GK9501

The GOKE GK9501 is a versatile multi-mode and multi-frequency satellite positioning chip designed for high-precision navigation and timing applications. It supports a wide array of satellite constellations including Beidou, GPS, GLONASS, GALILEO, IRNSS, QZSS, and SBAS, enabling both multi-system joint positioning and single-system independent positioning.

With 144 channels, the GK9501 maximizes satellite visibility to enhance positioning and timing accuracy and stability. It features dual-frequency joint positioning support (L1+L2 or L1+L5) with anti-interference capabilities, along with D-GNSS, A-GNSS, and DR integrated navigation applications. The chip provides a PPS output with accuracy less than 5ns and includes built-in anti-spoofing algorithms and Receiver Autonomous Integrity Monitoring (RAIM) technology for enhanced system security and reliability.

Key performance metrics include a horizontal positioning accuracy of 0.8m, altitude positioning accuracy of 1.5m, and a real-time RTK positioning accuracy of 2cm. Speed accuracy is 0.1 m/s, and timing accuracy is 5 ns. The device is housed in an LGA package measuring 5.0 mm x 5.0 mm with a 0.4mm pitch, featuring 40 pins.

Main applications for the GK9501 include high-precision positioning, navigation, and aided driving systems, as well as high-precision timing for the electric power industry and base stations. It is also suitable for safety monitoring, measurement and mapping, precision agriculture, and equipment requiring navigation, positioning, or timing, such as unmanned aerial vehicles (drones).