The MAX2741 L1-band GPS receiver IC offers a high-performance, compact solution for mobile handsets and PDA applications. Total voltage gain of 80dB and a 4.7dB cascaded noise figure can provide receiver sensitivity for applications requiring -185dBW for indoor tracking solutions. This dual-conversion receiver downconverts the 1575.42MHz GPS signal to a 37.38MHz first IF, and then a 3.78MHz second IF. An integrated 2- or 3-bit ADC (1-bit SIGN, 1- or 2-bit MAG selectable) samples the second IF and outputs the digitized signals to the baseband processor. The integrated synthesizer offers the flexibility in frequency planning to allow a single board design to be employed for reference frequencies from 2MHz to 26MHz. The integrated reference oscillator allows either TCXO or crystal operation. The receiver runs from a 2.7V to 3.0V supply, and draws only 30mA when active. It is offered in a 28-pin thin QFN package, and is specified for -40°C to +85°C at 3V. Applications * Consumer Electronics (Location-Based Games) * Digital Cameras/Camcorders * Emergency Response Systems * Emergency Road-Side Assistance * Geographical Information Systems (GIS) * In-Vehicle Navigation Systems (IVNS) * Location-Based Services/Internet (PDAs) * Precision Timing * Recreational Handhelds/Walkie-Talkies * Telematics (Vehicle and Asset Tracking, Inventory Management) * Supports All Popular Handset Reference Frequencies Up to 26MHz * 4.7dB Cascaded Noise Figure * 80dB Cascaded Gain * Tolerates -90dBm In-Band Jammer * Tolerates +13dBm CDMA Out-of-Band Jammer at Device Input * Integrated Synthesizer and VCO * Integrated 2- or 3-Bit ADC * 50dB IF AGC Range * Small 28-Pin Thin QFN Package * SPI™ Control Interface * Clock Output for Baseband Processor