Universal GNSS receiver

18 April 2012 Telecoms, Datacoms, Wireless, IoT

Maxim’s new MAX2769B and MAX2670 are specifically designed to address global navigation satellite system (GNSS) applications. The flexible receiver solutions are capable of operating over the navigation standards GPS, GLONASS, Galileo and Compass, and have completed PPAP and AEC-Q100 approval.

The MAX2670 is a dual-stage low noise amplifier typically located in or close to the antenna module, while the MAX2769B resides within the dashboard as the receiver. The latter boasts a noise figure of only 1,4 dB, a critical element that dominates the overall receiver sensitivity and enables faster satellite locking.

The MAX2670 is a highly versatile design that allows external filtering between first and second stage, providing flexibility for system optimisation. Its high integration eliminates large, expensive, discrete transistor solutions. Combining these two parts delivers a highly flexible and robust system solution for navigation applications.

The MAX2769B and MAX2670 are designed on Maxim’s advanced, low-power SiGe BiCMOS process technology which is compatible with virtually all GNSS baseband hardware and GNSS software-based receiver designs.

The MAX2769B completely eliminates the need for external IF filters by implementing on-chip monolithic filters and requires very few external components to implement a low-cost GNSS RF receiver solution. In addition, its integrated ADC, which is programmable from 1 to 3 bits, makes it highly configurable.

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