3U VPX Wideband Down-Converters SOSA-Aligned

Open.Tech’s wideband RF down-converters—available in the iDC-7901 and iDC-7902 models—deliver full 2.0 to 18.0 GHz RF coverage in a rugged, 3U VPX SOSA-aligned form factor. Designed to interface directly with high-speed digitizer cards, these down-converters provide eight overlapping RF bands translated into 4 GHz-centered IF outputs.

Both models support low-frequency bypass (100 MHz–2.25 GHz), anti-alias filtering, and user-selectable IF output modes, making them ideal for real-time wideband digitization, RFSoC-based processing, and EW/SIGINT systems.

The iDC-7901 integrates a 5:1 RF input switch, ideal for multi-band reception or platform reuse. For designs that benefit from reduced front-end loss and optimized noise figure, the iDC-7902 offers a single-input architecture and +5 dB gain for direct-to-digitizer signal chains.

All RF I/O is handled through a rugged VITA 67.3 14-port SMPM or 20-port NanoRF connector (model dependent), supporting high-density, blind-mate integration into OpenVPX payload slots.

Feature Highlights

• Full-band 2.0–18.0 GHz RF coverage, with 8 overlapping bands

• IF outputs centered at 4.0 GHz, optimized for second-Nyquist digitizers

• Integrated anti-alias filtering: 60 dB alias rejection over 2.2 GHz BW

• Low-frequency bypass mode: 100 MHz–2.25 GHz

• SOSA-aligned 3U VPX form factor with VITA 46.11 platform management

• High dynamic range: 60 dB SFDR (min), +10 dBm OIP3

• <50W power consumption, -40 to +85°C operation

• Rugged backplane I/O via VITA 67.3 (SMPM or NanoRF)

Use Cases

• Wideband digital RF receivers

• Electronic Warfare (EW) platforms

• High Probability of Intercept (HPOI) systems

• Spectrum monitoring and surveillance

• RFSoC processing pipelines

• Low-SWaP unmanned systems (UAVs, ground platforms)

Model Comparison