FPGA-based CDH subsystem with 128-channel 16-bit ADC card, 5 CAN buses, 8 RS422/RS485 channels, and 100 digital outputs for demanding space mission control.
CDH-1 Command and Data Handling
FPGA-based CDH subsystem with 128-channel 16-bit ADC card, 5 CAN buses, 8 RS422/RS485 channels, and 100 digital outputs for demanding space mission control.
Description
The CAVU CDH-1 is a highly reliable, FPGA-based satellite command and data handling subsystem designed for critical space missions. Features flexible architecture for easy scalability and redundancy. Includes a dedicated 128-channel Analog to Digital Converter card. Built on Microchip/Microsemi SmartFusion2 and ProASIC3 FPGAs with ARM Cortex-M3 core. Provides full I/O coverage with 5 CAN buses, 8 RS422 and RS485 channels, 100 digital outputs, and 90 digital inputs.
Specifications
| Processor | ARM Cortex-M3 on SmartFusion2 + ProASIC3 FPGAs |
|---|---|
| Performance | 150 DMIPS @ 128 MHz |
| RAM | 160 Mbit MRAM (128 Mbit + 32 Mbit ECC) |
| NAND Flash | 24 Gbit SLC |
| ADC | 128 channels x 16-bit |
| Digital I/O | 100 outputs + 90 inputs |
| CAN 2.0 | 5x |
| RS422 / RS485 | 8x each |
| Dimensions | 205 x 180 x 38 mm |
| Mass | 1550 g |
| Power Consumption | 3-5 W |
| Input Voltage | 5V +/-5% |
| Radiation TID | 30 krad (Si)/yr |
| Operating Temperature | -40 to +85 deg C |
| LEO Lifetime | 3-5 years |