Low-power low-phase noise sigma-delta fractional-N frequency synthesizer using phase-locked loop

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  机译： 使用锁相环的低功率低相位噪声SIGMA-DELTA分数-N频率合成器

• 4. Sigma-delta modulation with minimized noise and fractional-N phase-locked loop including the same [P] . 美国专利： US7538703B2 . 2009-05-26

  机译： 具有最小化噪声的Sigma-delta调制和分数N锁相环

• 5. Sigma-delta modulation with minimized noise and fractional-N phase-locked loop including the same [P] . 美国专利： US2007182611A1 . 2007-08-09

  机译： 具有最小化噪声的Sigma-delta调制和分数N锁相环

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