16-Bit Data Acquisition Board

Pentek, Inc. (Upper Saddle River, NJ) has added the Model 71662 four-channel, 200 MHz, 16-bit data acquisition board with built-in digital down converters (DDCs) to its popular Cobalt® family of Xilinx Virtex-6 FPGA boards. With an input bandwidth from 300 kHz to 700 MHz, the board is suitable for direct connection to IF or RF ports of communications, unmanned autonomous vehicle (UAV) and radar systems for real-time DSP tasks such as demodulation and decoding. Together with Pentek’s ReadyFlow board support package, with its built-in command line interface and signal viewer, the Model 71662 forms a complete solution for data acquisition, processing and analysis.

The 71662 provides four transformer-isolated input channels that each supply a Texas Instruments ADS5485 16-bit, 200 MHz ADC. The ADC outputs pass to an input multiplexer that supports four Acquisition IP modules factory-installed in the Xilinx Virtex-6 FPGA. Each IP module can receive data from any of the four ADCs, or from a test signal generator, providing highly flexible input and antenna assignments. Four 512 MB DDR3 SDRAM memory banks, one for each IP module, can buffer data in a FIFO mode or store data in a transient capture mode. All memory banks have DMA engines for streaming data at up to 1600 MB/second through the PCIe interface to off-board storage or additional processing.

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