adc-dac2.ewb

通信原理-高频电子电路CAI-340页-22.2M-ppt版.zip

80I@E0O4B@M06DDLI@K46@H<04880HI00HH@=@<L0HI0E@;<A044B<5@68LH1DC<6
L>DL@JHND4DA4DH14MH9<38F8>LHDD@9L70884HN@3@G48L=0487888LHMHD4A4M0
:89@=DH84D70:4;D682<<85HB4046<5HF40428D<98>414ID50?HC4JHCLADC@A0M
HA8242<38>8D0146DBL8L7D68=H48I8H4DHF8<0?DIDA@0D<8<858H84L><<@NL8<
AD80>LOLCHA0A4I@1870>4;@1<AH5H1D4LI@C0A4M0J8C<BLH@H0E<C4E0N02448E
HE8147D:LC<OD94180HO@0<$000@80I@54><<H1HA06@78=@@0A004888H1D20708
0I@@0O4G4ED0H1880@0J@H<C06L=@KHJ@B4;<9L40<0B89DMHD@B4:<LH9<38F8O0
5H=HKHB0=D1@3@208480A0E044B8FHM4I<L<L@94G<M@4DF<@4N<6H;HD0;4HH=0E
88L64:4A8M<=LOHN4OHC0KH:0><2<9@E0G4I4LHE4I4G0G44LJ4K@@@N<KHMDK@@@
F0A<=088IDHDN4K4I@68BL2<;42H6<=85H@HC4J0B0@L9D:@:LK4@@C8E<>88H3H7
0NL40A8E<I<=<A4A8O468=@4L2<@@;4<<<HO@8DL<LH3@ADLHOHLDB8><2HB814>D
?0>H2<?8EHC<;40H=H48H<N<HD086<5@2D4<4LHHMH20><74L03L$000@8@K@2004
D8@4082040><M0I<D<7<=4L@B@DD;DNHJ8><1LC@6L><80D@J4840<H@A@3040<0@
0D0@4N<54J4=<9HC4F<=4KH103440<8GH00@4<<<H>LK<=DH@I@CH506<LH1DC<6L
>DL@JH445HMLO0L09<38F8O05H=HKHB0=D1@3@20848088ILD4N4BL1@C<9L:43@8
86<CD>0HH?D60=888K0;D6@D4LH5HC8B4H0IDE03L:D1870>8MH@@346H4<14C@@D
MLAHHL;02@7HHLJ08@>D1@9HE074DHLHCHKDF4M0I@4<8<<HC090HH1@C0B4J89D7
0C0344<B@60989D4HN@3@G<HL<0487<>HM4K@C0C4?H6L<8LH8D8<DH<844C8><<8
<8L@1@781HAHD@<HK000A4HH506HL<C83868H<;@60F<HHB@@@38MHL@@@K<@4@0?
