these systems. It is a single-stage indium-gallium-phosphide (InGaP) amplifier housed in a SOT-89 package with frequency range of 50 to 2700 MHz. It provides 17.6 dB gain with 3.9 dB noise figure while consuming only 138 mA at +5 VDC.

The amplifier delivers +24 dBm (0.25 W) typical output power at 1-dB compression with an output third-order-intercept point of +38.5 dBm. Suitable for driving base-station transceivers and for use as an intermediate-frequency (IF) amplifier, it can handle input-power levels to +11 dBm and operating temperatures from -40 to +85°C. It is meant for linear operation, with -60 dBc adjacent-channel power ratio (ACPR) at +13 dBm WCDMA channel power. Prices start at only $1.84 each for 750 pieces.

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.

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