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Design Method in Optimization Differential LCVCO
$ t. D0 m& r6 y1 w: T' a1 gMAN J ia-han,ZHAOKun
& X5 }/ |6 t2 ?/ X" R+ _3 [( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)2 a9 W1 t1 _& T0 `5 ^
Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen5 w+ l8 _. h9 ]& C5 \0 i% k
oise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as8 l6 D% Y* ~+ _( {% p+ G0 e, \4 N( Y
designing high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.: _7 ~7 x* A. p. J
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
4 n8 O" z* P; V7 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
; j0 Z* D2 _/ v0 U( p+ Pm eth od is valid.5 _* @, j: }$ M# w# W
) v, @3 ?& C/ n/ _& N7 r
8 _; R$ a2 t* X7 ?( f2 Q/ M1 @4 l回覆後 可以下載PDF附件 權限10 & 3RDB' Z( f2 J1 N3 M5 F
# g5 U1 y+ d5 D. p2 C+ Y, F
6 i) d! I h; h[ 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