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網絡上找到的
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* lm386 subcircuit model follows:
; J; u% N( n2 j+ V) g& A" V; l & p, b: w; G+ d) {$ a4 @6 h- e* P
************************************original* IC pins: 2 3 7 1 8 5 6 4! r: l$ f% {. O+ s! W
* IC pins: 1 2 3 4 5 6 7 83 O; M \6 V; D: D
* | | | | | | | |/ w9 _. J1 b* _9 P1 q0 a0 A
.subckt lm386 g1 inn inp gnd out vs byp g8
! Q7 b6 P$ G. D- p n F- ?************************************original*.subckt lm386 inn inp byp g1 g8 out vs gnd
" G" o3 l# V8 X6 ~7 [, ~' e( P! r
: S, |7 @1 ]; I4 U! B* input emitter-follower buffers:. g W/ V5 ^( q) ]7 r! W
1 E9 ]$ Q" r4 \% T/ n6 V- H/ D. ?0 Lq1 gnd inn 10011 ddpnp2 R6 ~' D+ l ]6 Y1 G& _
r1 inn gnd 50k- Z O! _( e+ f5 y
q2 gnd inp 10012 ddpnp0 A( W6 D% t, @' R# q2 k( h; G4 X% v
r2 inp gnd 50k
u/ |, o; M+ K1 } : R6 m+ j% ?6 ?
* differential input stage, gain-setting
0 v+ ~% x. N0 l0 G" U1 ?* resistors, and internal feedback resistor:
5 O# c7 Z6 S) C: r" J - F0 I9 ]1 y& J
q3 10013 10011 10008 ddpnp
5 [4 \9 s+ E, g4 V. m3 }q4 10014 10012 g1 ddpnp |# a2 u2 K6 S! M: c
r3 vs byp 15k
4 O+ e' \* X5 b% c. \r4 byp 10008 15k
+ n1 k$ X( n% A0 t' Hr5 10008 g8 1507 c$ B) h0 E$ O# t+ P- F
r6 g8 g1 1.35k0 p6 Z9 z A7 k5 G# N N+ X
r7 g1 out 15k* e% F6 F8 _6 x% W" i* c# y
2 e. i/ P5 E, k4 y* input stage current mirror:
+ r$ K% U; P- \( m& m + I: s% V( @3 v- r% [6 m
q5 10013 10013 gnd ddnpn+ S, E6 [/ c* T: E$ P$ \0 C4 z" U
q6 10014 10013 gnd ddnpn4 |6 Y p7 y3 D' k
" p( C! t) \3 M& ]( T* voltage gain stage & rolloff cap:4 \) d: u; D8 M
: f! v8 r# s* w1 `4 P. B
q7 10017 10014 gnd ddnpn' C, ]% `7 _' k2 O/ }' e. w8 T
c1 10014 10017 15pf
+ p* n( D8 m! B3 u
: x6 `% C% b0 y" D6 {! u$ C* current mirror source for gain stage:
2 ]& A2 w: ]$ m! n! W' B
6 `2 b" L h) H$ x6 ni1 10002 vs dc 5m4 m8 ?; I j7 o8 G+ G/ x
q8 10004 10002 vs ddpnp
. [3 U6 i2 {9 @$ f4 d# wq9 10002 10002 vs ddpnp
& @0 q H: [0 h: O
' y6 \- U+ o' s8 F* Sziklai-connected push-pull output stage:/ d/ i8 u" F5 p5 s; `# Z
9 D) f- B' w% b7 p5 G }q10 10018 10017 out ddpnp
1 d: @, M+ [( \0 U. cq11 10004 10004 10009 ddnpn 100
: }9 V/ w5 i# Cq12 10009 10009 10017 ddnpn 100
. Z, S: e# k- L7 u; rq13 vs 10004 out ddnpn 100
- e* ~8 x9 w2 F3 f0 ?' F7 ]q14 out 10018 gnd ddnpn 100
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* generic transistor models generated
5 ~, R# A1 X* B3 A* with MicroSim's PARTs utility, using
/ ?* ], x5 l1 Q8 {* T: Z! z: z$ w! s j* default parameters except Bf:4 k k" [. f- ^( K2 S4 I' o! }
L0 D2 x3 f8 A* U3 C; b.model ddnpn NPN(Is=10f Xti=3 Eg=1.11 Vaf=100
I) v5 P) T% Q# Q+ Bf=400 Ise=0 Ne=1.5 Ikf=0 Nk=.5 Xtb=1.5 Var=100 M q, c, m' o) ~, X* O J5 G; w5 B
+ Br=1 Isc=0 Nc=2 Ikr=0 Rc=0 Cjc=2p Mjc=.3333
$ _* }$ i: A# @+ Vjc=.75 Fc=.5 Cje=5p Mje=.3333 Vje=.75 Tr=10n
" _$ _ F9 L, a& k: a+ Tf=1n Itf=1 Xtf=0 Vtf=10)" [# @6 |8 X" ] @& z
" l6 x" ]6 j: c0 i" R.model ddpnp PNP(Is=10f Xti=3 Eg=1.11 Vaf=100/ x$ U z( N0 D3 U1 w3 N2 N
+ Bf=200 Ise=0 Ne=1.5 Ikf=0 Nk=.5 Xtb=1.5 Var=100; e5 M* Y1 R3 f O( y0 T
+ Br=1 Isc=0 Nc=2 Ikr=0 Rc=0 Cjc=2p Mjc=.3333; {) P! c' i( x# ^1 `* Y
+ Vjc=.75 Fc=.5 Cje=5p Mje=.3333 Vje=.75 Tr=10n
8 a9 t1 e6 i& ]; }# l" z+ Tf=1n Itf=1 Xtf=0 Vtf=10)$ R) O; Z& _3 a9 _9 S5 m: `0 r
. c( P+ ^5 R' u4 e9 d+ p
.ends
/ b% _0 g. g/ S7 y*----------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