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Design Method in Optimization Differential LCVCO
# z) m/ x8 y! b1 d. I# lMAN J ia-han,ZHAOKun/ r# {$ ]& \* D+ R# i% M
( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)2 b! T! z# S1 Y2 V
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen @9 O" P7 E" }( x) y" M+ |- j
oise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as1 T/ W# M4 X( o# ^4 y+ Q
designing high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.
" A( T9 n9 Y7 Z2 |1 IA 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 result8 r2 M5 f9 t/ ?& I" U
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
2 X1 d' ?' U0 H" x5 Y5 Ym eth od is valid.* p; O/ G' q4 a Q5 g" D# x" h
N0 J$ p3 i! G9 m; P( N
2 B( U. L; r: ?7 ?
回覆後 可以下載PDF附件 權限10 & 3RDB
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6 [5 {5 ^+ O" }- r4 \[ 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