Description
Original USRP X440 30MHz-4GHz SDR Software Defined Radio 8 TX AND 8 RX 1.6 GHZ BW GPSDO for NI ETTUS

Overview:

The USRP X440 is a USRP Software Defined Radio (SDR) Device that helps you integrate hardware and software for prototyping high-performance, multichannel, wideband signal generation and analysis systems. This SDR features 8 TX and 8 RX channels with a direct sampling transceiver architecture. It also features a Zynq UltraScale+ RFSoC with programmable FPGA supporting the open source UHD and RFNoC tool flows for integration of external up- and down-conversion, filtering, and amplification front ends. With these features, the USRP X440 has the IF and processing performance for applications such as radar, EW, SATCOM and mmWave development and prototyping. Additionally, the USRP X440 includes a GPS-disciplined 10 MHz oven-controlled crystal oscillator (OCXO) Reference Clock, which improves frequency accuracy and synchronization.

Dual Rate
The USRP X440 supports being operated at two different master clock rates simultaneously. Due to the direct sampling architecture of the USRP X440, TX and RX signals are affected by Nyquist zones and their boundaries. By using different rates for both radios, one can close the Nyquist gap of the other.

Features:
RF Features:
• Front End: Balun-coupled MMPX
• IF Range: 30 MHz – 4 GHz*
• Bandwidth: up to 1.6 GHz*/channel, 3.2 GHz total
• Direct Sampling: Flexible up to 4 GSps
• Channel Count: 8 (Tx/Rx or TRX)
• Phase Coherency: Yes (sample-based)
Phase Stability (within device): < 1° RMS
Phase Stability (device-to-device): < 2° RMS
Phase Repeatability (within device): < 3° Peak-to-Peak
• Tx Output Level: < 0 dBm full scale
• Rx Input Level: 10 dBm full scale

* IF-Bandwidth combination limitations apply due to Nyquist zones and gaps

Digital Features:
• Zynq UltraScale+ RFSoC ZU28DR-2
Built-in quad-core processor for ARM
• Streaming Interface: Dual 100 GEth via QSFP28
• Synchronization: 10 MHz / PPS, GPSDO, IF
• Software: Open source (GNU Radio, RFNoC, UHD)
• GPIO for front-end control via UHD API or FPGA
2x 12 lanes via HDMI-compatible with SPI protocol support

Package Included:
• 1 x USRP X440

Packaging Details:
• Weight: 2kg

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