Isu tese tinoziva kuti kugadzira PCB bhodhi ndeye kushandura iyo yakagadzirirwa schematic kuita chaiyo PCB board.Ndapota usarerutsa maitiro aya.Pane zvinhu zvakawanda zvinogoneka mumusimboti asi zvakaoma kuwana mupurojekiti, kana vamwe vanogona kuita zvinhu izvo vamwe vanhu vasingakwanise kuwana Mood.
Iwo maviri matambudziko makuru mumunda wemicroelectronics ndeyekugadzirisa kwepamusoro-frequency masaini uye asina simba masaini.Mune izvi, PCB yekugadzira level inonyanya kukosha.Iyo imwechete musimboti dhizaini, zvikamu zvakafanana, vanhu vakasiyana vakagadzirwa PCB vachava nemigumisiro yakasiyana, saka sei kuita yakanaka PCB bhodhi?
1.Iva akajeka pamusoro pezvinangwa zvako zvekugadzira
Mushure mekugamuchira basa rekugadzira, chinhu chekutanga kuita kujekesa zvinangwa zvekugadzira, zvinova zvakajairwa PCB bhodhi, yakakwirira frequency PCB bhodhi, diki chiratidzo chekugadzirisa PCB bhodhi kana zvese zvakakwirira frequency uye diki chiratidzo chekugadzirisa PCB bhodhi.Kana iri yakajairwa PCB bhodhi, chero bedzi marongerwo ari ane musoro uye akashambidzika, saizi yemagetsi ndeyechokwadi, senge yepakati mutoro mutsetse uye mutsara wakareba, zvinodikanwa kushandisa dzimwe nzira dzekugadzirisa, kuderedza mutoro, kureba mutsara simbisa dhiraivha, chinotariswa ndechekudzivirira kutaridzika kwemutsara wakareba.Kana paine mitsara inodarika 40MHz pabhodhi, kutarisisa kwakakosha kunofanirwa kuitwa kune iyi mitsetse yemasaini, sekutaura-pakati pakati pemitsara nezvimwe nyaya.Kana kuwanda kwacho kwakakwirira, pachava nemuganho wakanyanyisa pakureba kwetambo.Zvinoenderana netiweki dzidziso yeakagoverwa parameters, kudyidzana pakati peyepamusoro-kumhanya dunhu uye waya dzayo ndiyo inogadzirisa chinhu, iyo isingagoni kuregererwa muhurongwa hwekugadzira.Nekuwedzera kwekumhanya kwegedhi, kupikisa pamutsara wechiratidzo kuchawedzera zvinoenderana, uye iyo crosstalk pakati pemitsara yechiratidzo ichawedzera muchikamu chakananga.Kazhinji, mashandisirwo emagetsi uye kupisa kwekupisa kwemaseketi ekumhanya kwakakurawo, saka kutarisisa kwakakwana kunofanirwa kubhadharwa kune yakakwirira-kumhanya PCB.
Kana paine chiratidzo chisina kusimba chemillivolt level kana kunyange microvolt level pabhodhi, kutarisirwa kwakakosha kunodiwa kune iyi mitsetse yechiratidzo.Zvikwangwani zvidiki hazvina kusimba uye zviri nyore kukanganiswa kubva kune mamwe masaini akasimba.Matanho ekudzivirira anowanzodikanwa, zvikasadaro chiratidzo-ku-ruzha reshiyo ichaderedzwa zvakanyanya.Kuitira kuti masaini anobatsira anyudzwe neruzha uye haakwanise kutorwa zvine mutsindo.
Kutumirwa kwebhodhi kunofanirwawo kutariswa muchikamu chekugadzira, nzvimbo yemuviri yenzvimbo yekuyedza, kuparadzaniswa kwenzvimbo yekuyedza uye zvimwe zvinhu hazvigone kufuratirwa, nekuti mamwe masaini madiki uye yakakwirira frequency masaini haagone kuwedzerwa zvakananga iyo probe yekuyera.
Pamusoro pezvo, zvimwe zvinhu zvakakosha zvinofanirwa kutariswa, senge nhamba yezvikamu zvebhodhi, chimiro chekurongedza chezvikamu zvakashandiswa, simba remagetsi rebhodhi, nezvimwe. Usati waita PCB board, kugadzira dhizaini yekugadzira. chinangwa mupfungwa.