L$000@80@0N@04IHC<7440J8M0D004<8HH1DB0=DJ0B004F8DL@488=40D<89HC4F
<=4@HN<4H64<8DH3LIHMHBH<H7H=H6H;4<HI@3<6H=LM8I0ED0<2060I44H>LJ8I0
54N<4D1D;4?@2L6L=LI06H0H1HA040408@H@@044B8NHM4I<L<<@98G<M@4DN<4DC
D;8@<DD=L4H5H:8>4A@ID0H@4F0646<IHEHIL:H<8<85@1@6D4LJ@@@D00<I<@0I@
7DA850KD8HK@A@2@;8K0E034<L@4=@<8E<30?L8<IDF4B0B<=HC4EHC@346H24CD3
8JL5H6<C8B41@9H3@KD8<ID>D74D4LLO8288<D<4H1@EHB<24B<;D2L<<4HB@N44L
4HN@3@G048=0H8L4H0D42D90G<3LI85@2L8<4HN@K@7LE0C4A4M0OH@41<A0C8G<3
LN01L$000@80H000J4800410B0?830N<@HIDC<78>880D@HD6DG4B<8H9HC45L=4I
0L8G<G0?48<FH64>0800@044448HH1@B4F@9L;L3H4L:<K8<D5LC41LC@6L><E<8@
0L1D206<>8@0A004@8@HIDNHI4;H><I8C@9DN<8HI000B4F<G<GHI<O42LC4:0>H3
L9DM0G4GLI@I@G004L84HB8O<M<F<8@HDF0:40<0@IH;H90I<3@=85HD<04:<;D<H
2<KD<D6@L<F8306044MDFHC8:0><;<9@>D;<9D>@FLI4F@K<<888K8=D6HD4LHFHC
4M8>H6@08AHK<ID7864<H@85L;@D484:<;DAH84:0J8LDI8786D44MD68C4J@LD@0
?L$000@80N@=4D0000@I03@MHD@B4:<0H4@ILNHJ8><1LC@6L><80D@J4840<0@AD
3840<@@0C0>40<8@9@F8JLC@68<LFD?44<<@JH2LIHFH=8H04@G<AD?4H<LH9D3DG
4ND0L28J<6@L4?@948<2HKLHDID3<F8AD@40<4810102464<8A0D@?DD4L468C<4L
8L8<4HD8I<3<;8J8=86HF@KH<0HH0468D4M@7HC0J0><?LA4D8242<0HNLJ4I0G4O
<<8HH@49<2HH81HF0147D0LEH1@C06070L0HH9@BH40DH40L@K@:L2<=8MHG<04F8
>@HD;@OD90MH;L>H404LK@349@@HID90<H<HE888@@A464DD94LLK@@@CH><=82H3
<C<G0B0E4>@<LG@30740<;D4<7@68=088;09874D4LL00C<04KH384DL03L$000@8
0@0I@<49HC46<><80D@J4<40<8@I@3H346880?H@0C4>D:L0<@D;8F0<LI@3<6H=L
M8I0ED1<2060I44H>LJ8I054N<4D1D;4?@2L6L=LI06H0H1HA040408@:HA<90K8D
L5LALB<54MDF8BLI@0LIHK<?0@@0H10386L80NHJ0D0A4A<B<>@@8ADC47<<0<H3@
<02<:<24>81HB0147D0LL0=@<<4HD80<<8K87D6L4<A4C8CL<HJH<HCD<H;@5HD4M
@E0C4J0><:@IH6H<@H844EDC<I@<@68=@88K40460D4LLH0LD844<4H3@9HA094N4
3HJ8B8F014844LBH243860<4>0H8A@C4M@@@C4B0HHGLC820>@L8>0484L1@9HD03
4=4H@8@BD4HL03L$000@M8I004B40H0@1@201D2@@000E4@L7<=4L@B@O4B8@H5@G
HA<C<6L<@3<0<0L8@202048<8J02094O<N@LD>468DD;DNHB8O4H0?46<FL98>@J0
00840<0L10C4=DK@0024B<M@6DDLI@K46@F<?4B<347480;HF0=@FH@8B<5@60LH1
DC<FL:0>8KL9DM0G4=H<H1L9@8@JLI4:@6L@<ED;<>88H:D64B4KDK82<H<4H@@KD
082<?8=H6D;<I48@<HE<306<=8DH?LD@2D2<:<285@3D600<8@1DC0G05094K4@8A
<9<<DB<H@ID3@78:<I8J0D4B<HHMD@4=<9<H8?D9DM8F0=D80J<O8544<2LJD<H9D
AL?H7L<8;@;H;4>0E0L@@4A<J0HD98306H>DC<4H>LL<@H@H<0G0@0A4DDGD54<<M
