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Design Method in Optimization Differential LCVCO: s9 Z9 N5 J8 A! x" {1 n, r
MAN J ia-han,ZHAOKun
7 H- @/ c( p' d7 K+ p/ p; Q6 t* D( _: i( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China), `9 K* }% k; T% O
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen
% c' m! Q8 O' Xoise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as
5 x/ U/ x6 v2 T6 pdesigning high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.
# o1 b6 e! C* s5 |# g! zA 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 result3 O, t) n1 j2 u* Q8 o4 U
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( Z: ]7 V9 C' g S) V
m eth od is valid.
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+ \/ R L+ }- S3 Q' M回覆後 可以下載PDF附件 權限10 & 3RDB1 q# `. `9 V6 n7 h% w" @8 ]/ ~ L
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4 H* t: r- f# f- z( b) S7 c' b3 f% c[ 本帖最後由 sjhor 於 2007-5-17 10:26 PM 編輯 ] |
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