Nekuvandudzwa kwehunyanzvi hwemagetsi, pane kudiwa kukuru kwepamusoro PCB dhizaini kushanda. Nekuti ivo vanogona kushanda nemaseketi akabatanidzwa pakumhanya kwakanyanya kune akawanda emagetsi maturusi, kunyangwe ari nyore. Paunenge uchigadzira yakakwira yekumhanya PCB, inoda kutora zvimwe zvinhu uye ma paramita mukutarisisa. Zvakare, iwe uchaona kuti iyo yakakosha PCB dhizaini mitemo uye nzira dzawakagona ndizvo zvaunoda kudzidza. Hazvina basa kutaura, zvichave zvekubatsira kukuru kune PCB vagadziri mukumhanyisa PCB dhizaini.

Saka Chii Chinonzi High Speed ​​​​PCB Dhizaini?

Kuzvitaura zviri nyore, high speed PCB dhizaini chero dhizaini uko kutendeseka kwezviratidzo zvako kunotanga kukanganiswa nehunhu hwedunhu redunhu rako, senge dhizaini yako, kurongedza, layer stackup, kusanganisa, nezvimwe… Ukatanga kugadzira mabhodhi uye kusangana nematambudziko senge kunonoka, kudzikisira, crosstalk, kuratidza, kana kubuda, wobva wakorokotedza! Wakazviwana uri munyika yekumhanyisa PCB dhizaini.

Chii chinoita kuti dhizaini yekumhanyisa ive yakasarudzika huwandu hwekutarisisa kwakabhadharwa kune idzi nyaya. Iwe unogona kushandiswa kugadzira bhodhi rakareruka apo yakawanda yenguva yako yakatarisa iri pakuiswa kwechikamu uye nzira. Asi nekumhanya kwakanyanya dhizaini, zvinova zvakanyanya kukosha kuti utarise chaipo pauri kuisa zviteshi zvako, kuti ihupamhi hwakaita sei, iri padyo sei kune mamwe masaini, uye rudzii rwezvikamu zvaakabatana. Uye kana iwe uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge uchinge richifunga nezverudzi urwu, ipapo yako PCB dhizaini maitiro anotora padanho idzva.

Zvino ngatidzokei shure kwechinguva. Isu tinoziva kuti chiratidzo chakanaka chedhizaini yekumhanya ndeye paunenge uchibata nezviratidzo zvekuvimbika, asi zvinorevei chaizvo? Tinofanira kunzwisisa zviratidzo muchidimbu.

High kumhanya PCB dhizaini hunyanzvi

1. Ziva software yekugadzira iyo inogona kupa sarudzo dzepamusoro

Inoda akawanda akaomarara maficha ekumhanyisa madhizaini mune yako CAD software. Zvakare, panogona kunge pasina zvirongwa zvakawanda zvevanofarira, uye kazhinji haina sarudzo dzepamberi dzinobva paWebhu masutu. Saka iwe unofanirwa kuve nekunzwisisa kuri nani kwesimba, CAD chishandiso.

2. High speed routing

Kana zvasvika kune yakakwira yekumhanya, mugadziri anofanirwa kuziva mitemo yenzira yakakosha, kusanganisira kusacheka ndege dzepasi uye kuchengetedza nzira dziri pfupi. Saka dzivirira mitsetse yedhijitari imwe chinhambwe kubva kune crosstalk, uye dzivirira chero kukanganisa kugadzira zvinhu kuitira kukuvadza chiratidzo chechiratidzo.

3. Routing traces ine impedance control

Inoda impedance yekufananidza kune mamwe marudzi emasaini angangoita 40-120 ohms. Uye hunhu impedance inofananidzwa mazano ndeye antennae uye akawanda akasiyana maviri maviri.

Izvo zvakakosha kuti mugadziri azive nzira yekuverenga trace wide uye layer stack yeinodiwa impedance values. Kana pasina chaiyo impedance tsika, inogona kuita yakakomba mhedzisiro pachiratidzo, izvo zvinozotungamira kune huwori hwe data.

4. Kureba kunoenderana nematehwe

Kune mitsetse mizhinji muyekumhanya ndangariro mabhazi uye interface mabhazi. Mitsetse inogona kushanda zvakanyanya, saka zvakakosha kuti masaini anofanirwa kunge ari kubva kuchiteshi chekufambisa kuenda kunzvimbo yekugamuchira panguva imwe chete. Uyezve, inoda chinhu chinonzi kureba matching. Saka miyero yakajairika inotsanangura hunhu hwekushivirira hunoda kuenderana nehurefu.

Nzira yekuziva sei kana iwe uchida yakakwirira yekumhanya dhizaini?

1. Iko kune yakakwirira yekumhanyisa interface mubhodhi rako?

Nzira yekukurumidza yekuona kana iwe uchida kutevedzera dhizaini yekumhanyisa dhizaini ndeyekutarisa kuti une kumhanya kwepamusoro, semuenzaniso DDR, PCI-e, kana kunyange vhidhiyo interfaces seDVI, HDMI zvichingodaro.

Kune mamwe ekumhanyisa dhizaini mitemo yaunofanirwa kutevedzera kune ese aya mainterfaces. Chii zvakare, ipa iyo chaiyo yakatarwa yeimwe neimwe data mune zvinyorwa.

2. Chiyero chehurefu hwekutsvaga kwako kune wavelength yezviratidzo

Kazhinji, PCB yako inozoda dhizaini yekumhanyisa kana iwo wavelength yemeseji yako yakafanana nehurefu hwekutsvaga. Nekuti mamwe mazinga akadai seDDR anoda marata ane kureba anoenderana nekushoma kushivirira.

Chimiro chakakasharara ndechekuti kana yako yekutevera kureba uye wavelength inogona kudzora mukati mehurongwa hweumwe neumwe. Wobva waona zvirinani madhizaini ekumhanya.

3. PCB ine wireless interfaces

Sezvaunoziva, PCB yega yega ine antenna, inoda dhizaini yemasaini ekumhanya zvisinei kuti chii kuburikidza nekubatanidza kana pabhodhi. Zvakare, onboard antennas inodawo kuvharika kwepedyo kuti ienderane netune kureba.

Iyo inozoda kubatana kune zvibatanidza zvine chaiyo impedance kukosha kwemabhodhi edunhu ane SMA majoini kana akafanana.

Unoda High Frequency PCB Mutengo uye Tora PCB zvinhu zvinokurudzira, Tumira tsamba kune kell@ymspcb.com.