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Design Method in Optimization Differential LCVCO
, a$ Y& u) {7 Y6 PMAN J ia-han,ZHAOKun
# u7 f% X% J, ]$ k# I: V9 v0 m/ k( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)$ g, l9 w. e! h$ p
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen
, ^& W- Q0 W' Toise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as% l6 ~$ Q! f6 S
designing high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.
; @4 |; M) F* s6 `$ MA 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
" l: D( g! P2 ^7 m4 r {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 the# G1 `3 o; h) ^, N9 d" p3 J* M1 h; {
m eth od is valid.1 f7 u# E2 u' u" u( q5 T
: r4 W7 V8 Z; p7 X& ^ c2 H( a# W2 D6 c. b, ^( k, H7 A. @
回覆後 可以下載PDF附件 權限10 & 3RDB
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/ @* W# Q* J# i; s2 r. B. R) W[ 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