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Avago Technologies extends high-gain GPS LNA family with variable current and shutdown functions

Avago Technologies has unveiled the latest edition to its family of low noise amplifiers (LNAs) with a new high-gain LNA with variable current and shutdown functions for use in GPS, unlicensed Industrial, Scientific, and Medical (ISM) 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. 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.

The LNA targets designers of mobile handsets with GPS functions, recreational and navigation GPS receivers, and antennas.

Housed in a compact 2.0 mm by 1.3 mm by 0.4 mm package, Avago's MGA-231T6 requires 4 to 5 external matching components to help reduce the amount of printed circuit board space and the number of components needed in the design. As a result, designers will be able to develop next-generation GPS applications that are more compact with more features and functions to satisfy the growing needs of consumers. The MGA-231T6 LNA uses Avago's proprietary GaAs Enhancement-mode pHEMT process to achieve high gain with a low noise figure. In addition, the noise figure distribution is tightly controlled, and a CMOS-compatible shutdown pin which is included for turning the LNA on or off or for current adjustment.

Features

  • Low noise figure: 1.0 dB typical
  • High gain: 17.1 dB typical
  • High IIP3 and IP1dB
  • Low external component count

  • Low shutdown current: < 0.4 uA
  • CMOS compatible shutdown pin
  • Usable down to 1.8 V supply
  • Adjustable current via single external resistor/voltage

  • Pb-Free and RoHS compliant

Availability and Pricing

Avago's MGA-231T6 GPS high-gain LNA with variable current and shutdown features is priced at $.55 each in 1000 piece quantities. Samples and production quantities are available now through Avago's direct sales channel and worldwide distribution partners.

Datasheets:

MGA-231T6

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