Bynav Alita GNSS Baseband ASIC

Product overview

Bynav Alita is a high-precision GNSS baseband ASIC developed from the company's FPGA solutions for positioning applications. It has 328 channels and can track up to 72 satellites simultaneously, with support for signals from BDS-2, BDS-3, GPS, GLONASS, Galileo, QZSS, NavIC and SBAS; BDS-3 B2b support is marked as reserved. Its intended civilian applications include intelligent driving, driver license testing, surveying and mapping, engineering machinery and unmanned systems such as UAVs.

Alita provides a multi-sensor fusion interface with four frequency-variable output channels and EVENT input synchronization. Bynav specifies synchronization accuracy of 20 ns for use with sensors such as LiDAR, inertial navigation systems and cameras. Its navigation processing includes multi-satellite, multi-frequency vector tracking, multi-correlator multipath suppression, external inertial navigation input to assist signal tracking, and real-time signal quality monitoring. These techniques are described as improving interference resistance and observation quality in challenging environments.

The specified observation data update rate reaches up to 100 Hz, with carrier-phase observation accuracy of 1 mm or less at one standard deviation. Alita accepts 12-channel digital intermediate-frequency input, supporting I or I/Q configurations and 2-bit or 4-bit quantization, and communicates through QSPI at up to 132 MHz. Typical power consumption is 0.8 W, and the operating temperature range is -40 to +85 degrees Celsius. Its stated dynamic limits are velocity of 500 m/s or less and acceleration of 4 g or less.

Specifications