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Design Method in Optimization Differential LCVCO
: r5 Q# O9 x) b9 hMAN J ia-han,ZHAOKun9 G, Y3 T! }8 _: P/ u1 E8 s0 ]
( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China) J4 G. O- T9 H4 T7 M8 b' f& F
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen& H5 o3 v( e/ T
oise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as+ N! o0 P. r6 u# ^: l l
designing high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.
6 \# G/ d* w8 K; {2 {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 i1 O$ M5 ], vdescribes 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; J/ B6 l9 R9 [+ H
m eth od is valid.. }) \ j3 g) [ g% P
9 [- {* H% t6 v( x7 ?
3 U$ v+ g3 D- H
回覆後 可以下載PDF附件 權限10 & 3RDB
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! A2 F+ N1 l0 C/ ~7 D0 j 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