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Design Method in Optimization Differential LCVCO6 v1 e, ~. c3 T0 h, H* t4 P
MAN J ia-han,ZHAOKun" b9 u" z# @% j( [
( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)
: p- v: E4 r6 B6 V) n) cAbstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen
1 ?- l& @2 I+ E2 h9 m7 Noise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as
/ {3 ]. |. J1 A) h: v. m) U; Bdesigning high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.% u. C2 }0 C7 u- w0 A0 a0 G
A 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 result5 Q8 a; s! p7 P4 V$ y1 R; L
describes that the phase noise of the V C O is - 120.4dB c/H z@ 600 kH z. T his result proves th at the6 d; C. W# v0 ^+ R
m eth od is valid.
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[ 本帖最後由 sjhor 於 2007-5-17 10:26 PM 編輯 ] |
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