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3#
樓主 |
發表於 2007-9-9 15:58:58
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只看該作者
這是小弟寫的SPICE的 netlist 檔,接法應是沒錯,因為跑出~up和~dn波形是對的 ,( W# \6 @( K4 y5 ?: b" {- D% Y
但是就是不會寫程式碼使之有可以用 deadzone的圖形
" F5 r7 P5 B7 C! s1 R* h# l" H" W還有電路圖,2 P0 n7 m3 S2 r% L
試了滿久還是試不出這個圖形,麻請高手們,可以寫一下如何跑出這波形) \" P" f3 k* [
還有小弟是新手,以下有錯的地方請大力鞕....謝謝指教
! A b5 r7 H& x. Y0 y A4 I**********************************************************************4 w% O! {8 e/ L, t* W
.PARAM phaser=0ns phasev=0ns $定義參數7 }4 V1 T. k9 Q4 ^
.PARAM phase_error='phaser-phasev'
+ T) g2 Z$ H! b+ }+ a% h' k.GLOBAL vdd
/ J5 {0 @7 y4 F, Evrbar rbar gnd pulse(0 3 phaser 2ns 2ns 48ns 100ns): P7 K9 k7 F+ H) e
vvbar vbar gnd pulse(0 3 phasev 2ns 2ns 48ns 100ns)/ e1 y% C6 G0 B0 I. @
; R% n S' q: A+ r) f6 D7 C U( u# p/ G3 f9 ^& i |) n
***************************** main circuit ********************************. N8 z0 j& E! _1 Q2 \
vdd vdd gnd dc=3v4 T; h# S3 K: S7 J
Rrbar rbar gnd 100g! k7 [' ^7 R4 `& d
Rvbar vbar gnd 100g/ m( M2 D7 }- F% Y" L- M( G2 G$ l
xnand21 rbar 1 2 nand27 n5 X* w! h8 D; v
xnand22 vbar 9 8 nand2
, I, r& k- _4 [- R# jxnand23 2 3 upbar nand2
6 \9 g, w4 {! W: O% z/ |xnand24 7 8 dnbar nand28 E- A! [8 f+ G5 r y, J( n: W! r
xnand2a1 2 4 3 nand2a. Z3 v. F2 k$ i) }9 Z$ l
xnand2a2 3 5 4 nand2a
+ u8 g8 u. h/ w5 _/ O! xxnand2a3 5 7 6 nand2a
4 Y$ u) }/ B6 X% G8 j pxnand2a4 6 8 7 nand2a
r ?- p/ J3 B6 S @0 Kxnand31 2 3 5 1 nand3; h5 s1 @: _) L
xnand32 5 7 8 9 nand3% m6 g8 R" a t5 j! u% o
xnand4 2 3 7 8 5 nand4
/ P7 p- ^5 ?; H1 R/ z! j- w7 A# pCL1 upbar 0 1ff
5 x, W* h, `7 y7 j0 S& RCL2 dnbar 0 1ff
- g3 o! `# B# } R( n6 y) d# d! }/ ] v$ D2 m
********************nand4*******************************. u: B' d2 @7 F3 h5 g" a
.subckt nand4 in1 in2 in3 in4 out
/ \$ z/ B' R: q- J2 u m1 vdd in1 out vdd pch w=0.8u l=0.35u/ c4 r( i! i; o/ q7 ^, s4 }, T
m2 vdd in2 out vdd pch w=0.8u l=0.35u7 w8 H; U# E' o7 v% d* U6 R
m3 vdd in3 out vdd pch w=0.8u l=0.35u; @4 U7 Z, |5 V, ~# J6 S, R' v
m4 vdd in4 out vdd pch w=0.8u l=0.35u
7 W6 G/ f2 j9 f: p' n- } m5 out in1 1 gnd nch w=0.63u l=0.35u' j6 {4 Q" T7 ~
m6 1 in2 2 gnd nch w=0.63u l=0.35u$ I# W/ O* t/ g" \
