Fujitsu announced new DKXC5VADAPT-1 digital-to-analog (DAC) converter development kit

DKXC5VADAPT-1 Interfaces with HiTech Global FPGA Prototype Board to Combine Virtex-5FPGA with the Fujitsu High-Performance MB86064/5 DAC

Fujitsu Microelectronics America, Inc. (FMA) today introduced a new digital-to-analog (DAC) converter development kit adaptor designed to create a compact solution for developing and testing an FPGA-DAC interface.

The new DKXC5VADAPT-1 implements a high-performance interface, combining the power of the Xilinx Virtex(TM)-5 FPGA with the Fujitsu high-speed MB86064/5 DAC. The MB86065 is a 14-bit, 1.3GSa/s, single-channel DAC derived from the MB86064 dual 14-bit, 1GSa/s DAC.

The kit adaptor provides a physical link between the data headers on the Fujitsu DK86064-2 and DK86065-2 development kits and the HiTech Global V5-PCIE2 FPGA prototype board. The adaptor features six Samtec sockets that plug into the headers on the two boards, connecting 28 matched LVDS data pairs, the DAC Loop Clock pairs and two divided clock signals between the two boards. All clock signals are routed to dedicated global clock inputs on the FPGA.

The Hi-Tech Global V5-PCIE2 development platform features tri-mode Ethernet (10/100/1000), a 4-lane PCI Express end-point connector (upstream), and a DDR2 SO-DIMM socket (up to 4GB). The platform also includes a 512MB DDR3 component, 128MB Platform Flash XL for configuration, user Flash memory and on-board clocking.

Fujitsu Microelectronics development platforms are designed to deliver value to customers’ prototyping phases. The DKXC5VADAPT-1 comes with example firmware and, once combined with the appropriate Fujitsu DAC development kit, creates a compact platform that covers all aspects of the FPGA/DAC interface design.

"The platform speeds product time-to-market while significantly reducing the risk and cost of developing and debugging a custom development platform," said Tong Swan Pang, senior product marketing manager at Fujitsu Microelectronics America. "Standalone evaluation boards have limited benefits compared to this fully integrated and proven platform. This new adaptor ensures that Fujitsu’s development kits accelerate the development of realistic system solutions platforms."

The MB86064 and MB86065 DACs Use Loop Clock System to Maintain Clock-to-Date

The Fujitsu MB86064 and MB86065 DACs maintain valid clock-to-date timing by using a proprietary Loop Clock system. The Loop Clock is generated in sync with the DAC data at the FPGA output. The clock is passed through a user-programmable delay in the DAC, and then routed back to the FPGA’s PLL feedback input. Altering the delays in the divided clock or Loop Clock signals allows the user to advance or retard data timings to find the optimal data eye. Once calibrated, the system automatically compensates for the effects of device-to-device variations in phase, voltage and temperature (PVT).


The Fujitsu DKXC5VADAPT-1 DAC development kit adaptors are available now. Pricing is available upon request. To help customers get started with the platform, Fujitsu offers a sample implementation for the FPGA/DAC interface.

The Fujitsu DAC development kits, DK86064-2 and DK86065-2, come complete with a rich set of development tools and documentation. Optional SMA adaptor board, DK86064-1-SMA, additional PC USB Control cable and software, and DKUSB-1, are also available to facilitate development.

The Hi-Tech Global V5-PCIE2 FPGA prototype board is available directly from HiTech Global with a number of different Virtex-5 parts, including the XC5VLX50T and the XC5VFX100T. The FPGA can either be programmed directly over JTAG or via the on-board 128MB Flash memory. The configuration can be saved into Flash memory, removing the need to reprogram the device at power on. Programming is performed via a Xilinx USB programming cable.


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