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Home > Pipeline Newsletters > 1-Channel 3.6 GHz or 2-Channel 1.8 GHz 12-bit A/D and Virtex-6 FPGA -

Summer 2011 Vol. 20, No. 2

1-Channel 3.6 GHz or 2-Channel 1.8 GHz 12-bit A/D and Virtex-6 FPGA - 3U VPX


  • One-channel mode with 3.6 GHz, 12-bit A/D
  • Two-channel mode with 1.8 GHz, 12-bit A/Ds
  • 2 GB of DDR3 SDRAM
  • Sync bus for multiboard synchronization
  • LVDS connections to the Virtex-6 FPGA for custom I/O
  • 3U VPX form factor provides a compact, rugged platform
  • Compatible with several VITA standards including: VITA-46, VITA-48 and VITA-65 (OpenVPXTM System Specification)

Model 53640 General Information

The Model 53640 is a member of the Cobalt® family of high performance XMC modules based on the Xilinx Virtex-6 FPGA. A high-speed data converter, it is suitable for connection to HF or IF ports of a communications or radar system. Its built-in data capture features offer an ideal turnkey solution as well as a platform for developing and deploying custom FPGA processing IP.

The 53640 includes a 3.6 GHz, 12-bit A/D converter and four banks of memory. It features built-in support for PCI Express over the 3U VPX backplane.

The Cobalt Architecture

The Pentek Cobalt architecture features a Virtex-6 FPGA. All of the board’s data and control paths are accessible by the FPGA, enabling factory-installed functions including data multiplexing, channel selection, data packing, gating, triggering and memory control. The Cobalt architecture organizes the FPGA as a container for data processing applications where each function exists as an intellectual property (IP) module.

Each member of the Cobalt family is delivered with factory-installed applications ideally matched to the board’s analog interfaces. The 53640 factory-installed functions include an A/D acquisition IP module. In addition, IP modules for DDR3 memories, a controller for all data clocking and synchronization functions, a test signal generator and a PCIe interface complete the factoryinstalled functions and enable the 53640 to operate as a complete turnkey solution, without the need to develop any FPGA IP.

A/D Converter Stage

The front end accepts analog HF or IF inputs on a pair of front panel SSMC connectors with transformer coupling into a National Semiconductor ADC12D1800 12-bit A/D. The converter operates in singlechannel interleaved mode with a sampling rate of 3.6 GHz and an input bandwidth of 1.75 GHz; or, in dual-channel mode with a sampling rate of 1.8 GHz and input bandwidth of 2.8 GHz.

The ADC12D1800 provides a programmable 15-bit gain adjustment allowing the 53640 to have a full scale input range of +2 dBm to +4 dBm. A built-in AutoSync feature supports A/D synchronization across multiple boards.

The A/D digital outputs are delivered into the Virtex-6 FPGA for signal processing, or for routing to other board resources.

PCI Express Interface

The Model 53640 includes an industry standard interface fully compliant with PCI Express Gen. 1 & 2 bus specifications. Supporting PCIe links of x4 or x8, the interface includes multiple DMA controllers for efficient transfers to and from the board.

For more information and a price quotation on the Model 53640, click here.

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