Pentek More Than Doubles Signal Bandwidth With Cobalt Model 71651 Software Radio Module

  • Dual-channel 500 MHz A/Ds capture 240 MHz of signal bandwidth
  • Digital up and down converters tune across a wide range of IF signals
  • Multiboard programmable summation circuitry simplifies real-time beamforming
  • On-board Xilinx Virtex-6 FPGA comes preconfigured for turnkey operation
Pentek, Inc., today announced its fastest ever multichannel data converter with digital down and up converters. With two channels each of 12-bit, 500 MHz A/D and 16-bit, 800 MHz D/A, the Model 71651 delivers more than twice the bandwidth of Pentek's previous data converters. As a member of the popular Cobalt" family of high-performance XMC modules, the Model 71651 has a Xilinx Virtex-6 FPGA at its core. The FPGA is preconfigured with data acquisition and playback IP to give the module turn-key functionality, with room left for user customization.

"The Model 71651 handles a tremendous breadth of communications and radar signals," commented Rodger Hosking, vice president of Pentek. "With its high speed data converters and digital up/down converters, tuning bandwidths range from 10 kHz to 240 MHz, two and a half times our previous modules." Hosking also pointed out that the 71651 FPGA is preconfigured for use out of the box. "Our embedded IP was inspired by what our customers most often require for their applications. We're simply giving them a quick start towards their final configuration."

The Model 71651 features two input and two output RF channels, transformer-coupled to allow direct connection to HF or IF radio stages. The input channels feature 12-bit, 500 MHz A/Ds that feed data into the Virtex-6 FPGA. The output channels incorporate a Texas Instruments DAC5688 digital upconverter that translates real or complex baseband signals to any IF frequency up to 380 MHz. Dual 16-bit, 800 MHz D/As create real or in-phase (I) and quadrature (Q) analog outputs.

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