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Design Method in Optimization Differential LCVCO# F& p9 P) x# ^2 ?: \4 M; p
MAN J ia-han,ZHAOKun- { B' n- D: d2 G& X- e% F, r
( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)
( D3 A9 ?6 V& c" c% W- }Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen a3 Z: S; ]: ^5 @/ S" h( v
oise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as
~4 v, f0 s$ M- E* r# @( O8 S( y: l" `designing high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.9 E7 l3 N' r# h- V+ x! k9 O
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& g1 d6 N, K9 H/ \: I( k" x& r ]3 O
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 the4 C* U2 s* k, k* i
m eth od is valid.$ z* G: g3 W" F4 L3 f4 b
' F0 u( d! H, Y4 o
2 ~! ?& Q- t4 V) x( X! A9 g
回覆後 可以下載PDF附件 權限10 & 3RDB
$ J7 t. c: J: M9 r# z7 B/ h# e3 d4 x4 {
+ f1 E. x* t. n# p$ p$ |[ 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