Spectrum Signal Processing by Vecima

Overview

The XMC-1151 is an ultra high-speed digitizer and processing solution in a VITA 42.3 XMC form factor. The module allows for direct RF-to-digital baseband conversion using a single dual-channel 12-bit ADC running at 1.8 GSPS or 3.6 GSPS when both channels operate together in interleaved mode. The ADC conversion stage is integrated with a Xilinx® Virtex®-6 SX315T or LX240T FPGA device and 1 GB of DDR3 SDRAM for wide bandwidth signal processing and filtering in the digital domain. The module has an 8-lane PCI Express, ANSI/VITA 42.3 host interface providing up to 4 GB/s full duplex to the host.

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Features

• One 3.6 GSPS 12-bit ADC channel (or two channels at 1.8 GSPS); or
  One 3.2 GSPS 12-bit ADC channel (or two channels at 1.6 GSPS
• ADC input bandwidth up to 2.8 GHz enables bandpass sampling (Second Nyquist zone)
• Xilinx Virtex-6 SX315T or LX240T User FPGA
• 1 GB DDR3 SDRAM (2 banks of 512 MB, 1066 Mbps)
• XMC module supporting PCI Express x8 Gen 2 (VITA 42.3) (4 GB/s full-duplex)
• Supports multi-board synchronization for phase coherent sampling
• General purpose digital I/O including high speed serial
• Drivers and SDK, API, FPGA interfaces included
• Digital downconverter (DDC) IP available
• Air-cooled, rugged conduction-cooled available

Benefits

• Direct RF-to-Digital conversion between 100 MHz and 3 GHz on a single card
• Support coherent sampling across multiple channels for direction finding or beamforming applications
• Supports high-speed interface to variety of compatible (VITA 42.3 XMC) host carriers
• Accelerate development time, and reuse application between development lab and deployed environment with common software
• Deploy in harsh environments

Applications

• SIGINT (COMINT/ELINT)
• RADAR
• Satellite Receiver
• Electronic Support Measures (ESM)
• Spectral Analysis
• Software Defi ned Radio (SDR)
• High-Speed Test and Measurement
• Wireless Set-Top Box Development
• Wideband Sensing for Cognitive Radio
• Channel Measurement and Characterization

Click on any of the images below to see a larger view.

Fig 1 (above) Characterization at 1498 MHz input signal spectrum with 3.2 GSPS

• SNR 54.31 dBFS @ 1498 MHz Fin typical
• SFDR 54.82 dBc @ 1498 MHz Fin typical
• ENOB 7.90 bits @ 1498 MHz Fin typical

Fig 2 (above) Characterization at 1448 MHz input signal spectrum with 1.6 GSPS

• SNR 54.55 dBFS @ 1448 MHz Fin typical
• SFDR 60.22 dBc @ 1448 MHz Fin typical
• ENOB 8.38 bits @ 1448 MHz Fin typical

Fig 3 (above) Characterization at 895 MHz input signal spectrum with 1.0 GSPS

• SNR 58.61 dBFS @ 895 MHz Fin typical
• SFDR 67.02 dBc @ 895 MHz Fin typical
• ENOB 9.13 bits @ 895 MHz Fin typical

Video Overview and Demo