Broadcom Introduces World’s First Dual Frequency GNSS Receiver

Broadcom has released the first mass-market, dual frequency GNSS receiver device, the BCM47755, designed to enhance location based services (LBS) applications for mobile phones, tablets and fitness wearables. Equipped with the latest GNSS innovations, the device is capable of centimeter accuracy with minimal power consumption and footprint, enabling an entirely new suite of high-precision LBS applications including lane-level vehicle navigation and mobile augmented reality (AR).

Until now, mobile location based applications have been powered by single frequency GNSS receivers operating under stringent battery power and footprint constraints. The expanded availability of L1/E1 and L5/E5 frequencies in satellite constellations enables the use of two frequencies to compute position much more accurately in both urban and open area environments. The BCM47755 delivers this higher level of location accuracy while meeting the rigorous battery power and footprint needs in mobile phones.

The BCM47755's accuracy allows location-based applications to offer a richer consumer experience. For example, lane-level knowledge of the vehicle's location vastly improves the turn-by-turn navigation performance. Further, combining this accurate location with the lane’s traffic pattern gives consumers a significantly better estimate of arrival times. In the same vein, ride hailing applications can be enhanced to more precisely pinpoint driver and client location.

The BCM47755 consumes less than half the power of previous generation GNSS chips. Since GNSS and sensor applications are always on, this power efficiency has a proportional impact on the battery life of the mobile device. So, even while benefiting from a richer navigation experience, consumers will have a longer lasting battery on mobile devices that use the BCM47755.

Product Highlights

  • Advanced dual frequency GNSS receiver capable of processing satellite signals in both L1/E1 and L5/E5 frequency bands providing higher level of location accuracy
  • Incorporates new low power GNSS radio and dual-core ARM CM4-CM0 sensor hub
  • More than 50% lower power consumption compared to previous generation GNSS receiver
  • Delivers high quality raw GNSS measurements for both code and carrier phase enabling advanced location-based applications

Broadcom is currently sampling the BCM47755 dual frequency GNSS receiver to its early access partners and customers. Further information on Broadcom’s BCM47755 product is available here.


  • Country: United States
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