6 Layer FR4 ENIG Impedance Control PCB
PCB Impedance Line Dhizaini
1.Mukuita kwePCB LAYOUT, funga nezve izvo zvakakosha mamiriro anodiwa kudzora iyo impedance ndeaya: mutsara upamhi, mutsara kureba, mutsara kureba, impedance mutsara shielding reference layer, zvinoenderana nezvinodiwa izvi zvichaiswa munzvimbo yakakodzera yemutsara we impedance. .
2. Iyo shielding reference layer inosarudza mutsara uri padyo nejira apo mutsara we impedance uripo.Nzvimbo inopindirana yemutsara we impedance izere remhangura pepa, kuitira kuti ive nechokwadi chekuti kutsauka kweiyo impedance kukosha kunodzoreka.Mukugadzirwa chaiko, zvinoenderana neiyo LAYOUT dhizaini, iyo yepedyo pepa remhangura kune iyo impedance mutsara inosarudzwa seyereferenzi layer.Kana pasina pepa remhangura munzvimbo inoenderana, iyo impedance haigone kudzorwa.Kana pepa remhangura risingakwanisi kudzivirira zvachose mutsara we impedance, iyo impedance kutsauka haidzoreki.
3, Kugoverwa kweiyo impedance mutsara kutarisisa: iyo hunhu impedance ingori mutsara mumwe chete, inongoda kufunga nezvehupamhi hwemutsara uye kureba kwemutsara.Differential impedances inofanirwa kuve nemitsara miviri yehupamhi hwemutsara wakafanana wakanyatsoenderana kune mumwe nemumwe.Coplanar impedance ndiko kupindirana pakati pemutsara nemhangura yepasi, saka upamhi hwemutsara hunofanirwa kunge hwakafanana, mativi ese emutsara akakomberedzwa nemhangura yepasi, uye chinhambwe kubva pamutsara kusvika pasi mhangura chakafanana kubva. kutanga kusvika pakupedzisira.
Chii Chinonzi Impedance Kudzora PaPCB Inoshandiswa?
Inodzorwa impedance inosarudzwa apo chiratidzo chinofanirwa kunge chine imwe impedance kuti ishande nemazvo.Mune yakakwira frequency application, iyo inogara inopesana inofanirwa kuchengetedzwa mukati mebhodhi kuti ive nechokwadi chekutendeseka kweiyo data inotapurirwa uye kujeka kwechiratidzo.Iyo yakareba iyo nzira yekondakita kana yakakwira frequency, iyo yakawanda kugadzirisa inodiwa.Kushaikwa kwekuomarara padanho iri kunogona kuwedzera nguva yekuchinja kwechigadzirwa chemagetsi kana dunhu uye kutungamirira kune zvikanganiso zvisingatarisirwi.
Kusadzora impedance yakaoma kuongorora mushure mekunge zvikamu zvaungana padunhu.Ma Components ane akasiyana siyana ekushivirira zvichienderana nemujenya.Mukuwedzera, maitiro avo anogona kuchinjwa nekuchinja kwekushisa, izvo zvinogona kutungamirira kumatambudziko.Muchiitiko ichi, kutsiva chikamu kunoratidzika seyo mhinduro, asi chaizvoizvo ndiko kusakwana kweimpedance ye conductor wiring iyo ndiyo dambudziko.
Naizvozvo, PCB dhizaini inofanirwa kutarisa conductor wiring impedance uye kushivirira kwayo pachine nguva kuti ive nechokwadi chekuti chikamu chetsika chinozadzisa zvinodiwa.
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