Uyilo oluhlanjelweyo luhambelana neMigaqo emibini:
1. Umaleko ngamnye kufuneka ube nesalathiso esikufuphi (amandla okanye umphathi womhlaba);
I-2. Umatshini ophambili osondeleyo womanzi kunye nongqimba lwamanzi kufuneka lugcinwe kumgama omncinci ukubonelela ngetyala elikhulu lokudibanisa;
Olu luhlu lulandelayo i-stack kwiBhodi ye-Winder ezimbini ukuya kwiBhodi ye-Wighter eyi-8 yomzekelo:
I-1. Ibhodi enamacala e-PCB enye kunye neBhodi ye-PCB ye-PCB nganye
Kwiibhodi ezimbini ze-Winder, ngenxa yenani elincinci leendawo, akusekho ngxaki. Ukulawulwa kwe-EMI radiation ikakhulu kuthathelwa ingqalelo kwi-wiring kunye nesakhiwo;
I-electromagnetic yeBhodi yeBhodi yoThengiso olunye kunye neebhodi ze-windows kabini ziye zabala ngakumbi kwaye zidume ngakumbi. Esona sizathu siphambili seli phenonon kukuba indawo ye-loop yomqondiso inkulu kakhulu, engathi ivelise i-elektromagnetic ye-elektromagnetic, kodwa yenza isekethe ijongene nokuphazanyiswa kwangaphandle. Ukuphucula ukuhambelana kwe-electromagnetic yesekethe, eyona ndlela ilula kukunciphisa indawo yeloop yophawu oluphambili.
Isignali esiphambili: Ukusuka kwimbono ye-electromagnetic, imiqondiso ephambili ikakhulu idlulisela imiqondiso evelisa i-radiation ye-radiation kunye nemiqondiso evelisayo kwilizwe elingaphandle. Iimpawu ezinokuthi zivelise i-radiation eqinileyo yimiqondiso engapheliyo, ezinje ngemiqondiso esezantsi yeewotshi okanye iidilesi. Iimpawu ezinolwazelelelo kuphazamiso yimiqondiso ye-analog ngamanqanaba asezantsi.
Iibhodi ezitshatileyo kunye ne-upender-mbini zihlala zisetyenziswa kwi-Aalog Dalog Deyini ngaphantsi kwe-10khz:
1) Amandla omkhondo kwi-face nye ancitshiswa ubugcisa, kwaye ubude bemigca buncitshisiwe;
2) Xa ubaleka amandla kunye neengcingo zomhlaba, kufuneka zisondele omnye komnye; Beka ucingo olusezantsi ecaleni kwentambo yomqondiso ophambili, kwaye le ntaka yomhlaba kufuneka isondele kakhulu kwi-wire yomqondiso. Ngale ndlela, indawo encinci yeloop yenziwa kwaye imvakalelo ye-radiation ye-radiation eyahlukileyo yokuphazamiseka kwangaphandle incitshisiwe. Xa ucingo lomhlaba longezwa ecaleni kwe-wire yomqondiso, ilogo kunye nendawo encinci yenziwa, kwaye ngokuqinisekileyo umqondiso uya kuthatha le loop endaweni yezinye iingcingo.
3) Ukuba yibhodi yesekethe ephindwe kabini, ungabeka i-wire yomhlaba kumgca wesiginali kwelinye icala leBhodi yeSiphaluka, kwangoko ngaphantsi komgca womqondiso, kwaye umgca wokuqala kufuneka ube ngokubanzi. Indawo yelopha eyenziwa ngale ndlela ilingana nobungqingqwa beBhodi yeSiphaluka yaphindwa bubude belayini yomqondiso.
Ezimbini kunye nezine
1. I-Sig-GND (PWR) -PWR (GND) -USIG
I-2. Ghule-Sig (PWR) -US (PWR) -UGNT;
Ngale ndlela yoyilo emibini elinemida, ingxaki enokubakho yeyokwemvelo le-1.6mm ye-1.6mm (i-62mil) ubukhulu beBhodi. Isithuba esiphezulu esiya kuba sikhulu kakhulu, esingaphelelanga kuphela ekulawuleni, iqabane lihlangana nendawo yokuhlala kunye nokukhuseleka; Ngokukodwa, isithuba esikhulu phakathi kwamandla amagqabi asinciphisa iBhodi yeBhodi kwaye ayihambelani kwingxolo.
