IP core accepts digitised data at sample rates of 3.6GS/s

6th October 2014

RFEL Limited

Siobhan O'Gorman

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The Wideband Digital Down-Converter (Wideband DDC) IP core has been introduced by RFEL. Designed to accept wideband digitised data at sample rates of up to 3.6GS/s, the IP core supports first or second Nyquist bandwidths of up to 1.8GHz. From anywhere within the chosen input Nyquist band, signals with bandwidths as high as 180MHz can be down-converted to I/Q.

Enabling the total removal of IF components, the down-conversion frequency is tuneable over the 1.8GHz range, with an accuracy of better than 1Hz. User control of the output sample rate, which can be programmed between 1kS/s to 225MS/s with an accuracy of better than 1S/s, provides an extracted signal bandwidth in the range 800Hz to 180MHz.

A spurious free dynamic range of at least 80dB, with a passband peak-to-peak ripple of less than 0.1dB, is provided by the core's high performance filtering. The IP core provides user control of the down-conversion frequency and output sample rate, making it suitable for software defined radio, electronic warfare, signal surveillance and generic digital receiver applications. The core can be used with RFEL's range of channeliser designs, which provide flexible down-conversion for single and multiple channel applications.

Alex Kuhrt, CEO, RFEL, said, "The ability to down-convert a signal, from a bandwidth as high as 1.8GHz, makes the Wideband DDC an obvious choice for communications, electronic warfare and surveillance applications. We use the latest Xilinx and Altera FPGA technology, so that solutions can be made compact, lightweight and low power. Furthermore, the use of a flexible architecture makes the product easily configurable to the customer's specific needs."

RFEL will present the Wideband DDC at MILCOM, 6-8th October 2014 at the Baltimore Convention Center, MD, US. The company will be in booth 468.