Why in the formula for normalized Phase Noise (FOM)  the contribution of PDF is calculated with 10*log10(PDF) and not 20*Log10(PDF)? In other wordl what is the explanation and the origin of this term?

Question

Why in the formula for normalized Phase Noise (FOM) the contribution of PDF is calculated with 10*log10(PDF) and not 20*Log10(PDF)? In other wordl what is the explanation and the origin of this term?

amiclaus · Accepted Answer

Hello, 
 Please start reading here: https://ez.analog.com/rf/w/documents/10100/faq-pll-normalized-phase-noise-floor-and-1-f-phase-noise 
 Thank you, 
 Antoniu)

Electronic Design Services - PartnerZone

Why in the formula for normalized Phase Noise (FOM) the contribution of PDF is calculated with 10log10(PDF) and not 20Log10(PDF)? In other wordl what is the explanation and the origin of this term?