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Design Method in Optimization Differential LCVCO( i. i5 i+ H2 B% t4 G4 J
MAN J ia-han,ZHAOKun
9 ]& B7 i& j0 V! Q9 ~+ u Z( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)6 G5 z, N* T/ Y- {# P; c5 X
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen
6 D; c$ p- G& N: V7 Foise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as
4 D8 H9 b3 G+ G# j% sdesigning high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.
1 e5 }. x5 E. U/ O7 gA 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: I& S5 D9 C6 @- A) \" {( s
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
( Q, Q% O5 s$ x( |7 D# Qm eth od is valid.; v4 Z+ ^+ A6 Z% `% z
* m2 t# [1 k0 F+ Y! z1 q- P7 c( T2 i3 n- c
回覆後 可以下載PDF附件 權限10 & 3RDB. c4 Z2 l! Z: f* N4 G- x
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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