Funda mayelana newashi ku-PCB

b, amadivayisi ahlobene kuphela nesekhethi yewashi endaweni yewashi le-PCB, gwema ukubeka amanye amasekhethi, futhi ungabeki eminye imigqa yesignali eduze noma ngaphansi kwekristalu: Ukusebenzisa indiza yaphansi ngaphansi kwesekhethi ekhiqiza iwashi noma ikristalu, uma amasignali adlula endizeni, ephula umsebenzi wendiza efakwe kumephu, uma isignali idlula endizeni yaphansi, kuzoba ne-loop encane yomhlabathi futhi kuthinte ukuqhubeka kwendiza yaphansi, futhi lezi zihibe zomhlaba zizodala izinkinga kumafrikhwensi aphezulu.

c.Kumakristalu ewashi neziyingi zewashi, izindlela zokuvikela zingathathwa ukuze kucutshungulwe ukuvikela;

d, uma igobolondo lewashi liyinsimbi, umklamo we-PCB kufanele ubekwe ngaphansi kwe-crystal yethusi, futhi uqinisekise ukuthi le ngxenye kanye nendiza ephansi egcwele inokuxhumana okuhle kukagesi (ngokusebenzisa umhlabathi onama-porous).

• Izinzuzo zokugandaya ngaphansi kwamakristalu wewashi:

Isekhethi ngaphakathi kwe-crystal oscillator ikhiqiza i-RF yamanje, futhi uma ikristalu ivalelwe endlini yensimbi, iphinikhodi yamandla e-DC iwukuthembela kwereferensi kagesi kagesi we-DC kanye nereferensi ye-RF yamanje ye-loop ngaphakathi kwekristalu, ikhulula isikhashana samanje esikhiqizwa Imisebe ye-RF yezindlu ngokusebenzisa indiza yaphansi.Ngamafuphi, igobolondo lensimbi liwuthi olunesiphetho esisodwa, futhi ungqimba lwesithombe oluseduze, ungqimba lwendiza ephansi futhi ngezinye izikhathi izendlalelo ezimbili noma ngaphezulu zanele ukuhlanganisa imisebe yamanje ye-RF phansi.I-crystal floor nayo ilungele ukuqeda ukushisa.Isekhethi yewashi kanye ne-crystal underlay kuzohlinzeka ngendiza yokwenza imephu, enganciphisa imodi evamile yamanje ekhiqizwa i-crystal ehambisanayo nesekhethi yewashi, ngaleyo ndlela yehlise imisebe ye-RF.Indiza yaphansi futhi idonsa imodi yokuhlukanisa i-RF yamanje.Le ndiza kufanele ixhunywe endizeni yaphansi ephelele ngamaphoyinti amaningi futhi idinga izimbobo eziningi, ezinganikeza ukuvimba okuphansi.Ukuze kuthuthukiswe umphumela wale ndiza ephansi, isifunda sejeneretha yewashi kufanele sibe seduze nale ndiza ephansi.

Amakristalu e-Smt-packaged azoba nemisebe yamandla e-RF engeziwe kunamakristalu agqoke insimbi: Ngenxa yokuthi amakristalu abekwe phezulu ngokuvamile amaphakheji epulasitiki, i-RF yamanje engaphakathi kwekristalu izokhanya esikhaleni futhi ihlanganiswe namanye amadivayisi.