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請問各位大大
! J; W9 g5 t# X4 O$ }: W6 u如何下HSPICE的語法,得知OP的-3db頻寬???0 f( D0 G" ^: ?8 f" \
我知道OP的gain,uint_gain跟phase與法如下:, ], t. {0 y# U6 ]4 ^6 `1 p/ `. y
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.meas ac uint_gain when vdb(out)=05 i5 \) r1 f! W. Z" Z
.meas ac phase_p find vp(out) when vdb(out)=01 Q' j4 Q$ b% \: R8 O
.meas ac gain max vdb(out)1 l8 n+ e* S: e- C; h
8 t/ I% Z; I! p7 H6 V# \但是-3db頻寬的語法要如何下ㄋ?2 D- i6 k2 W" v( Z8 {$ P
我用
- x: o7 ^; L$ C9 w* h; |2 x9 x8 C.meas ac -3db_bw when vdb(out1)='gain-3'
L. {% Y# R ` D5 | t.meas ac -3db_bw when param='gain-3'5 U2 `/ A7 [/ J6 t3 A1 s! v6 u! y6 T
都不對
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, k( V7 A! ^# G, O7 _5 ~請各位大大敎教我吧!!感激不盡 |
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