I-10 Layer ENIG FR4 Impedance Control PCB
Kungani Ulawula Impedance Kuma-PCB?
Uma isignali idinga i-impedance ethile ukuze isebenze kahle, i-impedance elawulwayo kufanele ikhethwe.Kuzinhlelo zokusebenza ze-high-frequency, ibhodi ye-elekthronikhi ephelele ene-impedance eqhubekayo ibalulekile ukuze kuvikelwe idatha edlulisiwe ekonakaleni nokugcina ukucaca kwesignali.Uma i-trajectory iba yinde noma inyuka imvamisa, kudingeka ukuzivumelanisa nezimo okwengeziwe.Noma yikuphi ukuntuleka kokuqina kulesi sigaba kungandisa isikhathi sokushintshwa kwemishini kagesi noma amasekethe futhi kuholele emaphutheni angalindelekile.
Uma ingxenye ifakiwe kumjikelezo, i-impedance engalawulwa kunzima ukuyihlaziya.Izingxenye zinamandla ahlukene okubekezelelana kuye ngeqoqo lawo.Ngaphezu kwalokho, ukucaciswa kwabo kungaphansi kwezinguquko zokushisa, okungaholela ekuhlulekeni.Kulokhu, ukubuyisela ingxenye kungase kubonakale njengesixazululo ekuqaleni, kodwa empeleni, ukuvinjelwa komkhondo okungalungile kuwumsuka wenkinga.
Kungakho umkhondo we-impedance kanye nokubekezelelana kwawo kufanele kubhekwe kusenesikhathiibhodi lesifunda eliphrintiwe(PCB)umklamo.Umklami kufanele abambisane nomkhiqizi ukuze aqinisekise ukuthi inani lengxenye liyahlangatshezwa.
Izici zokuphazamiseka kwe-PCB
I-PCB yokulandelela i-impedance inezici ezimbalwa zokufunda i-impedance.Ukuvimbela ukwakheka kwebhodi le-PCB kufaka phakathi: imvume, ubude, ububanzi, ukuphakama, imikhawulo yokukhiqiza ye-PCB/ukubekezela, nezici zebanga phakathi kwethrekhi nenye ithusi.
Izicelo Ze-Impedans Control PCB
Ukulawulwa kwe-impedance kuhilela ukulinganisa ukuthintana kwezindlela ezithile zokuqhuba ngesikhathi sokukhiqiza ibhodi nokuqinisekisa ukuthi kungaphakathi kwemikhawulo ekhulunywe ngumklami.Le nqubo iyabiza, kodwa iye yamukeleka emphakathini kusukela ekuqaleni kwawo-2000 njengoba imvamisa yezingxenye ze-elekthronikhi iqhubeka nokukhula.Isibonelo, isebenzise emikhiqizweni elandelayo:
Ezokuxhumana nge-analog nedijithali
Ukucutshungulwa kwesignali yevidiyo
Ibhokisi le-inthanethi, i-TV, i-GPS, umdlalo wevidiyo, ikhamera yedijithali
Amakhompyutha, amaphilisi, amafoni
Imodyuli yokulawula imoto
