关于PLL相位噪声的仿真

mmic1978 · 发表于 2009-3-24 14:56:38

原帖由 ronialeonheart 于 2009-2-19 11:27 发表

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各部分的噪声可以用pss＋pnoise仿真
总的就建模吧

期待答案, 困惑中

faithfully · 发表于 2009-3-24 20:44:47

Not frequency but phase. All the kinds of noise in the loop can be translated to the phase deviation compared with the ideal reference clk. The phase error over 2pi then squared is just the phase noise in dBc. All the simulators use this fudamental to calculate pll phase noise.