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Design Method in Optimization Differential LCVCO$ B& L, L& l8 y a9 u. s2 k
MAN J ia-han,ZHAOKun
0 Z2 y# _7 B% M7 K0 z' ?( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)1 f2 \' E- ~, f6 D5 N- b0 r) m- i. Q
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen6 C- T1 \3 R0 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# M4 \$ m& u1 b8 H
designing high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.' H1 M* C5 [" V# d! N; v; r
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
: C7 u0 y; n2 Sdescribes 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# n/ V! k/ l: n
m eth od is valid.
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& R/ a f3 y N4 [回覆後 可以下載PDF附件 權限10 & 3RDB
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1 d/ k( R6 t* ~$ A, O[ 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