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Design Method in Optimization Differential LCVCO
) t, {/ a. @5 H0 P2 i, m7 VMAN J ia-han,ZHAOKun
2 {6 H$ f( G/ @1 q( ] R4 ~( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)8 A# ~. I% A T' E& b
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen$ Y& y. S: K& a8 U
oise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as* k! U5 `# m+ n8 v
designing high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented., n1 o# W& R9 \: _, U
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
0 L+ [6 d' h" Y& [0 Q1 L5 rdescribes that the phase noise of the V C O is - 120.4dB c/H z@ 600 kH z. T his result proves th at the3 f7 Y, t6 y0 ~0 d9 q [6 |# F D
m eth od is valid.* \+ P( W1 h, B$ I, D
$ _6 |$ G$ A r- w3 m5 `$ _7 z! T$ G, v; o) |
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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