Thatha isithethi seBluetooth njengomzekelo wokudibanisa ulwazi olusisiseko lwe PCB uyilo kwimeko ebonakalayo, kwaye uchaze umsebenzi kunye namava asebenzayo kunye nezakhono zesoftware yoyilo lwe-PCB ngenkqubo yokusebenza. Le khosi iya kufunda ulwazi olunxulumene nentambo ye-PCB ngokuchaza isishwankathelo kunye nemigaqo yoyilo lweentambo.

Amanqaku aphambili kolu phando:

1. Ukujonga ngokubanzi iingcingo kunye nemigaqo

2.PCB iimfuno ezisisiseko kweentambo

3. Ukulawulwa kokungasebenzi kwe-PCB kweentambo

Ubunzima bokufunda ngeli xesha:

1. Ukujonga ngokubanzi iingcingo kunye nemigaqo

2. Ukulawulwa kokungasebenzi kwe-PCB kweentambo

1. Ukujonga ngokubanzi iingcingo kunye nemigaqo

Kuyilo lwe-PCB yemveli, i-wiring ebhodini isebenza kuphela njengomthuthi woxhumano lomqondiso, kwaye injineli yoyilo ye-PCB ayifuni ukuqaphela iiparameter zokuhambisa ii-wiring.

Ngophuhliso olukhawulezileyo lweshishini le-elektroniki, idatha eginya ukusuka kwii-megabytes ezimbalwa ngexesha leyunithi, amashumi ee-megabytes ukuya kwinqanaba le-10Gbit / s kuzise ukukhula ngokukhawuleza kwethiyori yesantya esiphezulu, i-wiring ye-PCB ayisosiphatho sokudibanisa , kodwa ukusuka kwithiyori yomgca wokudlulisa ukuhlalutya ifuthe leeparameter ezahlukeneyo zokuhambisa

Kwangelo xesha, ubunzima kunye nokuxinana kwePCB kuyanda ngaxeshanye, ukusuka kuyilo lomngxunya oqhelekileyo kuyilo lomngxunya omncinci kuyilo oluninzi lwemingxunya eyimfama, kusekho ukungcwatywa okungcwatyelweyo, isikhongozeli esingcwatyelweyo, uyilo lwentambo ye-PCB ephezulu kakhulu ukuzisa ubunzima obukhulu ngaxeshanye, ikwafuna injineli yoyilo lwe-PCB ngakumbi ukuqonda okunzulu kweenkqubo zePBB kunye nenkqubo yokulungisa.

Ngophuhliso ngesantya esiphezulu kunye nobuninzi be-PCB, iinjineli zoyilo ze-PCB ziya ngokuya zibaluleke ngakumbi kuyilo lwehardware, ngelixa imiceli mngeni yoyilo ye-PCB iya isiba ngakumbi nangakumbi, kwaye iinjineli zoyilo kufuneka zazi ngakumbi nangakumbi ngamanqaku olwazi.

Ezimbini, uhlobo lwentambo ye-PCB

Iindidi zeentambo kwibhodi ye-PCB ikakhulu zibandakanya intambo yomqondiso, umbane kunye nocingo lomhlaba. Phakathi kwabo umgca wesiginali yi-wiring exhaphakileyo, uhlobo lukhulu ngakumbi. Usenayo i-mono line ngokwendlela ye-wiring, umahluko kumgca.

Ngokwendlela yokwakheka kweentambo, inokwahlulahlulwa ibe ngumgca webheyibhile kunye nomgca we-microstrip.

Iii. Ulwazi olusisiseko ngentambo yePCB

Ukufakelwa kwe-PCB ngokubanzi kunezi mfuno zilandelayo:

(1) I-QFP, i-SOP kunye nezinye iipakethe ezixandekileyo kufuneka zikhokelwe ziphume kwiziko le-PIN (ngokubanzi kusetyenziswa ubume beplanga).

(2) Ilaphu (1) i-QFP, i-SOP kunye nezinye iipakeji zepads ezixande ngaphandle kocingo, ukusuka kwiziko le-PIN (ngokubanzi kusetyenziswa imilo. Umgama ukusuka emgceni ukuya emaphethelweni epleyiti awuyi kuba ngaphantsi kwe-20MIL.

