SpaceVPX System RF Module (SRFM-PS)

Frontgrade’s SRFM-PS is a 3U SpaceVPX RF Transmit/Receive Interface Module designed to plug into the RPS-9X-PS systems, providing direct-to-digital (D2D) conversion of RF signals up to S-band frequencies. 

The System RF Module (SRFM) is a 3U SpaceVPX form factor companion building block available for integration in the RPS-9X-PS.  The SRFM-PS provides direct-to-digital conversion of a single RF transmit and receive channel carrying frequencies from 600MHz-2600MHz (L/S band frequencies). The RF signals are converted through high-speed data converters interfacing over the 3U SpaceVPX backplane using JESD204B, where the RPM-PS can function as digital signal processing engine and support applications such as software defined radios.

In its standard configuration, the SRFM-PS boasts the following attributes:

TX Performance

• AD9176S Digital to Analog Converter (DAC) 
• 12.6 GSPS, 16-Bit Resolution, with interpolation 
• 6.16 GSPS, 16-Bit Resolution, no interpolation 
• Supports Real and Complex Data 
• 48-bit NCO 
• JESD204B x8 
• 2-tone intermodulation distortion (IMD) = −83 dBc at 1.8 GHz, −7 dBFS/tone RF output 
• Spurious free dynamic range 

RX Performance

• AD9213S Analog to Digital Converter (ADC) 
• 10.25 GSPS, 12-Bit Resolution, 6.5GHz bandwidth 
• Integrated Digital Downconverter
• Supports Real and Complex Data 
• 48-bit NCO 
• JESD204B x8

(SFDR) Mass / Volume / Thermal

• Mass: less than 600 gm (estimated)
• Maximum operating temperature: -25°C to +65°C
• Maximum power consumption: 31.5W

OPERATIONAL LIFE / RELIABILITY AND PERFORMANCE

• System reliability over 0.9
• System SEU rate: No more than one per year for typical LEO Missions
• TID of 25 krads (Si) or 100 krads (Si) optional assuming 100 mils of shielding with 6061-T6 Aluminum
• Level-2 parts pedigree per EEE-INST-002 and PEM-INST-001 is available