Avago ALM-1712 GPS 低噪音放大方案
ALM-1712: GPS Low-Noise Amplifier Front-end Module with Integrated Pre and Post Filters and Variable Current/Shutdown Function
Avago Technologies’ ALM-1712 is a GPS front-end module that combines a low-noise amplifier (LNA) with GPS FBAR filters. The LNA uses Avago Technologies’ proprietary GaAs Enhancement-mode pHEMT process to achieve high gain with very low noise figure and high linearity. Noise figure distribution is very tightly controlled. A CMOS-compatible shutdown pin is included either for turning the LNA on/off, or for current adjustment. The integrated filter utilizes an Avago Technologies’ leading-edge FBAR filter for exceptional rejection at Cell/PCS-Band frequencies.
The low noise figure and high gain, coupled with low current consumption make it suitable for use in critical low-power GPS applications or during low-battery situations.
ALM-1712主要特性:
Very Low Noise Figure : 1.65 dB typ..
