差分LCVCO的設計方法[簡]

sjhor

Design Method in Optimization Differential LCVCO
2 n/ O6 q, }5 }6 U8 mMAN J ia-han,ZHAOKun
4 w( o4 p" s+ a  ?1 A9 A% K' u8 _( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen
. G+ Z, A2 n% Boise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as
designing high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.
% l/ d, k( d  c1 a8 X. u/ c; ^$ _; DA t the end of th is paper, a 2.4G H z fully integrated V C O design is m entioned. T he sim ulation result
" b/ q, k1 O# Ndescribes that the phase noise of the V C O is - 120.4dB c/H z@ 600 kH z. T his result proves th at the
m eth od is valid.


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[ 本帖最後由 sjhor 於 2007-5-17 10:26 PM 編輯 ]