Photo: Telit
Telit has released the SE873K5 multi-constellation GNSS receiver in the L1 band. The SE873K5 simultaneously tracks and navigates all four GNSS constellations — GPS, Galileo, GLONASS and BeiDou — providing GNSS information over a UART, I2C or SPI interface serial port using the NMEA protocol.
Based on the AG3335 system-in-package from Airoha, the SE873K5 is the latest addition to Telit’s SE873 family of modules and the natural migration path from SE873 and SE873Q5.
The module is a 7mm x 7mm x 2.25mm QFN-like semiconductor package with embedded SPI flash, RTC and TCXO. With its compact size, the latest generation chipset and the advanced power modes, the SE873K5 has the benefits of low cost, small form factor and good electrical and thermal performance — suitable for wearables, fleet tracking, drones and more.
The SE873K5 low-power processing core delivers customizable power-saving modes. It optimizes current draw at module wake-up by supporting both local- and server-based assisted GNSS (A-GNSS) for improved time to first fix, while satellite-based augmentation system (SBAS) corrections from WAAS, EGNOS, MSAS or GAGAN increase positioning accuracy.
The internal flash memory allows firmware updates and customization, as well as ephemeris predictions storage.
Features of the SE873K5 include:
- Frequency bands: GPS L1, GLONASS L1, Galileo E1, BeiDou B1, QZSS L1
- Standards: NMEA
- SBAS (EGNOS, WAAS, GAGAN and MSAS) or QZSS L1S capability
- Real-time clock for efficient power management
- Low-power modes
- Jammer rejection
- Local and server-based A-GPS/A-GNSS
- RoHS compliant
- RED/UKCA certification
