STMicroelectronics introduces automotive-qualified GNSS module

October 25, 2021  - By
Photo: STMicroelectronics

Photo: STMicroelectronics

STMicroelectronics has introduced the Teseo-VIC3DA, the latest member of the Teseo module family, designed for vehicle positioning.

Teseo-VIC3DA combines ST’s high-performing Automotive Teseo III GNSS IC with the automotive 6-axis MEMS inertial measurement unit (IMU) and dead reckoning software to create a convenient, automotive-qualified navigation module. The module enables competitively priced in-car navigation, fleet-management, and insurance-monitoring applications.

The automotive Teseo III GNSS IC at the heart of the system is proven in high-end systems and is already highly regarded for its accuracy and efficiency. With multi-constellation awareness, Teseo III offers robust positioning capabilities by simultaneously receiving signals from GPS, Galileo, GLONASS, BeiDou and QZSS constellations.

The ST 6-axis automotive-grade MEMS IC introduces super-high-resolution motion tracking in advanced vehicle navigation and telematics applications.

With the combination of ST’s Teseo III, IMU and dead reckoning, the Teseo-VIC3DA ensures extremely accurate positioning performance in critical environments such as tunnels, beneath structures such as bridges or multi-level highways, in covered areas such as underground parking lots, and in urban canyons between tall buildings.

The Teseo-VIC3DA module operates from 3.3V, helping to simplify system integration, and has a standby mode that draws just 17 µA to minimize demand on the vehicle’s electrical supply. Containing a highly accurate integrated temperature compensated crystal oscillator, the module achieves excellent accuracy of 1.5 m circular error probability for typical automotive use cases. In addition, a dedicated real-time clock oscillator helps ensure fast time to first fix.

Coming with firmware pre-loaded onto built-in flash memory, the Teseo-VIC3DA can be updated with new firmware as necessary using the free Teseo-Suite software. Teseo-VIC3DA can provide up to 30Hz dead-reckoning fix-rate and has very low latency to reduce the UART-channel jitter. Teseo-VIC3DA can autonomously work with and without odometer information.

The Teseo-VIC3DA is tested and certified by ST according to the EU’s Radio Equipment Directive, applicable ETSI standards, and EN safety standards, helping customers achieve mandatory product-level approvals quickly and efficiently. A standalone, USB-powered evaluation platform, EVB-VIC3DA, is available to jump-start development.

The Teseo-VIC3DA is in production now and supplied in a 16 x 12.2 x 2.42 mm 24-pin LCC package.

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About the Author: Tracy Cozzens

Senior Editor Tracy Cozzens joined GPS World magazine in 2006. She also is editor of GPS World’s newsletters and the sister website Geospatial Solutions. She has worked in government, for non-profits, and in corporate communications, editing a variety of publications for audiences ranging from federal government contractors to teachers.