4-Layer PCB Solutions: EMC uye Signal Integrity Impacts

Iko kukanganiswa kwe4-layer redunhu bhodhi routing uye layer spacing pakuenderana kwemagetsi uye kutendeseka kwechiratidzo kunowanzo kuunza matambudziko akakura kune mainjiniya nevagadziri.Kunyatsogadzirisa nyaya idzi kwakakosha kuti uve nechokwadi chekushanda kwakanaka uye kuita kwakakwana kwemidziyo yemagetsi.Mune ino blog post, isu tichakurukura maitiro ekugadzirisa dambudziko rekukanganisa kwe4-layer redunhu bhodhi wiring uye layer spacing pakuenderana kwemagetsi uye kutendeseka kwechiratidzo.

Kana zvasvika pakukanganisa kwe4-layer redunhu bhodhi routing pane electromagnetic kuenderana (EMC) uye chiratidzo chekuvimbika, chimwe chezvinetso chikuru chinogona kuitika.Crosstalk ndiko kubatanidza kusingadiwe kwesimba remagetsi pakati pezviteshi zvepadyo kana zvikamu paPCB, zvichikonzera kukanganisa kwechiratidzo uye kuderedzwa.Kuvharira kwakaringana uye kupatsanurana pakati pezvironda zvinogona kuderedza zvakanyanya dambudziko iri.

Kukwirisa EMC uye chiratidzo chekuvimbika, zvakakosha kushandisa dhizaini software iyo inogona kuita chaiyo yekufananidza uye kuongorora.Nekushandisa maturusi esoftware senge electromagnetic field solvers, vagadziri vanogona kuongorora kugona kwecrosstalk munzvimbo chaidzo vasati vaenderera mberi nekuita prototyping.Iyi nzira inochengetedza nguva, inoderedza mari, uye inovandudza huwandu hwemhando yekugadzira.

Chimwe chinhu chekufunga nezvacho kusarudzwa kwePCB yekuisa zvinhu.Iko kusanganiswa kweiyo chaiyo dielectric zvinhu uye ukobvu chaihwo kunogona kukanganisa zvakanyanya maitiro emagetsi ePCB.Yepamusoro-mhando yemidziyo ine yakaderera dielectric kurasikirwa uye inodzorwa impedance zvivakwa zvinobatsira kuwedzera kutendeseka kwechiratidzo uye kuderedza kuburitswa kwemagetsi.

Pamusoro pezvo, iyo nzvimbo yekuyera mukati me4-layer redunhu bhodhi inogona kukanganisa zvakanyanya EMC uye chiratidzo chekuvimbika.Sezvineiwo, nzvimbo iri pakati pePCB akaturikidzana inofanirwa kuvandudzwa kuti ideredze kukanganiswa kwemagetsi uye kuve nechokwadi chekuparadzira chiratidzo.Zviyero zveindasitiri uye dhizaini dhizaini inofanirwa kutevedzwa pakusarudza iyo yakakodzera dhizaini nzvimbo kune chaiyo application.

Kugadzirisa matambudziko aya, nzira dzinotevera dzinogona kushandiswa:

1. Kungwarira kwechikamu kuiswa:Kushanda kwechikamu kuiswa kunobatsira kuderedza crosstalk paPCB.Nekuisa zvine hungwaru zvinhu, vagadziri vanogona kudzikisa kureba kweyepamusoro-yekumhanya masaini maratidziro uye kuderedza kunogona kuitika kwemagetsi.Iyi nzira inonyanya kukosha kana uchibata nezvikamu zvakakosha uye masekete anonzwira tsitsi.

2. Ground layer design:Kuwana yakasimba yepasi pasi ndiyo yakakosha tekinoroji yekudzora EMC nekuvandudza chiratidzo chekuvimbika.Iyo yepasi layer inoita senhoo, ichidzikisa kupararira kwemafungu emagetsi uye kudzivirira kupindira pakati peakasiyana masaini maratidziro.Zvakakosha kuve nechokwadi chekugadzirisa maitiro ekugadzirisa, kusanganisira kushandisa nzira dzakawanda dzekubatanidza ndege dzepasi pamatanho akasiyana.

3. Multilayer stackup dhizaini:Yakakwana stackup dhizaini inosanganisira kusarudza iyo yakakodzera layer inoteedzana yechiratidzo, pasi, uye masimba masimba.Nekungwarira akagadzirwa stackups anobatsira kuwana inodzorwa impedance, kuderedza crosstalk, uye kunatsiridza chiratidzo chekuvimbika.Zviratidzo zvekumhanya-mhanya zvinogona kufambiswa pachikamu chemukati kuti udzivise kukanganiswa kubva kunze.

Unyanzvi hwaCapel mukusimudzira EMC uye chiratidzo chekuvimbika:

Nemakore gumi nemashanu echiitiko, Capel inoenderera mberi nekuvandudza maitiro ayo ekugadzira uye kushandisa matekinoroji epamusoro kukwirisa EMC uye chiratidzo chekuvimbika.Zvakanakisa zveCapel ndezvizvi:
- Tsvakurudzo Yakadzama:Capel inodyara mukutsvagisa kwakazara kuti ione mafambiro ari kubuda uye zvinonetsa muPCB dhizaini kuti igare pamberi peiyo curve.
-State-of-the-art zvishandiso:Capel inoshandisa midziyo yemazuva ano kugadzira maPCB anochinjika uye maPCB akaomarara, kuve nechokwadi chepamusoro-soro uye mhando.
- Nyanzvi Nyanzvi:Capel ine timu yevashandi vane ruzivo vane hunyanzvi hwakadzama mumunda, vachipa ruzivo rwakakosha uye rutsigiro rwekusimudzira EMC uye chiratidzo chekuvimbika.

Muchidimbu

Kunzwisisa kukanganiswa kwe4-layer redunhu bhodhi routing uye layer spacing pane electromagnetic kuenderana uye kutendeseka kwechiratidzo kwakakosha pakubudirira dhizaini yemagetsi dhizaini.Nokushandisa kuenzanisa kwepamusoro, kushandisa zvinhu zvakakodzera, uye kushandisa mazano ekugadzira maitiro, mainjiniya anogona kukunda matambudziko aya uye ave nechokwadi chekushanda kwePCB yose uye kuvimbika.Neruzivo rwakakura uye kuzvipira kune zvakanakisisa, Capel inoramba iri shamwari yakavimbika mukukunda matambudziko aya.Nekushandisa nzira dzinoshanda mukurongeka kwebhodhi, kugadzika uye chiratidzo chekufambisa, uku uchisimudzira hunyanzvi hweCapel, vagadziri vanogona kuderedza EMI, kuwedzera kutendeseka kwechiratidzo, uye kuvaka mabhodhi akavimbika uye anoshanda.