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The 7700 is the latest range of Pentek software-defined radio products, but the first to feature the PCI Express (PCIe) form factor with advanced connectivity options.

The range is comprised of five products: models 7741, 7742, 7750, 7751 and 7752.

Each offers a set of software radio features in a full-length PCI Express (PCIe) board with the latest Gen 2 PCIe x16 interface.

Since the 7700 range offers full-length PCIe boards, they incorporate up to two PMC/XMC modules, all within a single PCIe envelope.

Customers can utilise the PCIe interface for motherboard connections and XMC interfaces for Gigabit links between modules and other boards.

‘The 7700 boards excel in connectivity options and Pentek’s design now brings powerful Xilinx FPGA platforms to the PC arena,’ said Tom Feist, ISE Design Suite senior marketing director at Xilinx.

‘PCIe, PCI-X and XMC interfaces connect to on-board Xilinx FPGAs streamlining data flow directly across these links.

‘By choosing from many available IP core interfaces, these products can be tailored to meet specific protocols, including Aurora, the streaming link-layer protocol from Xilinx.’ Each of the five software radio boards offers specific resources including channel count, bandwidth, FPGA population and more.

The model 7741 includes up to four 125MHz, 14-bit A/Ds and four 500MHz 16-bit D/As.

It features one or two TI/Graychip GC4016 quad digital down converters with output bandwidths up to 10MHz, and one or two digital up converters that accept baseband real or complex data streams with signal bandwidths up to 40MHz.

One or two Xilinx XC2VP50 Virtex-II Pro FPGAs serve as control and status engines with data and programming interfaces to each of the on-board resources, including the A/D converters, digital down converters, digital up converters and D/A converters.

The model 7742 includes up to eight 125MHz, 14-bit A/Ds, two up converters and two 500MHz 16-bit D/As.

The 7742 architecture also includes up to four Virtex-4 FPGAs.

The model 7750 includes up to eight 200MHz, 16-bit A/Ds, up to 3MB of SDRAM, and up to four Virtex-5 FPGAs.

The model 7751 is a 512-channel digital downconverter with up to eight 200MHz A/Ds and up to four Virtex-5 FPGAs.

This represents a tremendous amount of processing power in a single PCIe slot.

It features independent tuning for each DDC channel and decimation from 128 to 1024 in steps of 64.

The model 7752 is a 64-channel downconverter with up to eight 200MHz, 16-bit A/Ds and up to four Virtex-5 FPGAs.

Each group of four A/Ds is supported by a high-performance 32-channel digital downconverter.

DDC decimation ranges from 16 to 8192 in steps of eight.

Another feature common to all the boards in the Pentek 7700 range is the four-pin disk drive power connector to ensure that the boards receive ample power from the host computer or server.

This augments the power supplied through the PCIe backplane connector.

The models 7741, 7742 and 7750 have user-configurable FPGAs and Pentek supports customers with the Gateflow design kits.

Because the model 7751 and 7752 have reinstalled FPGA digital downconverter IP cores, they do not require user programmability.

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