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網絡上找到的1 }7 o9 k- H; Q( D8 C6 P: T* p
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* lm386 subcircuit model follows:
3 ^) G9 Z- y( @0 M$ p+ M
4 Q3 d% \$ \4 Z( k; t( j************************************original* IC pins: 2 3 7 1 8 5 6 4$ u" b! r% K' {: l6 v9 F9 y
* IC pins: 1 2 3 4 5 6 7 8
% c" p9 j8 c# p: I' Y8 Y1 L* | | | | | | | |/ \+ Z2 @3 [" T+ B
.subckt lm386 g1 inn inp gnd out vs byp g84 U+ n+ |5 v1 ?0 b$ [
************************************original*.subckt lm386 inn inp byp g1 g8 out vs gnd
1 q, e; r, ~# ^: x ' _0 ]! H" \$ k+ X* ^
* input emitter-follower buffers:
9 [. }9 Y9 p3 A, ]& s9 v2 \ 8 V; h5 s2 a6 g! I& ^
q1 gnd inn 10011 ddpnp
9 W5 y) b3 }( _r1 inn gnd 50k' E$ }4 ~" ?+ R' o9 A; ]/ l* X% U
q2 gnd inp 10012 ddpnp; y, m. r4 b: Y2 J; [4 A
r2 inp gnd 50k
& s8 E, p. q/ y9 H1 I / w6 t, i# I* ? A- ~$ v
* differential input stage, gain-setting5 K& r# t* l: F, q7 Y3 x
* resistors, and internal feedback resistor:
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q3 10013 10011 10008 ddpnp
% `+ O( ]% D4 U! vq4 10014 10012 g1 ddpnp
# R# c+ |3 G' ?# U: y% Ur3 vs byp 15k+ F8 k7 @/ j7 Q# s8 O* g
r4 byp 10008 15k
, w( d w+ |$ P( z) c, jr5 10008 g8 150- T/ x7 Y N9 R4 O+ F7 l O
r6 g8 g1 1.35k
" m) |. r7 r# s0 g6 `/ o! Lr7 g1 out 15k
8 i: X9 p* D4 N4 j0 r, Z4 z) U 5 C4 c9 f! l: P% h+ p* \1 H7 T+ B/ Z
* input stage current mirror:
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q5 10013 10013 gnd ddnpn' B, E& z, T0 H8 s4 U4 _
q6 10014 10013 gnd ddnpn
`: a. W% d* H' p& k! }8 [
9 _9 u" K2 s! ~% y# L* voltage gain stage & rolloff cap:3 s, l4 E& L0 S9 J8 e/ e4 B. e( U
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q7 10017 10014 gnd ddnpn
; s7 j& \4 a* }8 h. ]c1 10014 10017 15pf. m0 m4 T2 A( R0 t# @
) Y6 W1 ?) c" K; C* current mirror source for gain stage:, `% C2 e% c1 P+ ^: g& @. K8 ]5 n
4 a- j+ H: w$ l1 D0 n
i1 10002 vs dc 5m
* S( s5 ]! b- O Z( S o, d0 @q8 10004 10002 vs ddpnp; J* e3 B0 J j2 g
q9 10002 10002 vs ddpnp
. C4 |' B0 d# h- N7 H
) ^3 w7 p5 d# c7 H6 X* Sziklai-connected push-pull output stage:
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q10 10018 10017 out ddpnp
# K- G9 \ I5 x) xq11 10004 10004 10009 ddnpn 1006 V/ y$ @3 {& L5 s/ S
q12 10009 10009 10017 ddnpn 100
. w/ h& k- j: P) E4 Lq13 vs 10004 out ddnpn 100
1 N9 q- _! t9 ?7 L, E& _4 I" k" lq14 out 10018 gnd ddnpn 100
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* generic transistor models generated2 s! ^0 R7 d: ^2 U3 ^- V7 P
* with MicroSim's PARTs utility, using
. Q/ b1 r" M0 D6 i* default parameters except Bf:# J2 m$ ?: z8 q% P8 f& Z
. y% B" q o" p3 h1 `. _- T1 n.model ddnpn NPN(Is=10f Xti=3 Eg=1.11 Vaf=100
. A- D$ M6 A+ r* Q/ X+ Bf=400 Ise=0 Ne=1.5 Ikf=0 Nk=.5 Xtb=1.5 Var=100
% D2 v: k" T" ~9 J$ [" ?5 M+ Br=1 Isc=0 Nc=2 Ikr=0 Rc=0 Cjc=2p Mjc=.3333
+ i- E a$ W0 ?$ S3 @+ Vjc=.75 Fc=.5 Cje=5p Mje=.3333 Vje=.75 Tr=10n6 r8 T; Y5 }3 n8 q- s" ?
+ Tf=1n Itf=1 Xtf=0 Vtf=10)2 h' l1 l) s1 ^: E/ t0 T
8 N4 \' @2 g0 X
.model ddpnp PNP(Is=10f Xti=3 Eg=1.11 Vaf=100
$ q# b2 e* g I. _+ Bf=200 Ise=0 Ne=1.5 Ikf=0 Nk=.5 Xtb=1.5 Var=100. d) j, f/ I/ i" ?' B2 p) w0 ]
+ Br=1 Isc=0 Nc=2 Ikr=0 Rc=0 Cjc=2p Mjc=.3333
5 B4 O X5 s- k$ E+ Vjc=.75 Fc=.5 Cje=5p Mje=.3333 Vje=.75 Tr=10n1 |4 U; Z+ l( E* \) v# ~
+ Tf=1n Itf=1 Xtf=0 Vtf=10)% J3 ]/ m; H9 P+ T1 M7 r) ^
. M) P9 f1 A0 ].ends
n7 L5 s, ]8 O5 j% c6 _*----------end of subcircuit model----------- |
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发表于 2012-5-29 17:24
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楼主
发表于 2012-6-29 15:56