<ELE@6D7<8D=L8448=<58044<>DK@A@74:8HHED6H0HO@0<$000@80@000F40L8@0
<@D=L?D=0N8@H9@3420=480I@4@;<;@14<<FL94>8>@J000440<8@1DC0=DG0E0M4
4LJ4=L98CH6H=DI8J0B4B<NL=@;8H@4@O<:@>4B<@HIHK@8HM0E@M4HHI0D@?DO8N
8M0I4C@64=4K0F0?4K<IH3<70<D=4>LA@DLD0G@9D=H6H80MHIL4@;4HH;<H@8@<L
4D1@C<78<D;D40HHID;<IDL@5DM4D86@?8<<5DC090OH2838D<48O8@<903078<4A
L4<8HID;0O8LD24H04@4L64NDC0?<C<?D6@B4<8G8N88H1HC44<<DK@48C<F008J0
544<BLM0ADMDKHB<>@34D@5D:@>4FHI@H49038FLMH282<4<E0J@ALJ@4H6DD<9D>
D7DC8J0:4B4:<@L1H3858<4H@F08DJHB4B06L=LK02@H40<8L1HA040408@A0H@J0
;LC074=<B4DDH4L@IDC46@<<@8MHDH7@?81<8DJ@70ID1D><MDLHKD486<=@9@G8G
4<L10C<6L<<JH1804<8;0C4BDG<DLN0L0HD3H64EH0HADF8DD<0ID3@E0>D8L4@AD
;D8@H<I<LH98386L<@KHK@94L8HHI@;<549030?H=@CLJ<KHG01DDDJ46@3HI4I00
4H8HHI@@8G@M<LHL@8@L<<H5<5D=HL0H0;4:0NHJL:LAHC8E<40<H:0DL8HIHG8I4
64B<M8;HH85D7L><M00HL42408HDH4I@>864B<L46H08D4=<=<1@M@HL>87<K43LN
01L$000@2@@000C40<2D74>DM0D0D4288H1@C<6840J8M0C00408LH@L304038986
<44=LI0=83<3@40=@B8=DC8J@<48<4L9DB<68>@I8I0>DF<C01DB484B<=@<LD@AH
C<648LI8G0JD;H603<48D<@H9@F8K<B<74<<J8F0<4N<FHCD6L>06DEH306DM<A48
HIHODE<2DO8M84HA0C<60=@N8I@946<HL=8;<>DI8I@BD;H?<A460KHJ@B4B<>HOL
N<CLM0=@OLB46448DL9@3@B0ND;D@H<0>8G@C09H:DK@D@D4;<=4=494FLNH70E4J
<0H943074=DMLB8B<M@<8FDO@J4C4684H=@J@9HCDC00<2@6@<4LHB@E4K88D2HKL
@L94386L<DAHI0140<0L5D;85LDLB4;8:0F88D;L3H0D3428:H1@AL=8@854>@9<0
@;D6H4<<8;LFH7H4HN@O8?00<BLN<50F<484H<8=<IH<H4HDHJLCD68<DL0:0I40<
2L84@LE<9H9@34G46D;8CLBH649HF@30@DL88@G41H146<<8ID?490=4N@480@98:
D908L8@J8I@5D@H2D4@ID3<FLH0D8C8A@H@?0<8FL848H<@D8:45<FLKH=D60;@<8
N038K8:8ELDHF@<D:<5808OH04$000@80@0K00<D8@4H8>HND60@D9H3074>@A@I0
542<0L@@3@206424O<:@>4B<@HIH3@20=480H0H@6D?<0<BLN<50F<484H<8=<IH<
H4HDHJLCD68<DL0:0I40<DL5@7H744L>DK8A0544<FL8HM<6<74:H6HDHBLJD0HJ0
C4684H1@K<L@A4><KLC<78>8HH6H48506HD46L<@24;89054<<2HED1<J@280L>D7
LBHFDFH0D9<CH58><I8B0HDG<24JL3LH4ILK8LD9034FLND28FH40B4A<A<E85LAL
D0JH:<C06H<DM0CH=0>@98O<<<0@=8I0C<6H>0KH:H@D3<G8105HLLE@24;@C8GHL
HKD0D2LDD:4246L<@24K<4@>46<8H5HCHDD6D;DG<2H=<<H6@0D243428HH9D306H
?4LHD@8DD01<58:8@8704D;<<<B814188LCH<DID=D<<JLH42<70>@J82H60><I4J
H30NDNH:@9468N@E@<@L8?8;88L:@J8F@54A<6LE8284@6L>8040<4HHHJ<O<N<HH
44<D6@4HJD<H:0KHD@>48<2LA4>0A4C@AD4@5D<0J@H@6D=<280H5L3@F498=LJ@?
