I-Best 6 Layer FR4 ENIG Nge-In Pad PCB Manufacture and Factory |Huihe Circuits

6 Ungqimba FR4 ENIG Nge-Pad PCB

Incazelo emfushane:

Izendlalelo: 6

Ukuphela kwendawo: ENIG

Izinto eziyisisekelo: FR4

Isendlalelo Sangaphandle W/S: 4/3.5mil

Isendlalelo sangaphakathi W/S: 4.5/3.5mil

Ubukhulu: 1.0mm

Okuncane.imbobo ububanzi: 0.2mm

Inqubo ekhethekile: nge-pad

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Impedance Izimpawu ze-PCB

Ngokusho kwethiyori yokudlulisa isignali, isiginali iwumsebenzi wokuguquguquka kwesikhathi nebanga, ngakho yonke ingxenye yesiginali kulayini ingashintsha.Ngakho-ke, ukuvinjelwa kwe-AC kolayini wokudlulisa, okungukuthi, isilinganiso sokushintsha kwamandla kagesi kuya ekushintsheni kwamanje, kunqunywa njengesivimbeli sesici somugqa wokudlulisela.

I-impedance yesici yomugqa wokudlulisela ihlobene kuphela nezici zokuxhumeka kwesignali ngokwayo.Kumjikelezo wangempela, inani lokumelana locingo ngokwalo lingaphansi kwe-impedance esabalalisiwe yesistimu, ikakhulukazi kumjikelezo wemvamisa ephezulu, i-impedance yesici incike ikakhulukazi ekuvimbeleni okusatshalaliswa okubangelwa iyunithi esabalalisiwe i-capacitance kanye neyunithi esabalalisiwe inductance ucingo.

Ukuphazamiseka kwesici kolayini wokudlulisela ofanele kuncike kuphela kumthamo osabalalisiwe weyunithi kanye neyunithi yokusabalalisa i-inductance.

Izinhlobo Ezivamile Ze-Impedans

I-impedance yesici

Kukhompuyutha, ukuxhumana okungenantambo kanye neminye imikhiqizo yolwazi lwe-elekthronikhi, amandla adluliswa kusekethe ye-PCB iyisiginali yegagasi yesikwele (ebizwa ngokuthi i-pulse) eyakhiwe amandla kagesi nesikhathi, futhi ukumelana elibhekana nakho kubizwa ngokuthi yi- characteristic impedance.

I-impedance ehlukile

Amagagasi esiginali amabili afanayo ane-polarity ephambene afakiwe ekugcineni kokushayela futhi adluliselwe imigqa emibili ehlukile ngokulandelana, futhi amasignali amabili ahlukene akhishwa ekugcineni kokwamukela.I-impedance ehlukile yi-impedance zdiff phakathi kwemigqa emibili.

I-impedance yemodi engavamile

I-impedance Zo yomunye wemigqa emibili eya phansi iyafana.

Ngisho nemodi impedance

I-impedance zcom yamagagasi wesignali amabili afanayo anokufakwayo okufanayo kwe-polarity ekugcineni kwedrayivu lapho izintambo ezimbili zixhunywe ndawonye.

I-impedance yemodi evamile

I-impedance Zoe yomunye wemigqa emibili eya phansi iyafana, evame ukuba nkulu kune-impedance yemodi engavamile.