C*****y
发帖数: 203 | 1 刚刚做rf没多久，被要求给receiver做个LO signal的divider，说了phase noise的要
求。据说需要看pm的part，或者必须要加一个limiter再看pss的phase noise，还有说
要先算jitter再用公式算的。不过这几个结果都不一样呀，请板上的大牛帮忙看看，给
个指教吧。 | s******u
发帖数: 142 | 2 What kind of topology you use in the divider? and what's the division ratio?
If the ratio is big, like 32, or 16, it'll be difficult to get the pss
converged. If division ratio is small, like 4, or 8, you can directly
simulate it like an oscillator.
and what's the spec for the Phase noise in your divider? | C*****y
发帖数: 203 | 3 Great. I am working on the /2 and /4 circuit. Someone was telling me that I
can not simulate the phase noise of the divider as the same way I do for VCO
because it is a driven circuit. That is the reason I am asking.
请大牛指教
ratio?
【在 s******u 的大作中提到】
: What kind of topology you use in the divider? and what's the division ratio?
: If the ratio is big, like 32, or 16, it'll be difficult to get the pss
: converged. If division ratio is small, like 4, or 8, you can directly
: simulate it like an oscillator.
: and what's the spec for the Phase noise in your divider?
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