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Design Method in Optimization Differential LCVCO& o+ P! ^* L9 ^2 m, n
MAN J ia-han,ZHAOKun
4 j4 C/ B; X2 e7 Y, k( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)# [/ r ^! ^& W% Y
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen
8 w) x l% z0 J* @$ }oise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as
1 P8 }6 i" i6 A. _' ydesigning high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.6 |9 l, Z% \; w8 V( {: g- D8 z
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 result
9 m" { x, E1 }: e: g9 Tdescribes that the phase noise of the V C O is - 120.4dB c/H z@ 600 kH z. T his result proves th at the0 {3 M. ]( `2 T& N2 S, l i- }7 Z
m eth od is valid.
9 u7 S# I: D: S/ m0 D2 G- \6 ~5 G G/ X; V2 U% [% I9 ]' i, _
o, ^" f: R; `% h7 w( i回覆後 可以下載PDF附件 權限10 & 3RDB
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[ 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