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DIRECT DIGITAL FREQUENCY SYNTHESIZER WITH PHASE SELECTABLE INTERPOLATOR
DIRECT DIGITAL FREQUENCY SYNTHESIZER WITH PHASE SELECTABLE INTERPOLATOR
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机译:带相位选择插值器的直接数字频率合成器
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摘要
The disclosure relates to improved direct digital frequency synthesizers. A synthesizer in one embodiment is comprised of an accumulator that provides a phase signal and an interpolator having two or more interpolation polynomials. The polynomial that processes the phase signal is selected by comparing the phase signal to a threshold value. A reduced complexity digital circuit is provided for implementing the improved synthesizer.
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