HMC548LP3E

The HMC548LP3 & HMC548LP3E are comprised of two internally matched SiGe HBT MMIC low noise amplifi er stages housed in 3x3 mm leadless SMT packages. The unique topology of the HMC548LP3 & HMC548LP3E provides interstage access allowing the designer to place a bandpass fi lter between the two amplifi er stages. This fi ltering approach enables the receiver to reject nearby blocking signals such as those emitted from cellular and 3G hand-helds, without incurring the noise fi gure degradation associated with a high rejection pre-fi lter. When combined with the appropriate interstage bandpass fi lter, this LNA can be used as a receiver pre-amplifi er in various applications from 1.2 to 3.0 GHz. Evaluation boards are available with or without a GPS L1 (1575 MHz) band pass fi lter.