@@8J@5D@H8H<8I434L<>098K4B4H@;<O02@140<I0@D1L4@KL3HN01L$000@M0G@@
4<<8@9HC47040L@@0A0:4<H8D1@304038500004B81L:<DD;42D6L=4M0I@04B40H
H@9@=@FL7<<DI8H0D4B80L9HK47<<<N<>4:8DLADC068>8E<FLGHB<=<8D<8G<;4=
D20CD54<<H8F09D7H64I49H?D?49D8L:@L@@@>46<HL=@=D34E4L<<H1@CD6@=LK@
J8<8?<I4=@B8G0C4N8DHAHC@F4BD2<2@LL2D5<=LK0J014><2H441@4L=LI0482@B
8:8HH5@;8BL4L>DM0D88D9<KD0@FD@8B@J4;848KHD8G864I44DHDDLCL3H8LJ4?8
508DM<F42@=H9<1D5D44>8I8G0D4A<2LF04@=HL02HC44@=DL0B@442<HHID;00@;
HKHD@N0>@6<B8HH1DK4C0<L5H7HL0N@ADF4:43<14?48<0L5DEH5D:DH@J@28604L
1DCD6@>HO<N8D8582D=@G0F0@LI0:00@LDG@5DI0KHG0ADB8F4@DDHBH2474>@34D
424O<68D8<86<@D0<JHH<0@I<<4@0JD60H4<8<@;09<8DJLF@J0ELE4D4HDA85D78
?H78DH4L<HD@J@>4C<E0<@B8EDE0IH3@>8IDO0@D8<1DB0@0?L$000@38500004:8
1L:<I8B@440<481D103040A42H8@J8I@D44<4LADC078>@J8G@>4A<=LLDL@1DC46
840@8<8E<1D14L<4H1@C<7@><=<28;LA<A8B@409HI4:H64I4:H84L4I08<=H0<3<
:<HH1DCD4L>0L<FLG4<@E<GDL@G<DL98B8D4<L4D2<JL<<18CD60>8M0:094J<FHO
0I0HD8DC89H=LL0>84<2L60<0<87@GD7L=L;@1L<DL0:@C4A<D8<D=D0HLD9DK8B8
=49<H08@=8CHC@AL4H8HC42H60=8L8C86D14@<2LAH;0DD6L=87H84M82HH<6@C<5
<74<<3@JH2L4<A4FLN054J8C86<48DL9@K@0@A<K@E4A8C<6@>@24O0:8BDIHO4B@
;4242<G474<L6D2<K<MD9HK4488<4D1LC@F850B470E4J<8H9@34G46H64C8B@E@6
HA0IHB@64<4K0B@@D84@L>@8@DD9@K<18484L1@CDG8DDKL@4J<L830CDDLE01DG8
4D<@K@H@6L58L8@H5@<8C<4@=HHHI0HD5<K4I478:0E@;<@478O018O00L$000@<0
G0@0044<0HA00H1880@0L@0<BD6@=DI89@D4:<0H9HBD74<DI0@0900<084H986<5
0=LJ8G0D46<NL:H64<0486D9L9H40L@6HE09@1<306D>4IDC8@@H41<8LE@J83<6D
CL40>DM0G@9DF<G4B86<HH<4?DA4:DB044=LL0J094N<HHID;@F8KD;H;@H8:D248
H1H3D4<>8I8H@9DF0I0CDE8G094=<2<<<KD;HKL2DC8N<54F<484H>8><IH=84HFH
K<CDF88D@H983H70<D:448>4:8DLADC068>8=D<86@54;4=D20CD54<<H8F0541<@
<1HM4A0A8C@F00D;HC868=HM0J8E830GD:@9468N@2@<@B83D=DM@>0N4:HHLO06<
