Indigenous multi-constellation GNSS System-on-Chip supporting GPS, GLONASS, NavIC, BeiDou, Galileo, QZSS, and GAGAN across L1/L2/L5/S-band — dual-core 440 MHz CPU, 8 Mbit SRAM.
AST-500 Multi-GNSS Baseband SoC
Indigenous multi-constellation GNSS System-on-Chip supporting GPS, GLONASS, NavIC, BeiDou, Galileo, QZSS, and GAGAN across L1/L2/L5/S-band — dual-core 440 MHz CPU, 8 Mbit SRAM.
Description
The AST-500 is Accord Software & Systems' indigenous multi-GNSS baseband receiver System-on-Chip designed for space, defense, UAV, and tracking applications. It can concurrently process any two GNSS frequency bands (L1, L2, L5, S), enabling dual-band reception for improved accuracy and ionospheric error mitigation across GPS, GLONASS, NavIC, BeiDou, Galileo, QZSS, and GAGAN. The chip integrates a dual-core 440 MHz CPU with floating-point unit, 8 Mbits SRAM, and 32 KB battery-backed RAM. Multiple peripheral interfaces (3 UARTs, 2 SPIs, QSPI, 2 I2C, 2 CAN) plus secure boot and encryption make it suitable for demanding aerospace deployments across −40°C to +85°C.
Specifications
| Constellations | GPS, GLONASS, NavIC, BeiDou, Galileo, QZSS, GAGAN |
|---|---|
| Frequencies | L1, L2, L5, S-band (dual concurrent) |
| CPU | Dual-core 440 MHz with FPU |
| SRAM | 8 Mbits |
| Battery-backed RAM | 32 KB |
| Interfaces | 3x UART, 2x SPI, QSPI, 2x I2C, 2x CAN |
| Position update rate | 1–10 Hz |
| Operating temperature | -40°C to +85°C |
| Supply voltage | 2.7 V – 3.3 V |
| Anti-jamming | 16-tone mitigation |
