ST releases ROM-based GNSS module to provide complete services for the navigation market

STMicroelectronics has expanded its GNSS product family with the Teseo-LIV3R, a competitively priced ROM-based positioning module that brings ST’s complete GNSS algorithm capabilities to cost-sensitive tracking and navigation devices.

ST's new GNSS module features odometer and geo-fencing capabilities. The odometer includes three short-distance counters and driving distance notifications; the geo-fencing includes up to eight configurable fences and cross-fence entry and exit notifications. The new product supports server access to free real-time assisted GNSS technology, ensuring that high-reliability navigation applications will not experience positioning data interruptions.

By simultaneously tracking the four major navigation satellite systems, GPS, Glonass, BeiDou and QZSS, and combining the Satellite-Based Augmentation System (S-BAS) and RTCM[1] V3.1 differential positioning system, the new module ensures that the positioning accuracy of navigation devices is within 1.5 meters (50% CEP[2]), which is an excellent result. The tracking sensitivity is -163dBm and the first fix time is less than 1 second, ensuring high performance for demanding navigation applications. The new module is easy to integrate and supports NMEA[3] proprietary commands.

Teseo-LIV3R is the best choice for battery-sensitive applications. It can optimize power consumption according to positioning accuracy, average current and positioning frequency. The standby mode power consumption is less than 15µA when RTC backup is turned on, and it supports multiple low-power modes. Low-power modes include adaptive and energy-saving periodic continuous positioning, intermittent positioning with GPS only, and on-demand positioning when the device is in permanent standby state.

To simplify and speed up new product development, the module is FCC certified and supports the STM32 open development environment. The STM32 ecosystem has advanced geolocation, intelligent tracking, and server-assisted GNSS application software. In terms of hardware, the EVB-LIV3x evaluation board and X-NUCLEO-GNSS1A1 expansion board allow developers to seize the initiative and be one step ahead. The Teseo Suite PC tool helps developers easily configure and debug performance. Developers can also join the ST GNSS community to share information and increase their understanding of the field.

The Teseo-LIV3R module is now in volume production.