Munhu wose anoziva kuti kuita a Pcb bhodhi ndeye kushandura dhizaini rakagadzirwa kuita chaiyo PCB redunhu bhodhi. Ndapota usarerutsa maitiro aya. Pane zvinhu zvakawanda zvinoshanda mumusimboti asi zvakaoma kuwana muinjiniya, kana Zvinogonekwa nevamwe, vamwe havagone. Naizvozvo, hazvina kuoma kuita PCB bhodhi, asi hazvisi nyore kuita PCB bhodhi zvakanaka.

Iwo maviri matambudziko makuru mumunda wemicroelectronics ndeyekugadzirisa kwepamusoro-frequency masaini uye asina simba masaini. Panyaya iyi, chiyero chekugadzirwa kwePCB chinonyanya kukosha. Iyo imwechete musimboti dhizaini, zvikamu zvakafanana, uye maPCB anogadzirwa nevanhu vakasiyana ane mhedzisiro dzakasiyana. , Zvino tingaita sei yakanaka PCB board? Zvichienderana neruzivo rwedu rwekare, ndinoda kutaura nezve maonero angu pazvinhu zvinotevera:

1. Zvinangwa zvekugadzira zvinofanira kunge zvakajeka

Kugamuchira dhizaini basa, tinofanira kutanga tajekesa magadzirirwo ayo zvinangwa, ingave yakajairika PCB bhodhi, yakakwirira-frequency PCB board, diki chiratidzo chekugadzirisa PCB bhodhi, kana PCB bhodhi ine zvese yakakwirira frequency uye diki chiratidzo chekugadzirisa. Kana iri yakajairika PCB bhodhi, Chero bedzi marongerwo uye wiring zvine musoro uye zvakatsvinda, uye chiyero chemuchina charingana, kana paine mitsetse yepakati uye mitsetse mirefu, mamwe matanho anofanirwa kushandiswa kuderedza mutoro, uye kureba. mutsara unofanirwa kusimbiswa kuti utyaire, uye chinotariswa ndechekudzivirira mitsetse mirefu.

Kana paine mitsetse yezviratidzo pamusoro pe40MHz pabhodhi, kutarisisa kwakakosha kunofanirwa kuitwa kune iyi mitsetse yemasaini, senge crosstalk pakati pemitsara. Kana iyo frequency yakakwira, pachave neakawanda kuomesesa zvirambidzo pakureba kwewaya. Zvinoenderana netiweki dzidziso yeakagoverwa parameters, kudyidzana pakati pehupamhi-kumhanya maseketi uye wiring yavo chinhu chakakosha uye haigone kufuratirwa mukugadzira system. Sezvo kukurumidza kwekufambisa kwegedhi kunowedzera, kupikisa pamitsara yechiratidzo kuchawedzera zvakakodzera, uye crosstalk pakati pemitsara yechiratidzo ichawedzera zvakaenzana. Kazhinji, mashandisirwo emagetsi uye kupisa kwekupisa kwemaseketi ekumhanya kwakakura zvakare, saka tiri kuita maPCB anomhanyisa. Kutarisirwa kwakakwana kunofanira kubhadharwa.

Kana paine millivolt kana kunyange microvolt-level isina simba masaini pabhodhi, iyi mitsetse yechiratidzo inoda kutariswa kwakanyanya. Zvikwangwani zvidiki hazvina kusimba uye zviri nyore kukanganiswa kubva kune mamwe masaini akasimba. Matanho ekudzivirira anowanzo kudikanwa, zvikasadaro ivo vanozoderedza zvakanyanya chiratidzo-ku-ruzha reshiyo. Nekuda kweizvozvo, chiratidzo chinobatsira chinonyudzwa neruzha uye hachigone kutorwa zvinobudirira.

Kutumwa kwebhodhi kunofanirwawo kutariswa mudanho rekugadzira. Nzvimbo yemuviri yenzvimbo yekuyedza, kuparadzaniswa kwenzvimbo yekuyedza uye zvimwe zvinhu hazvigone kuregererwa, nekuti zvimwe zviratidziro zvidiki uye ma-high-frequency masaini haagone kuwedzerwa zvakananga kune probe kuyerwa.

