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Design Method in Optimization Differential LCVCO/ W* V3 C8 W, ~* |* y' S
MAN J ia-han,ZHAOKun/ f0 a& L2 r% }
( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)* ]# a. Z6 W7 V N8 E
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen
4 f9 s* K& Q9 I. ~3 |oise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as3 J8 D$ J) f* h1 [& U, p. ~
designing high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.
, w+ N! u. x7 ^" r. K# h+ m, V1 n& sA 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
" e1 x( d$ ~( h: { wdescribes 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
- W2 Z) D% U8 u, g: L( bm eth od is valid./ ~; _- ^7 q& c/ k( @ f: ]$ b9 L
9 u: R: j3 V4 Q" C8 {& g U8 m+ u$ f
回覆後 可以下載PDF附件 權限10 & 3RDB. Q9 R/ O+ }$ v: V
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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