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Description: PLL system LPF/PFD/VCO/Divider model in Matlab,在Matlab中将PLL系统的各个模块模型话，便于分析整个PLL的环路稳定特性，锁定时间等…… 附录中包含完整的Matlab code-PLL system LPF/PFD/VCO/Divider model in Matlab, the Matlab will PLL system model of each module, the easy analysis of the whole PLL loop stability characteristics, lock time ... ... the appendix contains a complete Matlab code
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Size: 92160 |
Author: xin |
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Description: 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.
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Size: 449536 |
Author: 朱成发 |
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