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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 ,/ g$ w8 E+ K. y9 L K+ y
但是就是不會寫程式碼使之有可以用 deadzone的圖形
# |/ o( C+ I' I! U. X還有電路圖,- f r9 G4 {) K: {% V1 G# N; d
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
( d6 x2 h8 X, W( a+ S% E2 o' h0 E還有小弟是新手,以下有錯的地方請大力鞕....謝謝指教
; o2 |3 W- b" f5 q" R**********************************************************************9 P* |( a; I* N: R* k
.PARAM phaser=0ns phasev=0ns $定義參數3 a4 [7 I7 }6 `( J
.PARAM phase_error='phaser-phasev'
6 H: _, Z1 p9 {.GLOBAL vdd
@2 Q0 |2 J. I* r8 F" v5 Ivrbar rbar gnd pulse(0 3 phaser 2ns 2ns 48ns 100ns)
5 Z* J" e* z. a+ R' `. V2 Tvvbar vbar gnd pulse(0 3 phasev 2ns 2ns 48ns 100ns)
& W1 W4 B2 p% q' ?- p5 e# O
5 X& B$ O% }4 `: v5 k/ ?7 {6 `6 ?
***************************** main circuit ********************************
: _: J0 Y* ~/ [2 }5 V0 S8 b; ovdd vdd gnd dc=3v4 v& E+ C" [# B
Rrbar rbar gnd 100g9 v9 o# }1 w8 ]4 l$ Z9 |
Rvbar vbar gnd 100g8 t- E& y' u# I; z; K
xnand21 rbar 1 2 nand2) H/ W( d$ E% A, }
xnand22 vbar 9 8 nand2
7 i- y; r0 n8 U* o0 D0 y9 ], }xnand23 2 3 upbar nand2; B# _$ H* {3 c
xnand24 7 8 dnbar nand2
# I8 I0 S: H9 [+ p, R/ c2 c& txnand2a1 2 4 3 nand2a+ h( N* e% g+ H; r+ D
xnand2a2 3 5 4 nand2a
' ]) Q9 T; ~; K2 J" b2 J! \xnand2a3 5 7 6 nand2a+ H7 L1 L3 s# d/ T9 E
xnand2a4 6 8 7 nand2a
: W& d& n i9 t+ e! [xnand31 2 3 5 1 nand39 w1 ~5 t/ e. g' F) y1 ~7 M; y3 p3 d
xnand32 5 7 8 9 nand3& t# N- W6 q# Y% k1 S" F
xnand4 2 3 7 8 5 nand4/ h' `' |: m- t7 m* c: Q
CL1 upbar 0 1ff% o* P4 j& T: S& H
CL2 dnbar 0 1ff: {1 H4 L4 U$ f: [5 W! K6 R- t
: C- _/ K) n# q9 \( Z********************nand4*******************************6 v X" \& T+ i1 y. d% e5 C5 S
.subckt nand4 in1 in2 in3 in4 out/ e8 k F: i9 t/ @0 {9 O
m1 vdd in1 out vdd pch w=0.8u l=0.35u' b7 L: m u: }1 A4 [
m2 vdd in2 out vdd pch w=0.8u l=0.35u& o7 X* \% {7 I5 @ A
m3 vdd in3 out vdd pch w=0.8u l=0.35u: b9 u8 e9 f" j1 C0 ~1 b0 K/ i9 }
m4 vdd in4 out vdd pch w=0.8u l=0.35u
2 s& R, e( k& y m5 out in1 1 gnd nch w=0.63u l=0.35u% W& k( X: I ~: t2 r% s
m6 1 in2 2 gnd nch w=0.63u l=0.35u
. m# n6 n& U. d5 W m7 2 in3 3 gnd nch w=0.63u l=0.35u
. O: {+ W3 \% K( C7 ~( p m8 3 in4 gnd gnd nch w=0.63u l=0.35u
5 y% X, Q+ \$ n6 \.ENDS nand47 k5 a P! b' ?* ?+ o# F7 {
' A: z) a2 p: N! ^0 Z2 u
********************nand3*******************************7 e$ O b; s, e& W$ O. a( n5 V
.subckt nand3 in1 in2 in3 out
5 W3 G. T5 w- @) \3 g7 s" ~3 } m1 vdd in1 out vdd pch w=0.8u l=0.35u5 p& M2 v3 \/ U8 o( k
m2 vdd in2 out vdd pch w=0.8u l=0.35u- r8 Y9 }" E- F# W0 ?
m3 vdd in3 out vdd pch w=0.8u l=0.35u: W# H9 z4 B* B3 Y: s+ t7 O
m4 out in1 2 gnd nch w=0.53u l=0.35u
4 N% D8 D4 c5 S- k m5 2 in2 3 gnd nch w=0.53u l=0.35u# c2 x0 Z6 T j8 X2 ~* j
m6 3 in3 gnd gnd nch w=0.53u l=0.35u
% z' ^/ g$ N# }+ e8 P.ENDS nand3
% H) S) s; h. Y
" ^* h% e# r; w' |/ L; g. J$ ^0 d- g0 v********************nand2*******************************
$ T% f4 a1 {- u3 P- ^6 i.subckt nand2 in1 in2 out
2 V7 a" f( t f* j* C O; e% M m1 vdd in1 out vdd pch w=0.8u l=0.35u) \# Z2 g3 m! V- S8 b
m2 vdd in2 out vdd pch w=0.8u l=0.35u" t7 w$ a3 n! `- C' l8 H
m3 out in1 1 gnd nch w=0.4u l=0.35u) s5 o9 R* _: T' S5 G' w4 n6 {
m4 1 in2 gnd gnd nch w=0.4u l=0.35u, f1 P9 x& p0 k# C
.ENDS nand2# L' I; B! ~& O, B, ~& C6 Q
# `! @- Z0 i s! d0 Z
********************nand2a*******************************
$ {5 m! v: S5 x6 H; }; V) ~. ?.subckt nand2a in1 in2 out
9 k" `8 K* } D' J& t m1 vdd in1 out vdd pch w=0.5u l=0.35u: r- N* t& Z6 O! U
m2 vdd in2 out vdd pch w=0.5u l=0.35u
6 n; _: R7 u' Z. c6 A( x m3 out in1 1 gnd nch w=0.5u l=0.35u
, {* G- L3 I9 _8 E. J3 M m4 1 in2 gnd gnd nch w=0.5u l=0.35u1 c* w3 q1 O2 b
.ENDS nand2a
# Q' S/ g: R4 [: b0 q5 }- p
# ~7 m' N$ S5 A d3 u/ q5 |********************************************************
0 ?# q& U6 p' C# _. ~2 v0 O2 I.op- {' T# \2 X, j7 m
.probe I(cl1) I(cl2), m* S0 K9 k. b" G& S T+ {
.tran 0.01ns 500ns sweep phase_error -100ns 100ns 1ns
$ J% O7 b# M v3 i.maes tran avgI1 avg I(cl1) from=100ns to=100ns" [7 k7 c' Q3 J
.meas tran avgI2 avg I(cl2) from=100ns to=100ns
L, M0 \8 z5 Q( j.meas tran cpI param='avgI1-avgI2'! c- k; N% W* H' G1 H5 H; l
1 m2 Y }! u5 q) X5 s0 D9 I
.end |
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