San Jose, Calif. Avago Technologies has introduced its next-generation, high-gain GPS low noise amplifier (LNA) with integrated filter. Touted as the industry's first high-gain GPS LNA with an integrated high rejection FBAR filter, the ALM-1612 LNA/filter module is designed for the 1.575-GHz frequency band, targeting GPS handset, recreational, in-vehicle navigation and antenna markets.
Under typical operating conditions of 2.7 V and 6 mA, the ALM-1612 LNA/filter module is said to deliver exceptional performance levels, including a 0.9 dB noise figure, 18 dB gain, +2 dBm input third order intercept point and more than 65 dBc of cell/PCS-band rejection.
Packaged in a 3.3 x 2.1 x 1.0-mm miniature MCOB package, the ALM-1612 is integrated with Avago's FBAR filter for superior rejection at cell/PCS band frequencies, which is particularly critical for simultaneous GPS operation in handsets and other mobile applications, said Avago. The ALM-1612 provides a CMOS-compatible shutdown pin to turn the LNA on/off or to adjust the variable current.
A built-in shunt indicator at the RF input pin of the LNA enhances its electrostatic discharge (ESD) protection. Leveraging the company's 0.25-micron enhancement-mode pHEMT fabrication technology, the LNA/filter module can also operate at low voltages of 1.8 V and still achieve very low noise figures and high gain, making it suitable for use in low-power GPS applications such as handsets and portable GPS navigation devices.
Avago Technologies , www.avagotech.com