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An eight channel 3U VPX data acquisition board with 310 Msps ADC,16 bits resolution and a Xilinx Kintex Ultrascale FPGA.

  LXF31K18 datasheet



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LXF31K18 – eight channels 3U VPX, 310 Msps ADC with 16-bit resolution

A combination of eight analogue-to-digital converter channels and a Xilinx Kintex Ultrascale makes the LXF31K18 the ideal platform for embedded signal processing applications such as Electronic Warfare, Radar receiver, instrumentation or MIMO communication applications. The LXF31K18 is fully compliant with the Vita65.0 openVPX standard and the VITA46.11 VPX shelf management standard.

Analog input

Depending on the application requirements, it is possible to order the LXF31K18 with either a DC coupled or an AC-coupled analogue front end. The DC-coupled interface is meant for signal acquisitions in the first Nyquist zone, while the AC-coupled inputs also offers the option for signal acquisition in the second Nyquist zone. The ADCs offer 16-bit resolution, further contributing to achieving best in class signal to noise ratios.

Clock tree

The onboard low-noise clock generator ensures easy integration into small single-board systems as well as standalone operation. For larger systems it is possible to easily synchronize multiple boards by providing an external reference clock. This is a special feature offered by the onboard clock pll.

FPGA and Memory

The LXF31K18 comprises a Xilinx Kintex Ultrascale KU060 user programmable FPGA. Most of the logic, block RAM and all DSP resources are available for customer processing. With the KU060 FPGA the LXF31K18 offers; 663 K logics cells, 1,080 36 Kbit RAM blocs, 3 PCIe interface blocks and 2,760 DSP48 slices. The FPGA speed grade is -2. The LXF31K18 FPGA connects to one 72 bits wide DDR4 memory bank, offering a total of 4GB of storage with error correction codes. At 2400 Mhz, the memory bank offers a total bandwidth of 21.6 GB/s. For FPGA configuration, the LXF31K18 has 64MB QSPI FLASH memory.

VPX interface

At the P1 connector, the LXF31K18 has two fat pipes that form the data plane. At the expansion plane on P1 there are also two FAT pipes. Each fat pipe can be divided into two thin pipes or four ultra-thin pipes. A total of thirty-two user-definable LVDS signals connect between the FPGA and the VPX P2 connector. Two types of cooling are supported by the LXF31K18. For harsher environmental conditions, the board can be ordered in the conduction-cooled version. Otherwise, the board is available in an air-cooled version.


Systems that will benefit greatly from this product are:

  • Advanced digital radio frequency memory (DRFM)
  • Radar waveform generators and receivers
  • Telecommunication systems
  • Experimental Physics
  • Analog record and playback systems
  • Aerospace and test instrumentation
  • Software-defined radio (SDR)

Additional information

Kintex Ultrascale

KU060 (726K Logic Cells, 38Mb Vlock RAM, 2760 DSP slices), KU040 (530K logic cells, 21.1Mb Block RAM, 1920 DSP slices), KU035 (444K logic cells, 19Mb Block RAM, 1700 DSP slices)


AC Coupling, DC Coupling

Operating Temperature

Extended (0°C ~ 85°C), Industrial (-40°C ~ 85°C)

Conformal Coating

No Conformal Coating, Mil-I-46058-C Conformal Coating


Product Information

Number of analogue input channels:  8
Front panel IO connector type:  SSMC or MMCX
Front panel IO type:  ADC
FPGA type:  Kintex Ultrascale – KU060 (530K logic Cells, 38Mb Block RAM, 2760 DSP slices)
Form Factor:  VPX – 3U (VITA65.0 3U OpenVPX compliant)

Analogue input specification

Input coupling:  AC or DC coupled
Input maximum sample rate:  310 Msps
Input number of bits:  16 bits resolution
Impedance:  50 Ω
Input bandwidth AC coupled:  10 MHz – 400 MHz
Input bandwidth DC coupled:  DC – 200 MHz
Input AC full-scale power:  +12 dBm
Input DC full-scale power:  +6 dBm

Legislation and Environmental

Supported operating temperature:  Commercial (0°C ~ 70°C) and Industrial (-40°C ~ 85°C)
Ruggedization:  standard Commercial Air-cooled and Rugged Conduction- cooled
ROHS Compliant:  Yes – RoHS Phthalates Compliant
SVHC:  Product contains no SVHC (15-May-2020)
Country of origin:  The Netherlands ( Europe)
Tariff Number (HS code):  84733020- Electronic assemblies of automatic data-processing machines
ECCN:  3A002.h.1.e.2.c

Block Diagram


 LXF31K18 datasheet