Avago Technologies has released a highly integrated GPS low noise amplifier (LNA) with high performance levels. The ALM-1712 effectively integrates a sophisticated GPS LNA and two FBAR filters. This results in a complete, compact and high-performance GPS RF front end module that simplifies the design of a wide range of GPS applications.
By integrating a GPS LNA with pre and post high-rejection FBAR (film bulk acoustic resonator) filters, the device simplifies and shortens the RF design process, reduces component count and provides excellent RF performance levels that are critical in the use of GPS applications.
The module is housed in a 4,5 x 2,2 x 1,0 mm MCOB package, reducing PCB space by more 50% when compared to certain discreet solutions. The integration of FBAR filtering enables the ALM-1712 to attain more than 85 dBc of cell/PCS-band rejection levels. It leverages Avago’s 0,5 μm GaAs enhancement-mode pHEMT process to deliver a 1,7 dB noise figure, 13,5 dB gain, and +5 dBm IIP3 (input third order intercept point) at typical operating condition of 2,7 V and 8 mA. At low voltages down to 1,8 V, the module can still achieve a low noise figure and high linearity, making it suitable for use in low-power GPS applications.
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