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*capdelay
+ l) { s7 q5 X" ?, l% S8 X# C1 u) X.option scale=90n
6 [) s3 h8 s( Z5 d.param SUPPLY=1.8% m6 Z# @6 K, Z& L( a+ b
.lib rf018.l TT
2 F1 |- S- @9 j! {5 @& f.option post
9 g I3 u7 S! Y+ C.global vdd gnd P7 M* {( c2 X1 u
.subckt inv a y
, f' r8 h% d! |M1 y a gnd gnd nch W=16 L=2 AD=0 AS=0 PD=0 PS=0, L2 S+ W# |6 m! U0 y) D0 y3 i! H, g
M2 y a vdd vdd pch W=32 L=2 AD=0 AS=0 PD=0 PS=0! r# k9 @7 H. q( @, N' M+ I" U, K
.ends: S, H) S% l& `, U$ M% C# Y
Vdd vdd gnd 'SUPPLY'
2 n9 S( O8 D4 ]3 J9 qVin a gnd pulse(0 'SUPPLY' 1ns 0.5ns 0.5ns 4ns 10ns)
, V. \$ n; n; i! |; Z( m1 JX1 a b inv0 q3 y! g. {7 M4 g3 h7 I
X2 b c inv M=4
+ L; a0 U" ]+ J8 lX3 c d inv M=8/ \/ z) ?, I- C. ^5 F5 C8 F8 F
X4 d e inv M=32
# e8 a6 [. ^2 a9 T. fX5 e f inv M=128
( U& u- t `; E7 h5 T7 c2 rX6 c g inv M=8! x2 r( _% s1 ?- O9 S6 F0 `
cdelay g gnd 'CperMicron*32*(16+32)*90n/1u'8 ~$ n$ v$ G# o* A2 y1 ~0 `
.measure errorR param='invR - capR' goal=0
% ]8 y; {5 l8 {; e K6 A.measure errorF param='invF - capF' goal=0
, a- J* \$ _5 r.param CperMicron=optrange(2f. 1f, 3.0f)+ R3 C K3 M+ l0 C; F* l" e- S ~
.model optmod opt itropt=304 j0 \: ^' a& Z8 c+ G7 m; B
.measure CperMic param = 'CperMicron'
: c6 I) R4 V4 P& s.tran .1ns 12ns SWEEP OPTIMIZE = optrange RESULTS=errorR,errorF MODEL=optmod) [+ o$ H. w( E9 c' o, j8 f
.measure invR
& W6 M1 p/ ]+ r0 y7 I( X8 U/ e1 G1 H& o+ TRIG v(c) VAL='SUPPLY/2' FALL=11 S3 g) t7 c* l$ x; r. G+ K
+ TARG v(d) VAL='SUPPLY/2' RISE=1
1 E' P" G6 K/ M& q" r2 g" B9 X, ~.measure capR
5 k4 C* `2 a! s4 p+ TRIG v(c) VAL='SUPPLY/2' FALL=1* @" n6 I! L- X9 x
+ TARG v(g) VAL='SUPPLY/2' RISE=1* ?9 j4 e( Y: U# c. X
.measure invF
9 g9 X M/ D1 P& }+ TRIG v(c) VAL='SUPPLY/2' RISE=17 W X* b# k; {% q3 }) W. a
+ TARG v(d) VAL='SUPPLY/2' FALL=10 N7 Z0 j1 D1 U0 E
.measure capF
4 x3 Z9 E; ?7 ~4 s# k) D+ TRIG v(c) VAL='SUPPLY/2' RISE=1' \2 o. p: L- L- W& \' T2 L6 d' @5 n
+ TARG v(g) VAL='SUPPLY/2' FALL=13 t8 |$ Z3 d6 P2 k: u9 j+ K# `# t
.end
% r$ _! h/ N5 B$ y: g
- l0 S- Z: a% t5 `" @/ j這是我參考書上直接打下來的
' x- h2 v7 E2 X8 }: L4 c有些地方程式為什麼要寫成這樣有些不懂5 k" z3 z/ J, N+ T6 N" r
從cdelay g gnd 'CperMicron*32*(16+32)*90n/1u'這行以下,可以幫我解釋一下每行所代表的意義嗎?" j" n1 i7 {3 z3 C8 @" A
還有.lib rf018.l TT 後面的 TT 是什麼意思?+ _/ R8 Y. @9 R! x" }
為什麼要選用TT, TT 代表的意思為何? |
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