从相位噪声和杂散的角度分析了这些频率合成方案的优缺点。
We analyze the main advantages and disadvantages of these architectures, which mainly focus on the phase noise and spurs.
提出了一种实现宽覆盖、低相位噪声、低杂散的频率合成方法。
A method to realize a wide frequency-coverage frequency synthesizer with low spurious level and low phase noise level is proposed in this paper.
由于高阻电路容易拾取杂散的辐射噪声，所以需要采取屏蔽措施。
Shielding is required because high impedance circuitry is susceptible to pickup of spurious radiated noise.
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