Kwisikimu sokuqala, ihlala isetyenziswa kwimeko apho kukho iitshipsi ezingakumbi ebhodini. Olu hlobo lweskimu lunokufumana ngcono ukusebenza kwe-SI, ayilunganga kakhulu ekusebenzeni kwe-EMI, ubukhulu becala nge-wiring kunye nezinye iinkcukacha ukulawula. Ingqwalaselo ephambili: Ungqameko oluyintloko lubekwe kumgca wokudibanisa olwelo lomqondiso kunye nomqondiso oxineneyo, oluyingenelo ukuba ucinezele i-radiation; Yandisa indawo yeBhodi ukuba ibonakalise uMgaqo wama-20h.
Isisombululo sesibini, ihlala isetyenziswa xa uxinzelelo lwe-chip kwiBhodi lusezantsi kwaye kukho indawo eyaneleyo ejikeleze i-chip (yindawo efunekayo yobhedu). Kweli sikimu, umaleko wangaphandle wePCB ungqimba ungqimba, kwaye umbindi wezibini ezimbini ziyimpawu / imiqondiso. Amandla obonelelo kumqondiso aqaqanjelwe kumgca obanzi, onokwenza indlela inyange indlela yangoku, kwaye ukumiswa komqondiso we-microstrip umqondiso kukwezantsi, kwaye i-Inter Foination ikhuselwe ngumaleko wangaphandle. Ukusuka kwimbono yolawulo lwe-EMI, esi sesona sakhiwo se-PCB sePCB esikhoyo.
Ingqwalaselo ephambili: Umgama phakathi kwezinto ezimbini eziphakathi zemiqondiso kunye nemiqondiso yomxube kufuneka ziphakame, kwaye ulwalathiso lwe-wiriss kufuneka lubethe nkqo ukuphepha i-crosstalk; Indawo yeBhodi kufuneka ilawulwe ngokufanelekileyo ukubonisa uMgaqo wama-20h; Ukuba ufuna ukulawula ukrakra, esi sisombululo singentla kufuneka silumke kakhulu kwindlela iingcingo ilungiselelwe phantsi kwesiqithi sobhedu ukuze sibe noncedo lwamandla kunye nokuphakanyiswa komhlaba. Ukongeza, ubhedu malunga nokuhanjiswa kwamandla okanye ungqimba lomhlaba kufuneka luthintelwe kangangoko unakho ukuqinisekisa ukunxibelelana kwe-DC kunye ne-frequency.
Ezintathu, ezithandathu zemilenze
Ngeeyisiso kunye nokuxinana okuphezulu kwe-chip kunye nereji ephezulu, uyilo lweBhodi yeBhodi ye-6 kufuneka luqwalaselwe, kwaye indlela yokuphatha iyacetyiswa:
1. Sig-Gnd-Sig-Sig-Pwr-GWR-GND;
Ngolu hlobo lweskimu, olu hlobo lweskimu esinemiliselweyo lunokufumana ingqibelelo yomqondiso olungcono, umaleko womqondiso uhambelane nongqimba, i-thermation yamandla ihlawulwe, kwaye ezimbini i-stratum inokufumana imithombo yentsimi yemagneti kakuhle. Kwaye xa kugqityiwe amandla kunye nomhlaba opheleleyo, inokubonelela ngendlela engcono yokubuya kwegama ngalinye.
2. Gnd-Sig-Gnd-GWR-SWR-Signd;
Ngolu hlobo lweskimu, olu hlobo lweskimu lulungele imeko apho umntu oxineneyo akaphezulunga, olu hlobo lwezinto ezinokubhalwa luzo zonke izibonelelo zeliphezulu, kwaye inqwelomoya ephantsi igqitywe igqitywe. Kuya kufuneka kuqatshelwe ukuba umandla ungqimba kufuneka usondele kwi-famier engeyondawo yecandelo eliphambili, kuba inqwelomoya ye-faziso ephantsi iya kugqitywa ngakumbi. Ke ngoko, ukusebenza kwe-EMI kungcono kuneso sisombululo sokuqala.
