Avago has announced a new low-noise, high-gain and high-linearity balanced amplifier module for use in tower mounted amplifiers, low-noise amplifier (LNA) modules and cellular base station applications.
The ALM-1522, which is the latest addition to the ALM-1x22 family of fully matched GaAs amplifiers, is suited to major 800/900 MHz cellular bands such as GSM, CDMA, UMTS and next generation long-term evolution (LTE) applications that operate in the 700 MHz band.
The amplifier offers a very low-noise figure, and provides high-linearity performance which helps to improve the sensitivity and dynamic range of cellular base station receivers. The noise and linearity performance offered by this balanced amplifier module is achieved through the use of Avago’s proprietary 0,25 μm GaAs Enhancement-mode pHEMT process. Housed in a 5 x 6 x 1 mm surface mount moulded chip on board package, the ALM-1522 allows designers to develop more compact base station products such as pico and femto base station receivers that do not require as much board space as typical discrete solutions.
The module features a low-noise figure of 0,6 dB, gain of 31 dB and operates from a 5 V power supply. It offers adjustable current for optimum NF or OIP3, as well as a shutdown function to conserve energy.
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