Phase Error 12302021 1 PLL Reference Oscillator f

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Phase Error 12/30/2021 1

Phase Error 12/30/2021 1

锁相环（PLL） Reference Oscillator f 1 Phase Detector Ve Low Pass Filter VT VCO Output

锁相环（PLL） Reference Oscillator f 1 Phase Detector Ve Low Pass Filter VT VCO Output f 1’ Fractional Divider-N 12/30/2021 11

锁相环的相位噪声 Noise Reference Oscillator Phase noise of source Phase Detector Noise 20 log. N

锁相环的相位噪声 Noise Reference Oscillator Phase noise of source Phase Detector Noise 20 log. N Noise floor VCO noise Frequency PLL的噪声来自：参考信号源、鉴相器、VCO、分频器和宽带基底噪声。 12/30/2021 13

VCO噪声对锁相环的贡献 frequency 12/30/2021 14

VCO噪声对锁相环的贡献 frequency 12/30/2021 14