Qaphela: kulo mzobo ungasentla, umbala obomvu yi-OUTLINE yesakhelo sangaphandle sebhodi, kwaye oluhlaza yi-routkeepin yendawo yonke ye-wiring yebhodi (i-Routkeepin ingaphezulu kwe-20mil indent ehambelana ne-OUTLINE).

Qaphela: Eli cala lebhodi likwabandakanya ukuvulwa kwefestile, indawo yokugaya, ileli, indawo yokugaya ngokugaya ukusika kwemizobo.

(3) Ngaphantsi kwezixhobo zeqokobhe lesinyithi, eminye imingxunya yenethiwekhi ayivumelekanga, kunye nokubiyelwa komhlaba (iigobolondo eziqhelekileyo zesinyithi zibandakanya i-crystal oscillator, ibhetri, njl.

(4) Iingcingo azizukuba neempazamo ze-DRC, kubandakanya negama elifanayo leempazamo ze-DRC, ngaphandle koyilo oluhambelanayo, ngaphandle kweempazamo ze-DRC ezibangelwe kukupakisha ngokwakho.)

(5) Akukho nethiwekhi ingadityaniswanga emva koyilo lwe-PCB, kwaye inethiwekhi ye-PCB kufuneka ihambelane nomzobo wesekethe.

He is not allowed to attend the Dangline.

(7) Ukuba kuyacaca ukuba iiphedi ezingasebenziyo azidingi kugcinwa, kufuneka zisuswe kwifayile yokuzoba ekhanyayo.

(8) Kuyacetyiswa ukuba ungaqali kwisiqingatha somgama ukusuka kwi-2MM enkulu yeentlanzi

Kuyacetyiswa ukuba kusetyenziswe iintambo zangaphakathi kwiintambo zesiginali

(10) Kuyacetyiswa ukuba inqwelomoya ohambelana nayo okanye inqwelomoya yomhlaba yommandla wesiginali esinejubane igcinwe igcinekile kangangoko kunokwenzeka

Kuyacetyiswa ukuba iintambo zisasazwe ngokulinganayo. Ubhedu kufuneka lubekwe kwiindawo ezinkulu ngaphandle kweentambo, kodwa ulawulo lwe-impedance alufanele luchaphazele

(12) Kuyacetyiswa ukuba yonke i-wiring kufuneka ibanjiwe, kwaye i-Angfering Angle yi-45 °

(13) Kuyacetyiswa ukuba kuthintelwe imigca yesiginali ekuzenzeleni ngokwalo ii-loops ezinobude becala elingaphezu kwe-200ML kwimigca emelene nayo

(14) Kuyacetyiswa ukuba ulwalathiso lweengcingo zeengqimba ezikufutshane lube lolwakhiwo lwe-orthogonal

Qaphela: Ukubiyelwa kweengcamba ezikufutshane kufuneka kuthintelwe kwicala elifanayo ukunciphisa intetho enqamlezileyo phakathi kweendlela. Ukuba ayinakuphepheka, ngakumbi xa inqanaba lomqondiso liphezulu, umgangatho wenqwelomoya kufuneka uthathelwe ingqalelo ukwahlula umaleko ngamnye weentambo, kwaye umqondiso womhlaba kufuneka ubeke umgca ngamnye wesiginali.

4. Ukulawulwa kokungasebenzi kwe-PCB kweentambo

Inkcazo: Ububanzi bomgca ekuqhubeni i-PCB yahlulwe yangamacandelo amabini, ububanzi bendawo ephezulu kunye nobubanzi bomphezulu osezantsi.

Umzobo obonisa ubume bokubala kwe-impedance yomgca wesiphelo se-microstrip yomgca omnye:

Umzobo wesikim wokubala kwe-impedance komgca wesahluko se-microstrip:

Umzobo obonisa ubume bokubala kwempedance yomgca wokubamba umqondiso wesiphelo esinye:

Umzobo obonisa ubume bebhanti ye-impedance yokubala komqondiso umahluko:

Umzobo obonisa ubume bokubala kwempedance yomgca wesiphelo se-microstrip (kunye nocingo lomhlaba weploplanar):

Umzobo obonisa ubume bokubala kwe-impedance yokwahlulahlula umgca kwe-microstrip (kunye nocingo lomhlaba weploplanar):

Olu luphononongo lwentambo kunye nemigaqo ye-ALLEgro yesoftware yoyilo lwePCB.