TIDUF71 March 2024
The Reference Design is a 4T5R transceiver designed for space applications. The design is centered around the AFE7950-SP integrated RF sampling transceiver. The design includes all -SEP (Space Enhanced Plastic) or -SP (plastic) active devices. Passive components are compliant with MIL standard MIL-STD-55681 (or equivalent) where available; otherwise, an equivalent value and component size was substituted. The mechanical construction is compliant to the VITA-57 form factor and height restrictions. The design is configured to support several freqeuncy bands simultaneously. Two transmit and two receive channels (2T2R) operate in X-band, around 8.2GHz. Another two transmit and receive bands (2T2R) operate in S-band, around 2.2GHz for telemetry applications. The final receive channel (1R) operates in L-band for GPS applications. The design incorporates a clocking design with FPGA clocking, high performance device sample clock, and all SysRef signals needed for JESD204B operation. The design also includes the power design for all the active devices.