Y.A. Chau and J.-F. Chen (Taiwan)
Modulo-N, Accumulator, Digital Frequency Synthesizer, Flying Adder
With a modulo-N accumulator and a set of reference waveforms, a new architecture of high-performance digital frequency synthesizer is devised. The reference waveforms with the same frequency but different phases are passed through a multiplexer to obtain the maximal frequency with an incrementer. A Gray encoder is designed to eliminate the glitch problem. The performance of the synthesizer is illustrated via timing simulations with the TSMC 0.35µm cell-based process.
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