CDH-1
CAVU Aerospace UK Ltd
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The CAVU CDH-FS is a state-of-the-art, fully redundant FPGA-based satellite onboard computer system. It’s designed with a backup processor board that seamlessly takes over in case of a primary processor failure, ensuring uninterrupted operation. This redundancy significantly enhances the system’s reliability and safety, a critical feature for space missions.
The onboard computer (OBC) is engineered to withstand various space hazards, including radiation, cosmic rays, and solar flares.
It utilizes a Microchip/Microsemi SmartFusion2 and ProASIC3 Flash Based FPGAs, which are not only SEU immune but also more power-efficient than conventional SRAM-based FPGA architectures.
- Dimensions:
- 205x203x87 mm
- Mass:
- 4,250 g
- Power Supply:
- 5V +/- 5%
- Power Consumption:
- 3W ~ 5W
- Processor:
- ARM Cortex-M3 on FPGA
- FPGA 1:
- Microchip/Microsemi SmartFuion2 Flash Based FPGA
- FPGA 2:
- Microsemi ProASIC3 Flash Based FPGA for Interaface
- Processor Performance:
- 150 DMIPS @ 128MHz
- Programming and Debug:
- SoftConsole/Keil via JTAG
- RAM:
- 160Mbits MRAM 40 bits width (128Mbits+32Mbits ECC)
- ROM:
- 96Mbits MRAM (Con figurable as Triple 32Mbits)
- Nonvolatile Flash Memory:
- Total 24Gbit SLC NAND Flash (Triple 8G)
- Serial FRAM:
- 256 Kbit
- Serial NOR:
- 256 Mbit
- Radiation Hardness:
- Total Ionizing Dose: 30Krad (Si)/yr
- Latchup:
- SEE @ 60MeV
- Operating Temperature Range:
- -40C to 85˚C @10^-8 torr
- Shock:
- 2000g, 2000-10000Hz
- Random Vibrations:
- 14g(RMS) 3-Axis , 20~2000Hz
- DIGITAL/ANALOG Interface:
- Digital Outputs (5V/3.3V) : 100x
- DIGITAL/ANALOG Interface:
- Digital Inputs (5V/3.3V) : 90x
- DIGITAL/ANALOG Interface:
- PWM/Pulse Outputs (5V/3.3V) : 10x
- DIGITAL/ANALOG Interface:
- 16bits Analog To Digital Converter (-10V~+10V) : 128x
- DIGITAL/ANALOG Interface:
- Digital To Analog Converter (0V~5V) : 2x
- Serial Interface:
- CAN2.0 Up to 1Mbps : 5x
- Serial Interface:
- Full-Duplex RS422 : 8x
- Serial Interface:
- Half-Duplex RS485 : 8x
- Serial Interface:
- RS232 :1x
- Serial Interface:
- I2C : 1x
- Serial Interface:
- SPI : 1x
The CAVU CDH-FS is a state-of-the-art, fully redundant FPGA-based satellite onboard computer system. It’s designed with a backup processor board that seamlessly takes over in case of a primary processor failure, ensuring uninterrupted operation. This redundancy significantly enhances the system’s reliability and safety, a critical feature for space missions.
The onboard computer (OBC) is engineered to withstand various space hazards, including radiation, cosmic rays, and solar flares.
It utilizes a Microchip/Microsemi SmartFusion2 and ProASIC3 Flash Based FPGAs, which are not only SEU immune but also more power-efficient than conventional SRAM-based FPGA architectures.