Phase Accumulation Spurs in Direct Digital Frequency Synthesizers
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Resource Overview
Spectral Diagrams of Power Spectral Density Curves for Phase Accumulation Spurs, Amplitude Quantization Spurs, and DAC Nonlinear Spurs in Direct Digital Frequency Synthesizers
Detailed Documentation
The article discusses spectral diagrams of power spectral density curves for phase accumulation spurs, amplitude quantization spurs, and DAC nonlinear spurs in direct digital frequency synthesizers (DDS). These spectral plots illustrate the frequency distribution and power density of these spurious signals. Such spurs can adversely affect system performance and output signal quality. Therefore, during the design and optimization of frequency synthesizers, it is crucial to consider and mitigate the impact of these spurious components through techniques like proper phase accumulator bit-width selection, amplitude quantization error reduction algorithms, and DAC linearity calibration methods.
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