Isle of Wight, England: RF Engines (RFEL) has extended its range of digital down-converter (DDC) technology so it can now process up to 1 GHz of bandwidth (2-Gsample/s analog-to-digital conversion rate) input and provide a narrower band output. This technology can operate with fixed frequencies and bandwidths or be flexible as required.
In one of its main application areas, surveillance in military digital receivers, this approach enables a desired signal band to be extracted from a section of the spectrum so further analysis of the signal content can be performed.
The RFEL Wideband DDC core is optimised for size and speed on a range of Xilinx or Altera FPGA devices. It includes options like fractional re-sampling for arbitrary output bandwidth selection and the ability to implement the design in either logic-rich or DSP-rich FPGA architectures.