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Design Method in Optimization Differential LCVCO& x& v) E8 S6 b& k- C2 t+ Q6 L
MAN J ia-han,ZHAOKun7 d! e. X# s5 f& e
( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)) t( `7 S7 J! G. l2 q
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen9 c5 D- X _* c
oise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as
/ C. x: ]* s5 C5 M# Gdesigning high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.* @9 |: N$ P/ ^. W& Q- z, |
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
+ b* x y/ e) S0 o2 ~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
0 Q! z3 G$ C: i5 t ^m eth od is valid.
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! a. u: W" }. k# k6 ^, z+ A回覆後 可以下載PDF附件 權限10 & 3RDB8 B, }7 m ?" J5 h- N
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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