ISISHWANKATHELO: Kwisikimu sebhodi yesithandathu, umgama phakathi komatshini womandla kunye nongqimba makuncitshiswe ukufumana amandla amahle kunye nokudibanisa komhlaba. Nangona kunjalo, nangona ubukhulu beBhodi buyi-62mil kunye ne-Spacing ye-Spied incitshisiwe, akukho lula ukulawula isithuba phakathi kwamandla amakhulu kunye nodonga lomhlaba ukuba lincinci. Ukuthelekisa isikimu sokuqala kunye neskimu sesibini, iindleko zesikimu sesibini ziya kwandiswa kakhulu. Ke ngoko, sihlala sikhetha ukhetho lokuqala xa kusenziwa. Xa uyila, landela umthetho we-20h kunye nomgaqo we-fayili.
Ezine kunye nesibhozo
I-1. Le ayisiyondlela elungileyo yokuhlawula ngenxa yokufumana i-elektromagnetic and kunye nokunikezelwa kwamandla amakhulu. Isakhiwo saso siba ngolu hlobo lulandelayo:
I-1.signIgn 1 indawo yecandelo eli-1, ungqimba lwe-ning cing
I-2. I-Storlip 2 ye-hicrip ye-Microsprip ye-Microsprip, i-wiring engcono (X)
3. Ibala
I-4. I-Storline 3 Stripline Ingqengqelo, ungqimba olungcono (y
I-5.Ignal 4 stripline
6.Umsebenzi
I-7. I-5
8.Ngalign 6 ye-hiccerip ye-hiccer
2. Kuyinto eyahlukileyo yendlela yesithathu ethengisayo. Ngenxa yokongezwa kwe-suerement yereferensi, inendlela engcono ye-EMI, kunye nemveliso ye-EMICE ye-SITERIT ye-SITER nganye inokulawulwa kakuhle
I-1.signIgn 1 indawo yecandelo eli-1, i-birip ye-wirip ye-wirip, i-wiring elungileyo
I-2. I-Spotratum yomhlaba, i-Electromagnetic Wave
I-3. Isiginali 2 stripline racer
I-4. Ukungqinwa kwamandla amandla, ukwenza i-ancroomagnetic efanelekileyo ye-electromagnec kunye nongqimba ngaphantsi kwe-5. Ungqimba lomhlaba
6.Ngoma i-3 yezihlunu zomxhasi we-3
7. I-Stratum yamandla, enombane omkhulu
I-8ssiger 4 i-nicrip ye-niarip ye-hiring, ungqimba olufanelekileyo
I-3. Eyona ndlela ilungileyo yokubekwa, ngenxa yokusetyenziswa kweendiza zesalathiso ezahlukeneyo, inomthamo ofanelekileyo we-geolognetic.
I-1.signIgn 1 indawo yecandelo eli-1, i-birip ye-wirip ye-wirip, i-wiring elungileyo
I-2. I-Spotratum yomhlaba, i-Electromagnetic Wave
I-3. Isiginali 2 stripline racer
4.Umsebenzi wamandla, ukwenza i-elektromagnetic egqwesileyo kunye nongqimba olungezantsi 5. Ubeko lwendawo
6.Ngoma i-3 yezihlunu zomxhasi we-3
I-7. I-stratum yomhlaba, i-Electromagnetic Wave
I-8ssiger 4 i-nicrip ye-niarip ye-hiring, ungqimba olufanelekileyo
Ungayikhetha njani ukuba zingaphi iingqokelela zeeplanga ezisetyenziswa kuyilo kwaye indlela yokuzibeka njani ixhomekeke kwizinto ezininzi ezinjengeenethiwekhi ezifana ne-fannet, iplanga yesixhobo, ubungakanani beBhodi, oko kunjalo. Kufuneka siqwalasele ezi zinto ngendlela epheleleyo. Kwinethiwekhi yomqondiso ngakumbi, ukuphakama kwesixhobo sefowuni, ukuphakama kwePinity yePIN kunye nokuphezulu kwenziwe rhoqo, uyilo lwebhodi ye-Multilayer kufuneka yamkelwe kangangoko kunokwenzeka. Ukufumana ukusebenza kakuhle kwe-EMI, kungcono ukuqinisekisa ukuba umaleko ngamnye womqondiso unendawo yayo yokubhekisa.
