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Design Method in Optimization Differential LCVCO
+ e% h' z3 t- H( YMAN J ia-han,ZHAOKun
% r$ F$ @" `1 N4 X( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)# {# o) J1 K" _- J8 M8 `6 C
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen
d. ]8 \; m5 ?: \$ E9 W5 eoise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as
5 z/ G+ F! t; m+ h$ ?designing high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.
6 m% c' a& ^. \7 I& }' e9 e) ?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& A0 d# `7 g$ s4 V2 X% C
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
* P0 A& k7 y/ j) D& v% M8 t- y; um eth od is valid.
9 s! t$ o. Y: Q, s( C, j1 H8 C+ ?9 V6 g- i" @
% I/ x# Z. O$ Y5 r回覆後 可以下載PDF附件 權限10 & 3RDB
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0 A" ~' r4 r" x1 U6 E[ 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