GNSS module tracks with sub-meter accuracy

STMicroelectronics has introduced its Teseo-LIV4F GNSS module that leverages the company’s Teseo IV single-die receiver technology, which includes L1 and L5 frequency-band support. It provides positioning accuracy better than one meter in embedded geolocation systems.

Delivering simultaneous multi-constellation and multi-band GNSS, the Teseo-LIV4F also extends multi-constellation compatibility to include navigation with Indian constellation (NavIC or IRNSS, the Indian Regional Navigation Satellite System).

Easing design with the single-die receiver technology, the low power consumption modules in an ultra-compact form factor come with Teseo-LIV4FSW firmware. This allows users to leverage the Teseo Suite PC-based application for free firmware configuration and updating, while the evaluation environment saves development time.

Teseo-LIV4F GNSS module (Source: STMicroelectronics)

The Teseo-LIV4F module can be used for a variety of position, navigation and timing (PNT) applications. These include insurance, goods tracking, tolling, anti-theft systems, people and pet location, vehicle tracking, emergency calls, fleet management, vehicle sharing, diagnostics and public transportation. It provides real-time assisted GNSS that allows prediction of satellite data based on previous observations.

The Teseo-LIV4F GNSS module with an on-board temperature-compensated crystal oscillator (TCXO) and dedicated real-time clock (RTC) oscillator offers fast time to first fix (TTFF). Key features include 49-mA GNSS L1 and L5 tracking current and 10-μA standby current for extended battery runtime and tracking sensitivity of -162 dBm to help maintain accuracy when signal strength is low.

The Teseo-LIV4F module is officially certified in accordance with CE, FCC and ICES regulations. The operating temperature range from -40°C to 85°C enables use in harsh environments such as outdoors and in factories.

In production, the Teseo-LIV4F GNSS module is available in a 9.7 × 10.1-mm LCC-18 pin package. It is covered by ST’s extended product-longevity assurance for industrial ICs.

Infineon also offers the Teseo-LIV4FM dual-band GNSS measurement engine module with the same size and pin-out of the Teseo-LIV4F. It provides precise positioning for applications such as micro mobility, agriculture and navigation with centimeter level accuracy using the MCU-host RTK/PPP algorithm. Engineering samples of Teseo-LIV4FM are available now with production scheduled for the end of 2023.