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RF/Microwave??

Universal GPS, Galileo RFIC comes in tested die

Posted: 04 Dec 2007 ?? ?Print Version ?Bookmark and Share

Keywords:GPS? Galileo? universal RFIC? tested die?

Maxim Integrated Products has introduced the MAX2769E/W, claimed to be the industry's first universal GNSS receiver for GPS (L1 C/A code and P-code), WAAS, Egnos, Galileo and Glonass navigation satellite systems in a single tested die.

As GPS baseband technology becomes more integrated into the host processor with lower geometry CMOS processes, the need for a high-performance external GPS RFIC becomes more essential. Fulfilling this need, the MAX2769E/W provides a cascaded noise figure of 1.4dB and is designed for die-level integration into a single package. Consequently, this receiver is suitable for a wide range of consumer applications, including automotive navigation, asset tracking, cellular handsets, portable navigation devices, digital cameras, laptops and ultramobile PCs.

Designed on Maxim's low-power SiGe BiCMOS process technology, the MAX2769E/W promises the industry's highest performance and integration at a low cost. Incorporated on the chip is a complete receiver chain, including a dual-input LNA and mixer, followed by an image-rejected filter, VGA, VCO, fractional-N frequency synthesizer, crystal oscillator and a multibit ADC.

Through this high level of integration, the MAX2769E/W eliminates the need for external IF SAW filters, as well as an external LNA in passive antenna applications. Consequently, it requires only a few external components to form a complete, low-cost GPS receiver solution.

The MAX2769E/W is the most flexible receiver on the market. The integrated delta-sigma fractional-N frequency synthesizer allows IF programming with 40Hz accuracy while operating with any reference or crystal frequency available in the host system. The on-chip ADC outputs one or two quantized bits for both I and Q channels, or three quantized bits for the I channel. Output data is available either at CMOS or limited-differential logic levels. The MAX2769E/W is designed to work with virtually all GPS baseband processors on the market.

Fully specified for operation over the -40C to 85C extended temperature range, the MAX2769E/W is available in a single tested-die, wafer-level (by request only) and 28-pin TQFN packages. Prices start at $2.95 for 1,000-up, FOB USA.




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