Ngophuhliso lobuchwepheshe bombane, kukho imfuno enkulu kuyilo lwePCB olunesantya esiphezulu ukusebenza. Kuba banokusebenza kunye neesekethe ezidityanisiweyo ngesantya esiphezulu sezixhobo zombane ezininzi, nokuba zilula kakhulu. Xa uyila isantya esiphezulu sePCB, kufuneka ithathele ingqalelo imiba ethile kunye neeparamitha. Ngaphezu koko, uya kufumanisa ukuba imithetho yoyilo lwe-PCB esisiseko kunye neendlela ozifundileyo kukuba kufuneka ufunde. Ngokungathandabuzekiyo, kuya kuba luncedo olukhulu kubayili bePCB kuyilo lwePCB olunesantya esiphezulu.

Ke Luyintoni uYilo lwePCB ekhawulezayo?

Ukuyibeka ngokulula, uyilo lwePCB enesantya esiphezulu kulo naluphi na uyilo apho imfezeko yemiqondiso yakho iqala ukuchatshazelwa ziimpawu ezibonakalayo zebhodi yakho yesekethe, njengokuyila kwakho, ukupakishwa, ukupakishwa komgangatho, uqhagamshelo, njl.njl... Ukuba uqala ukuyila iibhodi kwaye Ukungena kwiingxaki ezifana nokulibaziseka, ukuthomalalisa, ukuthetha ngokungxamisekileyo, ukucamngca, okanye ukukhutshwa, emva koko sivuyisana nawe! Uzifumene kwihlabathi loyilo lwePCB olunesantya esiphezulu.

Yintoni eyenza uyilo olukhawulezayo oluphezulu lube lodwa lixa lengqwalasela ehlawulwe kule miba. Usenokusetyenziselwa ukuyila ibhodi elula apho uninzi lwexesha lakho eligxile ekubekweni kwecandelo kunye nendlela. Kodwa ngoyilo lwesantya esiphezulu, kubaluleke ngakumbi ukuba uqwalasele ngqo apho ubeka khona umkhondo wakho, loluphi ububanzi abaya kuba kubo, basondele kangakanani kwezinye imiqondiso, kwaye luhlobo luni lwezixhobo ezidityanisiweyo. Kwaye xa kufuneka wenze ingqwalasela yolu hlobo, ke inkqubo yakho yoyilo PCB iya kuthatha kwinqanaba elitsha lonke.

Ngoku makhe sixhase umzuzwana. Siyazi ukuba uphawu oluhle loyilo lwesantya esiphezulu kuxa ujongene nemiba yemfezeko yomqondiso, kodwa ithetha ukuthini kanye loo nto? Kufuneka siqonde imiqondiso ngokufutshane.

Isantya esiphezulu izakhono zokuyila PCB

1. Yazi isoftware yoyilo enokubonelela ngeendlela eziphambili

Ifuna izinto ezininzi ezintsonkothileyo kuyilo lwesantya esiphezulu kwisoftware yakho yeCAD. Ngaphezu koko, kunokubakho iinkqubo ezininzi zee-hobbyists, kwaye ngokuqhelekileyo ayinazo iinketho eziphambili ezisekelwe kwii-Web suites. Ke kufuneka ube nokuqonda okungcono kwamandla, isixhobo seCAD.

2. Umzila wesantya esiphezulu

Xa kuziwa kumkhondo wesantya esiphezulu, umyili kufuneka ayazi imigaqo yendlela ebalulekileyo, kubandakanywa nokungasiki iinqwelomoya eziphantsi komhlaba kunye nokugcina iindlela zimfutshane. Ke nqanda imigca yedijithali umgama othile ukusuka kwi-crosstalk, kwaye ukhusele naluphi na uphazamiseko oludala izinto ukuze zonakalise imfezeko yomqondiso.

3. Umkhondo womzila ngolawulo lwe-impedance

Ifuna i-impedance ehambelanayo kwezinye iintlobo zeempawu ezimalunga ne-40-120 ohms. Kwaye iimpawu ezihambelana ne-impedance iingcebiso zii-eriyali kunye nezibini ezininzi ezahlukeneyo.

Kubalulekile ukuba umyili azi ukubala njani ububanzi bomkhondo kunye nesitaki somaleko kumaxabiso ayimfuneko e-impedance. Ukuba akukho milinganiselo ye-impedance echanekileyo, ingenza impembelelo embi kwisignali, eya kukhokelela kwinkohlakalo yedatha.

4. Ubude bokuthelekisa imikhondo

Kukho imigca emininzi kwiibhasi zememori zesantya esiphezulu kunye neebhasi ze-interface. Imigca inokusebenza ngamaza omoya aphezulu, ngoko ke kubalulekile ukuba imiqondiso kufuneka isuke kwi-terminal yothumelo ukuya kwi-terminal yokufumana kwangaxeshanye. Ngaphezu koko, ifuna into ebizwa ngokuba kukuthelekisa ubude. Ngoko ke eyona migangatho iqhelekileyo ichaza amaxabiso okunyamezela afuna ukungqamanisa ubude.

Ungazi njani ukuba ufuna uyilo lwesantya esiphezulu?

1. Ngaba kukho ujongano lwesantya esiphezulu kwibhodi yakho?

Indlela ekhawulezayo yokufumanisa ukuba ngaba ufuna ukuthobela izikhokelo zoyilo olukwisantya esiphezulu kukukhangela ukuba unazo na ujongano lwesantya esiphezulu, umzekelo iDDR, iPCI-e, okanye ujongano lwevidiyo olufana neDVI, HDMI njalo njalo.

Kukho imithetho yoyilo lwesantya esiphezulu ekufuneka uyilandele kulo lonke olu jongano. Ngaphezu koko, nikela iinkcukacha ezichanekileyo zedatha nganye kuxwebhu.

2. Umlinganiselo wobude bomkhondo wakho ukuya kubude beempawu

Ngokubanzi, i-PCB yakho ngokuqinisekileyo iya kufuna uyilo lwesantya esiphezulu ukuba ubude bobude bomyalezo wakho buyafana nobude bomkhondo. Ngenxa yokuba eminye imigangatho efana ne-DDR ifuna imikhondo enobude obuhambelana nokunyamezelana okuncinci.

Inani elikhulu elirhabaxa kukuba ukuba umkhondo wakho wobude kunye nobude bewaveveve inokulawula ngaphakathi komyalelo omnye komnye. Emva koko ungajonga ngcono uyilo lwesantya esiphezulu.

3. IPCB enojongano olungenazingcingo

Njengoko usazi, iPCB nganye ine-eriyali, ifuna ukuyila iisignali zesantya esiphezulu nokuba yintoni na ngesidibanisi okanye ebhodini. Ngaphezu koko, ii-eriyali ezikwibhodi zikwafuna i-impedance ekufutshane ukuze itshatise ubude bengoma.

Kuya kufuneka idibaniswe neziqhagamshelo ezinexabiso elithile le-impedance kwiibhodi zeesekethe ezineekhonkco ze-SMA okanye ezifanayo.

Ufuna High Frequency PCB Ixabiso kwaye Fumana PCB izixhobo ncomo,Thumela imeyile kell@ymspcb.com.