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.
標簽:
sigma2delta
compensate
injecting
artially
上傳時間:
2013-12-18
上傳用戶:qlpqlq