Pamusoro pezvo, zvimwe zvinhu zvine hukama zvinofanirwa kutariswa, sehuwandu hwematanho ebhodhi, chimiro chepakeji yezvikamu zvakashandiswa, uye simba remagetsi rebhodhi. Usati wagadzira bhodhi rePCB, unofanirwa kuve uine zano rakanaka rezvibodzwa zvekugadzira dhizaini.

2. Nzwisisa zvinodiwa pakurongeka uye nzira yemabasa ezvikamu zvakashandiswa

Isu tinoziva kuti zvimwe zvakakosha zvinodikanwa mune dhizaini uye wiring, senge analog siginecha amplifiers anoshandiswa neLOTI neAPH. Iyo analog signal amplifiers inoda simba rakagadzikana uye ripple ridiki. Chengetedza analogi diki chiratidzo chikamu kure kure kubva simba mudziyo sezvinobvira. PaOTI bhodhi, iyo diki chiratidzo inosimudzira chikamu zvakare yakashongedzerwa nenhovo yekudzivirira yakarasika yemagetsi kupindira. Iyo GLINK chip inoshandiswa pa NTOI board inoshandisa ECL tekinoroji, iyo inoshandisa simba rakawanda uye inogadzira kupisa. Kunyanya kufunga kunofanira kupiwa kune dambudziko rekupisa kupisa mukugadzirisa. Kana kupisa kwepanyama kuchishandiswa, GLINK chip inofanira kuiswa panzvimbo ine mhepo inotenderera. , Uye kupisa kunopisa hakugone kuve nekukanganisa kukuru kune mamwe machipisi. Kana bhodhi racho rakashongedzerwa nevatauri kana zvimwe zvigadziriso zvine simba guru, zvinogona kukonzera kusvibiswa kwakakomba kune magetsi. Pfungwa iyi inofanirawo kutorwa zvakadzama.

Chechitatu, kutariswa kwechikamu chechikamu

Chinhu chekutanga chinofanira kutariswa mukurongeka kwezvikamu ndechekuita kwemagetsi. Isai zvikamu zvine hukama hwepedyo pamwe chete sezvinobvira, kunyanya kune mamwe mitsara yepamusoro-soro, ita kuti ive pfupi sezvinobvira panguva yekugadzirisa, chiratidzo chemasimba uye zvikamu zviduku zvechiratidzo Kuti zviparadzaniswe. Pamusoro pekusangana nekuita kwedunhu, zvikamu zvinofanirwa kuiswa zvakatsvinda uye zvakanaka, uye zviri nyore kuyedza. Iyo mechanical size yebhodhi uye nzvimbo ye socket inofanirawo kunyatsotariswa.

Iyo ivhu uye yekutapurirana kunonoka nguva pamutsara wekubatanidza mune yakakwirira-kumhanya system zvakare zvinhu zvekutanga kutariswa muhurongwa hwekugadzira. Iyo nguva yekufambisa pamutsara wechiratidzo ine simba guru pane iyo yese system yekumhanyisa, kunyanya kune yakakwirira-kumhanya ECL maseketi. Kunyangwe iyo yakasanganiswa yedunhu block pachayo ichimhanya zvakanyanya, imhaka yekushandiswa kweakajairwa mitsara yekubatanidza pane yekumashure (kureba kwega yega 30cm mutsara ndeye Kunonoka huwandu hwe2ns) inowedzera nguva yekunonoka, inogona kuderedza zvakanyanya kukurumidza kwehurongwa. . Kufanana nemarejista ekuchinja, ma-synchronous counters uye mamwe ma-synchronous working components anonyatsoiswa pane imwechete plug-in board, nokuti nguva yekutumira inononoka yechiratidzo chewachi kune akasiyana plug-in mabhodhi haina kuenzana, izvo zvinogona kuita kuti rejista yekuchinja ibudise kukanganisa kukuru. Pane imwe bhodhi, uko kuwiriranisa ndiyo kiyi, kureba kwemitsara yewachi yakabatana kubva kune yakajairwa wachi kusvika kumabhodhi eplug-in inofanira kuenzana.