2.Ziva marongerwo uye wiring zvinodiwa zvemabasa ezvikamu zvakashandiswa
Sezvatinoziva, zvimwe zvakakosha zvinodikanwa mukugadzirisa uye wiring, senge LOTI uye analog chiratidzo amplifier inoshandiswa neAPH.Iyo analog chiratidzo amplifier inoda yakagadzikana magetsi uye diki ripple.Iyo analogi diki chiratidzo chikamu chinofanira kunge chiri kure nemagetsi mudziyo sezvinobvira.PaOTI bhodhi, chikamu chidiki chekusimudzira chiratidzo chakashongedzerwawo nenhoo yekudzivirira kurasika kwemagetsi kukanganiswa.Iyo GLINK chip inoshandiswa pa NTOI board inoshandisa ECL maitiro, simba rekushandisa rakakura uye kupisa kwakanyanya.Dambudziko rekupisa kupisa rinofanira kutariswa mukurongeka.Kana kupisa kwechisikigo kuchishandiswa, GLINK chip inofanira kuiswa panzvimbo iyo kutenderera kwemhepo kunotsvedza, uye kupisa kunobudiswa hakugoni kuva nekukanganisa kukuru kune mamwe machipisi.Kana iyo bhodhi yakashongedzerwa nenyanga kana zvimwe zvigadziriso zvine simba-pamusoro, zvinokwanisika kukonzeresa kusvibiswa kwakakomba kune magetsi poindi iyi inofanirawo kukonzera kutarisisa kwakakwana.
3.Component marongerwo ekufunga
Chimwe chezvinhu zvekutanga kufunga mukurongeka kwezvikamu ndezvekuita kwemagetsi.Isa zvikamu zvine hukama hwepedyo pamwe chete sezvinobvira.Kunyanya kune mamwe mitsara yakakwirira-yekumhanya, marongerwo anofanirwa kuita kuti ive pfupi sezvinobvira, uye chiratidzo chesimba uye zvigadziriso zviduku zvinofanira kuparadzaniswa.Pamusoro pekusangana nekuita kwedunhu, zvikamu zvinofanirwa kuiswa zvakatsvinda, zvakanaka, uye zviri nyore kuyedza.Iyo mechanical size yebhodhi uye nzvimbo ye socket inofanirawo kutariswa zvakanyanya.
Iyo yekutapurirana inononoka nguva yepasi uye yekubatanidza mune yakakwirira-kumhanya system zvakare chinhu chekutanga kutariswa mukugadzira system.Iyo nguva yekufambisa pamutsara wechiratidzo ine simba rakakura pane yese system yekumhanyisa, kunyanya yeyepamusoro-inomhanya ECL wedunhu.Kunyange zvazvo iyo yakasanganiswa yedunhu block pachayo ine kukurumidza kukuru, iyo system yekumhanyisa inogona kuderedzwa zvakanyanya nekuda kwekuwedzera kwekunonoka nguva yakaunzwa neyakajairwa yekubatanidza pane yepasi ndiro (inenge 2ns kunonoka pa30cm mutsara urefu).Kufanana nerejitari yekuchinja, kuwiriranisa counter iyi mhando yekubatanidza inoshanda chikamu inonyanya kuiswa pane imwecheteyo plug-in bhodhi, nekuti kufambisa nguva yekunonoka kwewachi chiratidzo kune akasiyana plug-in mabhodhi haina kuenzana, inogona kuita kuti rejista yekuchinja ibudise. iko kukanganisa kukuru, kana isingagone kuiswa pabhodhi, mukuwiriranisa ndiyo nzvimbo yakakosha, kubva kune yakajairika wachi sosi kuenda kune plug-in bhodhi rehurefu hwewachi hunofanirwa kuenzana.
4.Kufunga nezve wiring
Nekupedzwa kweOTNI uye nyeredzi fiber network dhizaini, pachave neakawanda 100MHz + mabhodhi ane mitsara yekumhanya yemasaini kuti agadziriswe mune ramangwana.
