Low-noise amplifier has variable-current functions
Avago Technologies
MGA-231T6 low-noise amplifier
Avago has announced a high-gain, low-noise amplifier (LNA) with variable-current and shutdown functions for use in GPS, unlicensed industrial, scientific and medical bands, and Wimax applications.
Avago's compact MGA-231T6 offers a low-noise figure combined with high linearity to help improve the sensitivity of GPS receivers.
This LNA targets designers of mobile handsets with GPS functions, recreational and navigation GPS receivers, and antennas.
Housed in a 2.0 x 1.3 x 0.4mm package, Avago's MGA-231T6 requires only four to five external matching components to help reduce the amount of printed-circuit-board space and the number of components needed in the design.
The MGA-231T6 LNA uses Avago's Gaas Enhancement-mode PHEMT process to achieve high gain with a low noise figure.
The noise-figure distribution is tightly controlled and a CMOS-compatible shutdown pin is included for turning the LNA on or off or for current adjustment.
The low-noise figure and high gain, coupled with low current consumption, make the MGA-231T6 suitable for use in critical low-power GPS applications or during low-battery situations.
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