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Nov 30th, 2021, 6:27am
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Phase Noise through the NTF of VCO (Read 52 times)
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Phase Noise through the NTF of VCO
Oct 21st, 2021, 7:35am
 
Assuming that I have a PSD of random noise on Vcontrol of VCO as discrete points from the simulator, eg. 50 points per decade. Now I have to simply find the phase noise at the output of the VCO. Do I :
A. assume the NTF is Kvco/f, do dot product of PSD and square(Kvco/f) at the corresponding frequency points?
                                                              OR
B. Now that the points are discrete, I assume each bin value is a sinusoid, convert the rms to peak by sqrt(2) and then get the USB/LSB as half the value and then dot product by square(Kvco/f) at the corresponding frequency points?

A and B differ by a scaling factor due to the sinusoid assumption.
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