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網絡上找到的
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|5 l. S/ i" l, r! U1 t& V7 P ?* lm386 subcircuit model follows:* X+ Z6 v- h9 e$ l( B
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************************************original* IC pins: 2 3 7 1 8 5 6 4' H+ i# z6 K! S) B5 S
* IC pins: 1 2 3 4 5 6 7 8) G1 Z$ s: p& z& _1 \1 k( J
* | | | | | | | |9 S9 O% \3 l) m& S( _$ y% G
.subckt lm386 g1 inn inp gnd out vs byp g8 a5 Q/ E0 c4 w0 [
************************************original*.subckt lm386 inn inp byp g1 g8 out vs gnd& V% a. P% J9 {+ e& M. {
7 b$ }# {0 A3 ^/ w3 k5 b6 Z* j8 Q* input emitter-follower buffers:
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' S8 [ N4 X* Y) e$ _q1 gnd inn 10011 ddpnp9 R: v d. T5 Z# q# e3 i7 a) p3 P
r1 inn gnd 50k& ~3 J' K* V1 `5 s! u# i2 G+ L, {) R
q2 gnd inp 10012 ddpnp3 y9 Z/ ?5 h" z8 [" N0 A2 ~
r2 inp gnd 50k# b% G. h3 [# S, q
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* differential input stage, gain-setting6 Q3 m. F: q- M5 k) ~! x( k: K0 H
* resistors, and internal feedback resistor:
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6 I" B# v. h7 D! ~9 Y6 sq3 10013 10011 10008 ddpnp% t/ P) M: x Y7 V6 O( q" |( _
q4 10014 10012 g1 ddpnp- U1 s4 B! V* E3 r/ G
r3 vs byp 15k
! K6 L5 \/ s3 g' k, Z( d$ t+ [- \r4 byp 10008 15k
. w% b& U. O6 Xr5 10008 g8 150' p6 l3 G s! {: V, c' `
r6 g8 g1 1.35k
/ q, H$ z" r% [4 s( g7 b. O6 cr7 g1 out 15k! B/ ?" H# f# ^5 p
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* input stage current mirror:" n+ C B2 P' _0 b
) x) C; L B6 h: Y- z9 j! J/ E" Sq5 10013 10013 gnd ddnpn
# t4 x8 h9 ~1 V+ [ Iq6 10014 10013 gnd ddnpn
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* voltage gain stage & rolloff cap:
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q7 10017 10014 gnd ddnpn5 x9 ?* z6 v7 d I' L
c1 10014 10017 15pf
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7 q* m, F' ]) b, b* current mirror source for gain stage:0 g) Y! W8 ^/ ^ |
+ a m' e; o Pi1 10002 vs dc 5m: H/ Q; i: h' j+ @0 t
q8 10004 10002 vs ddpnp
0 c7 B0 P, l( {0 A: c% kq9 10002 10002 vs ddpnp
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* Sziklai-connected push-pull output stage:( m9 L; \! L x/ O2 p
! R- H- l+ N# d% U) ]! Oq10 10018 10017 out ddpnp
# H5 F- R2 }5 J9 D9 p& Dq11 10004 10004 10009 ddnpn 1004 V9 G8 A1 K2 P+ _
q12 10009 10009 10017 ddnpn 100
0 z! T% o# H1 P/ n7 o& wq13 vs 10004 out ddnpn 100
8 \. e3 W# B# j6 B2 Aq14 out 10018 gnd ddnpn 100
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* generic transistor models generated
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* default parameters except Bf:
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( k9 U8 O8 t+ L6 Q/ M0 K3 a.model ddnpn NPN(Is=10f Xti=3 Eg=1.11 Vaf=100# k/ t# C( I& m: l8 h
+ Bf=400 Ise=0 Ne=1.5 Ikf=0 Nk=.5 Xtb=1.5 Var=100! [$ X) ?& z/ }- E8 p9 x5 ]& ^
+ Br=1 Isc=0 Nc=2 Ikr=0 Rc=0 Cjc=2p Mjc=.3333' y5 |& l7 v6 b6 U
+ Vjc=.75 Fc=.5 Cje=5p Mje=.3333 Vje=.75 Tr=10n
# E3 j' `2 \+ p* n4 C1 f$ Z3 p: z+ Tf=1n Itf=1 Xtf=0 Vtf=10)
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.model ddpnp PNP(Is=10f Xti=3 Eg=1.11 Vaf=1000 @- ~4 B0 T0 L# K7 }
+ Bf=200 Ise=0 Ne=1.5 Ikf=0 Nk=.5 Xtb=1.5 Var=1006 Q. @, u3 |* y; }3 a# [; a5 v
+ Br=1 Isc=0 Nc=2 Ikr=0 Rc=0 Cjc=2p Mjc=.33335 a# [3 K# O$ Y
+ Vjc=.75 Fc=.5 Cje=5p Mje=.3333 Vje=.75 Tr=10n
! {' i- x9 O5 o+ Tf=1n Itf=1 Xtf=0 Vtf=10); |+ i0 `, n& @7 p' i
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*----------end of subcircuit model----------- |
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