Multiband Satellite Receiver Suits Industrial, Consumer Apps

March 5, 2019 Rich Nass

For me at least, GPS, or whatever system is used in your country of choice, is something I rarely think about. It just works. And that’s probably not fair, because there is a lot of work that goes on in the background to make the technology so seamless.

To that end, Maxim recently developed its MAX2769C, a Global Navigation Satellite System (GNSS) receiver that covers L1/E1, B1, G1 bands for GPS, Galileo, BeiDou, and GLONASS satellite systems. Putting all that in one 5 X 5-mm, 28-pin thin QFN package is quite a feat. It’s aimed at both industrial and consumer applications, including mobile handsets.

Designed using the company’s low-power SiGe BiCMOS process technology, the part offers high performance and integration at a low cost. The chip incorporates the complete receiver chain, including a dual-input LNA and mixer, an image-rejection filter, programmable gain amplifier, and a multibit ADC. The total cascaded noise figure can be as low as 1.4 dB. Other features include an integrated VCO, a crystal oscillator, and a fractional-N frequency synthesizer to program the LO frequency using different reference frequencies. The integrated delta-sigma fractional-N frequency synthesizer allows programming of the IF frequency within ±30 Hz while operating with any reference or crystal frequencies available in the host system.

About the Author

Rich Nass

Richard Nass is the Executive Vice-President of OpenSystems Media. His key responsibilities include setting the direction for all aspects of OpenSystems Media’s Embedded and IoT product portfolios, including web sites, e-newsletters, print and digital magazines, and various other digital and print activities. He was instrumental in developing the company's on-line educational portal, Embedded University. Previously, Nass was the Brand Director for UBM’s award-winning Design News property. Prior to that, he led the content team for UBM Canon’s Medical Devices Group, as well all custom properties and events in the U.S., Europe, and Asia. Nass has been in the engineering OEM industry for more than 25 years. In prior stints, he led the Content Team at EE Times, handling the Embedded and Custom groups and the TechOnline DesignLine network of design engineering web sites. Nass holds a BSEE degree from the New Jersey Institute of Technology.

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