JHLDFH?0C8@@@L0HL4D4?<?0M03@2HG8@H@DAH<4D83<4L=LI0B@@D@L>4J8M08D2
0?04@I4;@?44<<L1HCD44<45<7@E8<@E0G@<4:<>HL4343<FD<<;@383LBL;0;@:@
8<M<A09D30G8107HD0@88H=HN484K<40F8?0H848;8FHK@@@<4B<<L9HC8G4?0:<0
@HD6@HHD@1@48I01<O00L$000@2@@000I4@L54>@KHH06448DL9@3@20>880H@50F
<480H1@201DJ4C8:D>4B<@HIH3@20=480I@H@>HG<:<DH1@3@58?4L0B@GD6<6H3L
4L>DK8A0544<FL?8M<7<G4:H4@FHC<JD0HJ4C4684H1@K<L@2<B<M@J@BLJL68BHI
D2474<4L0D0EDDD4@=HI@G@BD<8?<=44H:<J0G@G4L<BHN@GD<@644D9DC<78=@H8
J094N<HHID2<G0G4I@8DI4G0B05@H<2DLL<H9@K4ND0<H<4DL4JDK8=4:<LHI<K@=
D=@MDFD@0@4B<>H184<FHJ46DE4=D<8I0D@=DHHD0749<F@D494F@5D1<>HIL:4:8
HH@@C0IHF@ADA@C8F@1LC468<HH8B09D:<;@@LG4103D2<>@IDH4@004B<A0N45H>
LB4G8C@=4B<HH5DA8J<L0D@F44<DL5@4L94J@GH5D<4:4@894L@@@=40<6L58H@?4
N<O@FDNH942854I0C4@<DHAH3<G888DH8@O00D;<K<3090HH9DD8@<C<6L=DN43DL
@=8O88@0L7<=HE4JL<0K04@M8F@14@<:LC828>8D4@<FHB@BLE45L>H=<7L7HC<L4
B8M04@LH1DC468;LK@J@=4N<0DIHC<6@=HM048L09LC0G8LDM<E<<<H@L0<L38?@5
4L<4HA@;03@58J08D9DD49HC8F4>L4@1@8D4HID3@70=@H8L@O4N80H1H;D9HB82@
H8L8;89HL@D@74><DHA@;@?@F82D=H1H;D=@=<D8BLC<FLBD24FHB0J@HH7068<0B
<DH9D38G8G05H=L1<ID68<DLH9<C<68=DKHI0I4A<F<OD8@2H@H9@KH:44@1@;D@H
A0@0?L$000@80@0I@04AHC@68<<J8I@94N<HH1DA06@40<8@0=0D0:0G<C0?44<<L
9@C45L84@HKH0@4H=DD8DLA@C@6L;LJ8G0948<LLI<K0K848A<E<8L4L9DK<K8C88
<DL1@K@O<B454@<NL;H6@=4MLK8ELG4F0ND;09<><B<0D9@48GD60=HH8F0O428DH
1HCDFLG0:0L06H<D=HBDJLH8BLF8:DN8LDADK4A834;<?@I8G0HDBDC02<:H88C<A
<N<A0C<78=DGHH0?4;<78M0480@A@;H?LE<K0144<JH>H5DCL5DL8@89@=LL@9H<L
K8BH;LC86HJ4FH<0<42<:<?DA<M<44N<3H6D>43D=0L8;D?H1<C<K0D@K8@@H4:<H
H1HKDI02HI4ML8@MLK<I0H@0@?HDL6L>0H8F0@D44:LM4ADL0I0>@B83<NHB894;<
I0C4@<DHAH3<G8C@50D4G074>8HHD8M44LI@C064>@>4<4A4I4;<=HLHL8?4M0ID2
<7094JDLL8@3D78>8N8:0?46<L@9DK<K8HD4L703<B@747<4DB@=4:8@H1HC8FL30
L8M4C<MDJ<BL@0?L$!d4580d3a