MAX2641-based GPS receiver LNA circuit

Published:2012/8/25 1:14:00 Author:Ecco | Keyword: GPS receiver, LNA | From:SeekIC

The MAX2641 is alow-price, ultra - low noise LNA whichcan be used in cellular phones, PCS, GPS, and 2.4GHz ISM band.With single-ended power supply, thevoltage is +2.7 V to +5.5 V , the current consumption is 3.5mA. MAX2641's frequency rangeis 1400MHz ~ 2500MHz, typical gainis 15.7dB, the input IP3is 4dBm, noise figureis 1.2dB at 1575MHz. MAX2641 usesinternal bias circuit without external bias resistors and chokes. It requires the input matching network withonly two components,input / output blocking capacitor and VCC bypass capacitor. It is available in SOT23-6 package.



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