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Design Method in Optimization Differential LCVCO
+ ~9 k3 W' a% _MAN J ia-han,ZHAOKun
r% v: O, G) D6 s8 I" I( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)
( Q1 ]/ c6 C+ M3 V3 fAbstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen
1 F2 w9 e( u0 V/ joise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as
& Y& u+ g# \* [$ m2 Pdesigning high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.# Z: ~7 |6 c1 W9 L( w4 e$ a
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
, v$ M: B0 V( Z0 wdescribes 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' m8 t: v- y, Z, t0 B
m eth od is valid.+ f" o5 R, B/ P! ~, p: ^
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回覆後 可以下載PDF附件 權限10 & 3RDB
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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