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Multi modulus divider Phase Noise simulation

NikosTS

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Hello everyone,
I want to simulate the phase noise of a multi modulus divider at the feedback path of a fractional frequency synthesizer.
The input frequency of the divider , which is the output of VCO, is 16G. The divider then divides this value with an average ratio of 200, which is controlled by a MASH. So the division ratio is changed between 197 and 204 , depending on the output value of MASH.
My question is how can i simulate that phase noise? Which is the correct analysis?

Best regards,
Nikos
 

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