|
Design Method in Optimization Differential LCVCO
9 a) h. g0 U1 WMAN J ia-han,ZHAOKun. k* u# g$ p# H
( Institute of Microelectronic of Chinese Academy of Sciences, Beijing 1 00 0 29 , China)
: o, ^+ Z) T6 {; Q5 ?Abstract:A n analysis of tw o fam ous oscillator phase- noise m odules derives the relations betw een phasen- \6 Y1 d1 ~& U
oise and circuit param eters. A nd hen ce, a design strategy to optim ize the phase noise of V C O , such as
3 A; T3 }; n( y' X9 h8 w( ]designing high Q inductor, adjusting tail current and sizing the dim ensions of nM O S and pM O S, is presented.
M0 Y- P! S4 \9 `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
+ Q3 p1 {0 g5 ~+ Adescribes 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
/ B$ u, G% k- ], X( Om eth od is valid.2 A" R) F, g3 L3 L
( t) e! `' s2 x8 V+ C8 T# D* x' I* w/ c8 Y" `$ }
回覆後 可以下載PDF附件 權限10 & 3RDB
! S/ u0 M1 x& ^4 l; i- Z+ c6 H( T& H: I$ A& l) p: w
1 L2 t' V' Q( f# i3 S[ 本帖最後由 sjhor 於 2007-5-17 10:26 PM 編輯 ] |
本帖子中包含更多資源
您需要 登錄 才可以下載或查看,沒有帳號?申請會員
x
|