差分LCVCO的設計方法[簡]

sjhor

Design Method in Optimization Differential LCVCO
MAN J ia-han,ZHAOKun
0 {5 t* n- n) Y5 j0 [( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen
oise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as
designing high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.
( I/ q) O. G7 t0 |' r* u2 hA 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
- L' ?, z. W+ ~, a+ e" |9 o8 v3 ^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
m eth od is valid.
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. G( x, W! p* u[ 本帖最後由 sjhor 於 2007-5-17 10:26 PM 編輯 ]