文件名称:Sigma_Delta
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A novel met hod t o p artially compensate sigma2delta shap ed noise is p rop osed. By injecting t he comp en2
sation cur rent int o t he p assive loop f ilte r during t he delay time of t he p hase f requency detect or ( PFD) , a maximum
reduction of t he p hase noise by about 16dB can be achieved. Comp a red t o ot he r compensation met hods , t he tech2
nique p rop osed he re is relatively simple and easy t o implement . Key building blocks f or realizing t he noise cancel2
lation , including t he delay va riable PFD and comp ensation cur rent source , a re sp ecially designed. Bot h t he behavior
level and circuit level simulation results a re p resented.-A novel met hod top artially compensate sigma2delta shap ed noise is p rop osed. By injecting t he comp en2sation cur rent int ot he p assive loop f ilte r during t he delay time of t he p hase f requency detect or (PFD) , a maximumreduction of t he p hase noise by about 16dB can be achieved. Comp a red to ot he r compensation met hods, t he tech2nique p rop osed he re is relatively simple and easy to implement. Key building blocks f or realizing t he noise cancel2lation, including t he delay va riable PFD and comp ensation cur rent source, a re sp ecially designed. Bot ht he behaviorlevel and circuit level simulation results a re p resented.
sation cur rent int o t he p assive loop f ilte r during t he delay time of t he p hase f requency detect or ( PFD) , a maximum
reduction of t he p hase noise by about 16dB can be achieved. Comp a red t o ot he r compensation met hods , t he tech2
nique p rop osed he re is relatively simple and easy t o implement . Key building blocks f or realizing t he noise cancel2
lation , including t he delay va riable PFD and comp ensation cur rent source , a re sp ecially designed. Bot h t he behavior
level and circuit level simulation results a re p resented.-A novel met hod top artially compensate sigma2delta shap ed noise is p rop osed. By injecting t he comp en2sation cur rent int ot he p assive loop f ilte r during t he delay time of t he p hase f requency detect or (PFD) , a maximumreduction of t he p hase noise by about 16dB can be achieved. Comp a red to ot he r compensation met hods, t he tech2nique p rop osed he re is relatively simple and easy to implement. Key building blocks f or realizing t he noise cancel2lation, including t he delay va riable PFD and comp ensation cur rent source, a re sp ecially designed. Bot ht he behaviorlevel and circuit level simulation results a re p resented.
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一种补偿宽频带小数N频率合成器中Sigma_Delta整形噪声的新方法_英文_.pdf