This article will hopefully give a clear view of DDC and DUC functionality in data converters and enable system designers to fully utilize the benefits that ADI converters can provide to the transceiver architecture. Digital signal processing blocks in converters provide valuable benefits to system designs, but these benefits are still not widely understood by many engineers. More and more such converters are integrated with complex digital signal processing blocks to simplify the FPGA’s work in the system design. High speed converters are one of the key functions in a modern wireless base station system. This article explores the integrated DDC and DUC channels in ADI’s IF and RF converters and explains how they work in real-world applications. ADI is integrating more and more of these digital IF processing blocks into high speed converter ICs, which significantly relieves design work and provides cost and power savings in the system. These digital functions can be realized in DSPs and FPGAs and some big companies also build their own digital IF processing ASICs.
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Functional processing blocks that are now being utilized in data conversion architectures to achieve faster data rates are digital IF processing, DDC (digital downconverter), and DUC (digital upconverter).
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To meet the ever increasing data demands of smartphone functionality, the infrastructure architecture of modern digital mobile communication systems must constantly evolve to accommodate wider bandwidths and faster data conversion. Digital Signal Processing in IF/RF Data Converters