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最近在用HSPICE模擬PFD電路,9 [( R0 @7 A0 K4 @0 h+ ?
有試過用2個D型正反器的結構,) r8 L! w- @( C7 j5 ?2 F
還有TSPC跟HT架構,# r4 h6 |. |$ _4 |3 V
但跑出來的結果都不理想,甚至up跟dn完全就是錯的
z. V4 x* c0 w7 {不知道問題出在哪裡?
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6 q" b' e; q( {5 c***pfd***
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% c& K9 ?4 f- d* v.protect
6 w ]* @1 V) C. I.lib 'rf018.l' TT# k1 @& h Z* {; V$ d/ X4 E) @9 I
6 v% R. h6 g# [5 Y.unprotect2 M3 l; E$ A& r6 j
.option post
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6 G' n D' r4 ]* L- G7 [" M5 Dvdd vdd 0 1.8
) n. s- O0 X, ~0 Nv1 clk1 gnd pulse(0 1.8 1m 0.1m 0.1m 1.5m 2.5m)
+ a' @. F% X9 a3 P4 I% c2 \v2 clk2 gnd pulse(0 1.8 1.5m 0.1m 0.1m 1.5m 2.5m)2 z6 F3 w. p' l8 w8 p
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** part1 **
2 m: W* S2 |5 g4 L# ~MM1 a clk1 vdd vdd pch l=0.18u W=2u/ X' n4 ~; e6 o7 G6 P
MM2 a clk2 b b nch l=0.18u W=2u6 n9 c" W V! @. j9 t
MM3 b clk1 gnd gnd nch l=0.18u W=2u4 `" s# `9 ^) U
MM4 c a vdd vdd pch l=0.18u W=2u
+ t% [$ s2 h! O! I. ~MM5 c clk1 d d nch l=0.18u W=2u
: @/ h8 B9 c5 {) `MM6 d a gnd gnd nch l=0.18u W=2u
( W/ I {+ `: B( l* x, j% o6 |4 r4 mMM7 f c vdd vdd pch l=0.18u W=2u
9 _' }5 n4 ~1 C& T% W' s1 e9 b% yMM8 f clk1 e e nch l=0.18u W=2u- T4 i$ U# y$ S) u4 z- k
MM9 e c gnd gnd nch l=0.18u W=2u) B8 A) {8 l5 { j
MM19 a dn gnd gnd nch l=0.18u W=2u0 l6 m! N6 v! O, e. j$ }& q! A
3 O) ~; t. D9 w1 vMM21 up f vdd vdd pch l=0.18u W=2u8 B' j$ `+ E1 h0 b8 K# p
MM22 up f gnd gnd nch l=0.18u W=2u! g. X5 Z: H) ^$ y5 V% ~5 ~6 u
MM23 up g vdd vdd pch l=0.18u W=2u
5 M2 U( C; _, A# \. _MM24 up g gnd gnd nch l=0.18u W=2u# y3 V8 g8 l( R, q9 K- s/ u/ O
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** part2 **
1 W+ o0 g% W- e2 S s+ LMM10 aa clk2 vdd vdd pch l=0.18u W=2u
3 `6 O! n% s( rMM11 aa clk1 bb bb nch l=0.18u W=2u
; i4 |: ~' x2 R, t) nMM12 bb clk2 gnd gnd nch l=0.18u W=2u
* M+ n+ l7 g' a9 q8 |7 rMM13 cc aa vdd vdd pch l=0.18u W=2u
5 ?+ J7 }, n& M1 XMM14 cc clk2 dd dd nch l=0.18u W=2u
- v4 b, }: n; G9 D: UMM15 dd aa gnd gnd nch l=0.18u W=2u
/ A7 `. Q& ~% U2 D# H: h& zMM16 ff cc vdd vdd pch l=0.18u W=2u$ A! B6 h+ X2 z/ e* M
MM17 ff clk2 ee ee nch l=0.18u W=2u
$ w/ C1 z! ?! B1 V$ O8 l; Z+ lMM18 ee cc gnd gnd nch l=0.18u W=2u$ _' e9 G5 X) l
MM20 aa up gnd gnd nch l=0.18u W=2u
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MM25 dn ff vdd vdd pch l=0.18u W=2u1 C& R/ T4 h. {2 A/ ]
MM26 dn ff gnd gnd nch l=0.18u W=2u1 p. i) N9 c8 X* M% Q, O, j; M
MM27 dn gg vdd vdd pch l=0.18u W=2u: W9 A) \/ f( R! w: ]: C* ?
MM28 dn gg gnd gnd nch l=0.18u W=2u6 J8 L4 s+ ~: L# V: }" U4 v% {
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.tran 10m 1000m
3 T* j: B( A9 r) ?4 Z.print v(up)
$ W) X% b) w, I. ].probe v(up)
0 V3 m/ a- `; h- b& w.print v(dn)
6 G; v+ A. U5 N# e$ l8 q$ T5 Z, v.probe v(dn)
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* E! y/ C" p+ i. m8 s上面為TSPC的程式碼
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拜託大家了1 d* k! @4 n+ @0 _ S) s
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