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*capdelay
! m) F+ R' o/ V q5 b [.option scale=90n. L2 V' n% U' a# G
.param SUPPLY=1.8$ o' ~" |7 n M" W! e3 o( @
.lib rf018.l TT
& J9 g2 r; t$ L& k3 `8 ?6 {.option post
# s2 N2 k* ]- p.global vdd gnd
, j: s* @% c0 d1 x0 @9 B.subckt inv a y
* ~% _7 O2 E& F- h1 v% W7 tM1 y a gnd gnd nch W=16 L=2 AD=0 AS=0 PD=0 PS=00 }5 v+ r5 L7 K% ]3 w$ V
M2 y a vdd vdd pch W=32 L=2 AD=0 AS=0 PD=0 PS=0- e P! G& D- L8 h+ X& P6 K
.ends
8 | ?' B: M7 c+ K& I/ tVdd vdd gnd 'SUPPLY'
s( D1 G0 [ K$ O: |- @Vin a gnd pulse(0 'SUPPLY' 1ns 0.5ns 0.5ns 4ns 10ns)
7 U' V8 w- @* f7 e/ r7 [X1 a b inv
' U9 |6 @" U$ H2 xX2 b c inv M=4$ M' a% s. k- C0 b7 ^
X3 c d inv M=8, Z# p/ P% H& r' s, @
X4 d e inv M=32: V& O& r6 {' a* l# e4 H, Y: N
X5 e f inv M=128/ s* j$ i, Y" R# I; U1 u: ^
X6 c g inv M=8+ F- g; Q; n; C' y6 }' o0 Y
cdelay g gnd 'CperMicron*32*(16+32)*90n/1u'
8 }& Y& \/ N& G6 r( x& X.measure errorR param='invR - capR' goal=0# R5 E2 a( x5 h- x, h
.measure errorF param='invF - capF' goal=0; U$ \/ q; R. Z3 h* z5 I
.param CperMicron=optrange(2f. 1f, 3.0f) _$ y: y6 b5 F5 p5 G; l$ \0 m# m% @
.model optmod opt itropt=30
4 E% N1 \6 B, R) i7 q9 g8 R.measure CperMic param = 'CperMicron'% ^: D* P; H! I, ?6 s3 `+ D
.tran .1ns 12ns SWEEP OPTIMIZE = optrange RESULTS=errorR,errorF MODEL=optmod. T5 y- l: ]' V$ r8 r# _
.measure invR& Q- q4 T) y# A& l% }2 k! Q
+ TRIG v(c) VAL='SUPPLY/2' FALL=16 E8 W2 s2 f" j7 ]8 @: y
+ TARG v(d) VAL='SUPPLY/2' RISE=1
8 u1 T! ^% G: y2 |, I.measure capR
, q9 U& X/ h: j+ TRIG v(c) VAL='SUPPLY/2' FALL=1& y) G2 F" v0 F9 X: o# I9 L
+ TARG v(g) VAL='SUPPLY/2' RISE=14 }# j& m4 n9 L: l" }
.measure invF+ a5 D6 \9 ~- i A3 C7 u9 X
+ TRIG v(c) VAL='SUPPLY/2' RISE=1" L+ Z0 _: S! R2 L1 |
+ TARG v(d) VAL='SUPPLY/2' FALL=1# c# w1 D+ Q& _+ Q7 R7 d" r5 j9 F; ^0 E7 ]
.measure capF
4 J" X9 ?' F" H% L( Z' A' w+ TRIG v(c) VAL='SUPPLY/2' RISE=1' s( U2 E- t/ m5 [: p9 k
+ TARG v(g) VAL='SUPPLY/2' FALL=1
3 `6 n: x) ?; z9 V5 R, Q.end
! r8 ^ P/ S$ q7 O
0 t' @8 z9 Z1 t這是我參考書上直接打下來的
h4 a9 r" f3 @/ c# J有些地方程式為什麼要寫成這樣有些不懂$ v; X5 ?5 ~! ?' K# r; F3 o, E ^
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?
$ j4 o7 v! u0 F& e還有.lib rf018.l TT 後面的 TT 是什麼意思?
; B! d8 w1 ?* q7 [/ _7 o. `; c為什麼要選用TT, TT 代表的意思為何? |
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