News

ST semiconductor single piece three-frequency satellite navigation receiver to improve car positioning accuracy

  • Author:ROGER
  • Release on:2021-12-06

The global semiconductor leader in multi-electronic applications is a global semiconductor (StMicroelectronics, referred to as ST;) launched a world's first car satellite navigation chip that provides high quality position data for the automotive advanced driving system.

As a new member of the Tseo V product family, STA8135GA is the world's first on-chip integrated triple-frequency position measurement engine GNSS (Global Navigation Satellite System) Receive Chip, which also integrates standard multi-frequency positions - speed - time (PVT) and a navigation estimate.

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Tri-band position measurement has always been used to require millimeter positioning accuracy and substantially free of calibration data, for example, measure mapping instruments and fine agricultural equipment. Previously, the three-frequency solution sold on the market had only chipset or modules, compared to ST's single-chip solution, high size and high price. In the technique of simultaneously capturing and tracking multiple navigation constellation satellites, the number of satellites captured and tracked and tracked can enable excellent positioning performance in harsh environments, for example, maintain positioning under urban canyon and trees. Accuracy.

Through the size of the size, the integrated package introduces the three-frequency receiver into the automobile market, STA8135GA helps the driving assistance system accurate judgment on the front road situation. The multi-constellation receiver is responsible for providing original location information for the main control system, while the main controller runs a precision positioning algorithm, for example, PPP / RTK (precise point positioning / real-time motion). In addition, STA8135GA can also enhance other applications, including car navigation systems, remote information processing devices, smart antennas, and V2X communication systems, ship navigation systems, drones and other vehicles.

LUCA CELANT, General Manager of Semiconductor Automotive and Discrete Devices Products, AAA (ADAS, ASIC AND AUDIO) Division: "STA8135GA satellite receiver has high measurement accuracy and single-chip integration, so that developers can design reliably, Economic navigation system makes the car safer, the environment is more knowledgeable. Our unique internal design resources and large-scale manufacturing technology are one of the elements of the first product in this industry. "

The STA8135GA uses a 7mm x 11mm x 1.2mm QFN package, has been sampled, which is fully compliant with the AEC-Q100 standard, which is planned to be put into production in the first quarter of 2022.

Technical Description

STA8135GA also integrates an independent low pressure difference (LDO) regulator on the on-chip, powering the IC analog circuit, digital core, and I / O transceiver, thereby simplifying the choice of external power supply. The receiver can track GPS, Glonass, Beidou, Galileo, QZSS, and Navic / IRNSS navigation positioning satellites.