Multisim中LM386芯片的构建步骤Word文件下载.docx
- 文档编号:1564293
- 上传时间:2023-05-01
- 格式:DOCX
- 页数:11
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Multisim中LM386芯片的构建步骤Word文件下载.docx
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Step1:
Entercomponentinformation.
Step2:
Enterfootprintinformation.
Clickon"
Selectafootprint"
Therearesome5000footprintsintheMasterDatabase.Tofindtheonethatweneedmoreeasily,clickon"
Filter"
.Clickon"
Addrow"
andselect"
Footprint"
fromthedropdownmenuunder"
Column"
.Setthe"
Operator"
to"
Contains"
andenter"
DIP8"
under"
Value"
asshownbelow.
Selectthe"
UltiboardDIP8"
footprint.
Select"
.Inthefootprintinformationwindowsetthenumberofpinsto8.
Step3:
Entersymbolinformation.
Edit"
toopentheSymbolEditor.
DownloadthefileLM386.symandrememberthelocationwhereyouputit.IntheSymbolEditorclickon"
File"
and"
Open..."
andopentheLM386.symfile.
Donotchangeanyofthepininformationthatappearsatthebottomofthesymboleditor.Clickon"
Exit"
andanswer"
Yes"
tothe"
Savechanges?
"
question.Nowthesymbolinformationwindowshouldlooklikethis:
Step4:
Setpinparameters.Clickon"
Next"
andchangethepinTypesforthedifferentpins(from"
BIDIRECTIONAL"
)tothevaluesshownbelow.
Step5:
Setmappinginformationbetweensymbolandlayoutfootprint.Click"
andfillinthefootprintpinsinasshownnext.
Step6:
Selectsimulationmodel.Click"
toobtainthe"
Selectsimulationmodel"
window.
DownloadthefileLM386.cirandrememberthelocationwhereyouputit.Thenclickon"
Loadfromfile"
andopentheLM386.cirfile.YoushouldseeawindowwiththeLM386SPICEmodelfilledinasshownbelow.
Step7:
Mappinginformationbetweensymbolandsimulationmodel.Click"
andfillintheModelnodesinthePinmappingtableasfollows.(Note:
Themodelnodesarenumbered1,2,3,...fromlefttorightinthe.SUBCKTspecification,irrespectiveofthepinnumbersinthefootprintmapping.)
Step8:
Savecomponenttodatabase.Click"
andinthenextwindowclickon"
UserDatabase"
Analog"
Addfamily"
Amplifier"
forthefamilyname.
Finally,click"
Finish"
andyouaredonewithLM386componentcreation.CheckthatyoucanselectthecomponentinMultisim.
Thenplacethecomponentonaschematic.
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- 关 键 词:
- Multisim LM386 芯片 构建 步骤