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Design Method in Optimization Differential LCVCO7 w- @8 c/ [' U& z+ F0 {
MAN J ia-han,ZHAOKun% D; U2 I, \: b: f$ a
( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)- v+ {) g6 l* M8 e$ W. v M3 K! ]
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen
1 x/ J' V0 P4 S @% p) \oise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as$ p+ |3 i( E6 _# e0 k
designing high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.
6 P% T" r; Z- J$ UA 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
1 @% [) z& Z: R, {! P6 gdescribes 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
5 ~, |2 Q; H3 h9 b. B0 ~# rm eth od is valid.* w) ~3 U& W5 c+ L
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) A9 y: A" t% H4 O/ J回覆後 可以下載PDF附件 權限10 & 3RDB
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6 a7 J8 ?2 d7 h; q( O( ^9 f[ 本帖最後由 sjhor 於 2007-5-17 10:26 PM 編輯 ] |
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發表於 2007-5-17 22:22:27
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太棒了~~~現在亟需VCO資料