m7 2 in3 3 gnd nch w=0.63u l=0.35u
; T0 ?, v" m) S3 I! q m8 3 in4 gnd gnd nch w=0.63u l=0.35u
# Z$ M& n; q! [) k7 j0 _% S.ENDS nand4
/ Y8 Y+ g2 y! Q
# u4 ^2 @) c c7 W8 y, ~: ~$ l********************nand3*******************************9 j. y& o( P6 d* R3 R/ \/ Q
.subckt nand3 in1 in2 in3 out/ a- d+ C( r# S5 k' ~' _
m1 vdd in1 out vdd pch w=0.8u l=0.35u/ T4 d' I% F* G" Q0 x
m2 vdd in2 out vdd pch w=0.8u l=0.35u
$ t8 s) D5 _0 [ m3 vdd in3 out vdd pch w=0.8u l=0.35u
3 t/ B- F% j, l2 u! k m4 out in1 2 gnd nch w=0.53u l=0.35u
- n A, R4 K* p2 _4 j- {$ M m5 2 in2 3 gnd nch w=0.53u l=0.35u. i% {- M$ u& C8 r& c
m6 3 in3 gnd gnd nch w=0.53u l=0.35u5 }# j% [. T; R+ [: ~! I
.ENDS nand3
" r+ `0 u- v& c' U8 `5 c8 @6 Y! j
2 M7 z; y. t4 B/ ~" `7 N3 _********************nand2*******************************8 v* o8 B2 \- ?8 ^! |9 A) e
.subckt nand2 in1 in2 out
5 z6 ~. q$ H* G( t4 G0 v' f3 v4 U m1 vdd in1 out vdd pch w=0.8u l=0.35u
, k+ f0 q5 k8 ^# ^/ \) o# s m2 vdd in2 out vdd pch w=0.8u l=0.35u. ~( r+ s; G. [4 J+ D
m3 out in1 1 gnd nch w=0.4u l=0.35u
; Z# a- B+ p. n: j4 B m4 1 in2 gnd gnd nch w=0.4u l=0.35u! D+ n2 X) ?% b ^
.ENDS nand2. v( B' y# h. p& Y, k
4 I1 p! T( c4 O3 v: `- W" W********************nand2a*******************************# Q+ e" R6 `* b& H4 T& g, i7 N
.subckt nand2a in1 in2 out7 r$ ^8 k6 \0 s- g% b' i
m1 vdd in1 out vdd pch w=0.5u l=0.35u2 I* C' B+ \& _0 a1 }- a3 v
m2 vdd in2 out vdd pch w=0.5u l=0.35u3 h/ k. X$ i7 j$ P7 {# v
m3 out in1 1 gnd nch w=0.5u l=0.35u: z# {: b1 O- a- s k1 ]0 S
m4 1 in2 gnd gnd nch w=0.5u l=0.35u& `0 y7 Y: F. r! b0 D$ y) t
.ENDS nand2a7 O6 K& l# B( R# {$ w" ?
3 S i0 r* O7 t, h1 ]& s* ^0 n********************************************************
+ {7 Q' n' K( s, M4 Y.op8 {8 _# T; Y2 ^7 W0 |3 K& v9 O
.probe I(cl1) I(cl2)
; W1 C& e! ?0 _% R.tran 0.01ns 500ns sweep phase_error -100ns 100ns 1ns 1 R5 g( z0 z. @7 f! b. g
.maes tran avgI1 avg I(cl1) from=100ns to=100ns/ T, [2 ^% X. `, N! J& M
.meas tran avgI2 avg I(cl2) from=100ns to=100ns T( v# W, F6 a( i- d
.meas tran cpI param='avgI1-avgI2'
# y8 l; t' ~2 c8 ]: _4 v& G$ o0 ]+ ], Y: C! d
.end |
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