3. TECHNICAL BRIEF
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3.6.4 GPS LNA (U1003, ALM-2412)
Avago Technologies’ ALM-2412-SG1G is a LNA with integrated filter designed for GPS band applications at
1.575GHz. The LNA uses Avago Technologies’ proprietary GaAs Enhancement-mode pHEMT process to
achieve high gain operation with very low noise figures and high linearity. Noise figure distribution is very
tightly controlled. Gain and supply current are guaranteed parameters. A CMOS compatible shutdown pin is
included to turn the LNA off and provide a variable bias. The integrated filter utilizes an Avago Technologies’
leading-edge FBAR filter for exceptional rejection at Cell/PCS-Band frequencies.
The ALM-2412-SG1G is useable down to 1V operation. It achieves low noise figures and high gain even at 1V,
making it suitable for use in critical low-power GPS applications.
The module is housed in a cost effective, small and thin package (3.3x2.1x1.1mm3).
This part is MSL Class 3 and HBM ESD Level Class 1A.
3.6.5 FEM (FL1000, D5017)
Low-loss SAW frontend module for mobile telephone system
Covering GSM850, GSM900, GSM1800, GSM1900, WCDMA Triple bands
Integration of TX low pass filters, switches and decoder
Integration of GSM 850, EGSM, PCN and PCS RX SAWs
Balanced outputs of all RX ports
Integration of ESD protection at Ant port to 8kV, acc. IEC-61000-4-2 (contact discharge)
[Figure 1.10] D5017 Block Diagram & control logic