Design and SystemC-AMS Modeling of a Parallel Direct Digital Synthesizer
Keywords:Direct digital synthesis, multiplexing blocks, signal approximation, spectral analysis, SystemC modeling, SystemC-AMS modeling.
AbstractThis paper presents a new parallel direct digital frequency synthesis (PDDS) circuit providing simultaneous multichannel. The proposed circuit has several applications in instrumentation, identification and data communications. After analysis of a set of design architectures and their limitations, we opted for a rapid and optimized architecture using Wave Arithmetic Unit (WAU) to operate in a largest frequency range. The effectiveness of our proposed circuit is demonstrated by a high-level design of digital blocks in SystemC and analog blocks in SytsemC-AMS language. Finally, the analysis of result responses of all modules confirms the correct PDDS performances for an open microelectronic integration technology.
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