Mapangidwe osinthika makamaka amatsatira malamulo awiri:

1. Wosanjikiza aliyense wowoneka bwino ayenera kukhala ndi wosanjikiza (mphamvu kapena malo osanjikiza);
2.

Nkhani zotsatirazi zimachokera ku bolodi yochokera ku bolodi awiri kupita ku bolodi isanu ndi itatu kuti lifotokoze chitsanzo:

1.

Ma taxi awiri-osanjikiza awiri, chifukwa cha zigawo zochepa, palibenso vuto lodziwika bwino. Ma radiation a EMI EMI amatengedwa makamaka kuchokera kuzolowera ndi mawonekedwe;

Kugwirizana kwa ma elekitiromineti a mabodi osanjikiza ndi matabwa owiritsa kwambiri ayamba kukhala otchuka kwambiri. Chifukwa chachikulu chochitira izi ndichakuti malo achizindikiro kwambiri ndi ochulukirapo, omwe sikuti amangotulutsa radiation yamphamvu yamagetsi, komanso imapangitsa kuti madera azilumikizana ndi zosokoneza zakunja. Kuwongolera ma elekitromaagnetic kugwirizana, njira yosavuta ndiyo kuchepetsa malowa a chizindikiro chachikulu.

Chizindikiro Chofunikira: Kuchokera pakuwona kwa mawonekedwe a elekitomic, signals makamaka amatanthauza zizindikiro zomwe zimapanga ma radiation amphamvu ndi zizindikilo zakunja. Zizindikiro zomwe zimatha kupanga ma radiation amphamvu nthawi zambiri zimakhala zosafunikira, monga zizindikiro zotsika kwambiri mawotchi kapena ma adilesi. Zizindikiro zomwe zimakhudzidwa ndi kulowererapo ndi ma andalog zizindikiro ndi milingo yotsika.

Ma boloni osakwatiwa ndi awiri omwe amagwiritsidwa ntchito kawirikawiri nthawi zambiri amagwiritsidwa ntchito pamapangidwe otsika a Analog otsika pansi 10khz:

1) Mphamvu zomwe zimapangitsa kuti womwe ukhale womwewo umathamangitsidwa kwambiri, ndipo kutalika kwa mizerewo sikuchepetsedwa;

2) Mukamayendetsa mphamvu ndi mawaya pansi, ayenera kuyanjana wina ndi mnzake; Ikani waya wapansi pafupi ndi waya wofunikira, ndipo waya wapansi uwu uyenera kukhala pafupi ndi waya wa siginecha. Mwanjira imeneyi, malo ocheperako amapangidwa ndipo chidwi cha ma radiation osiyanasiyana pakusokoneza kwa kunja kumachepetsedwa. Pamene waya wapansi umawonjezeredwa pafupi ndi waya wa siginecha, kuzungulira kwa malo ocheperako kumapangidwa, ndipo chizindikiro cham'malo chimakhalapo m'malo mwa mawaya ena.

3) Ngati ndi bolodi yosanjikiza madera awiri, mutha kuyikira waya wapansi pamzere wina wa chizindikiro mbali inayo, pomwepo pansi pa chingwe chamadera, ndipo mzere woyamba uyenera kukhala wotheka. Malo omwe amapezeka mwanjira imeneyi ndi wofanana ndi kukula kwa kukula kwa madera ochulukitsidwa ndi kutalika kwa mzere wa chizindikiro.

Awiri ndi anayi-tsindse amayamba

1. Sig-Gnd (PWR) -pwr (GND) -Sig;
2. Gnd-sig (pwr) -sig (pwr) -GND;

Kwa mapangidwe awiri omwe ali pamwambawa, vuto lomwe lingakhale lazachikhalidwe cha 1.6mm (62mil) bolodi. Kusanjikizako kudzakhala kwakukulu kwambiri, komwe sikosavuta kuwongolera zoletsa, zokhudzana ndi kugwirizanitsa ndi kutchinga; Makamaka, kutalika kwakukulu pakati pa ndege zamphamvu kumachepetsa mphamvu ya board ndipo sikugwirizana ndi kusefa phokoso.

Kwa chiwembu choyamba, nthawi zambiri limagwiritsidwa ntchito pamkhalidwe pomwe pali tchipisi tambiri pa bolodi. Matendawa amatha kukhala ndi magwiridwe abwino a SI, siabwino kwambiri kwa EMI, makamaka kudzera mu lumo ndi zina zofunika kuzilamulira. Chachikulu chisamaliro: nthaka yosanjikiza imayikidwa pa cholumikizira cholumikiza cha chizindikiro cha siginecha ndi chizindikiro chowiringa, chomwe chimapindulitsa kuyamwa ndikusokoneza ma radiation; Onjezani dera la bolodi kuti muwonetse ulamuliro wa 20h.

Ponena za yankho lachiwiri, nthawi zambiri limagwiritsidwa ntchito ngati kachulukidwe kakang'ono pa bolodi ndi kotsika chokwanira ndipo pali malo okwanira kuzungulira chip (Ikani mphamvu yofunika ya mkuwa). Mu chiwembuchi, kusanjikiza kunja kwa PCB ndi malo osanjikiza, ndipo zigawo zikuluzikulu ziwiri ndi zigawo zikuluzikulu / zamagetsi. Mphamvu yomwe ili pa signal wosanjikizayo imayendetsedwa ndi mzere waukulu, zomwe zimatha kupangitsa kuti njirayo igwetsere mphamvu yotsika kwambiri, ndipo kulowerera kwa njira ya micropt kulinso kochepa, ndipo ma radiation a dradial amathanso kutetezedwa ndi wosanjikiza wakunja. Kuchokera pakuwona kwa EMI kuwongolera, iyi ndiye njira yabwino kwambiri ya 4-tsabola.

Chachikulu chisamaliro: mtunda pakati pa zigawo ziwiri za chizindikiro ndi mphamvu zosakanikirana ziyenera kukulitsidwa, ndipo njira yolowera iyenera kukhala yosiyana kuti ipewe ma crostalsk; Malo a board ayenera kulamuliridwa moyenera kuti awonetse ulamuliro wa 20h; Ngati mukufuna kuthana ndi vuto la kuwonda, yankho lembali liyenera kusamala kwambiri kuti muone mawaya omwe amakonzedwa pansi pa chilumba cha mkuwa kuti chikhale ndi mphamvu. Kuphatikiza apo, mkuwa pa magetsi kapena nthaka ayenera kuphatikizidwa momwe mungathere kuonetsetsa kuti dc ndi pang'ono kulumikizana pafupipafupi.

Atatu, asanu ndi limodzi-osanjidwa

Kwa mapangidwe okhala ndi kachulukidwe kakang'ono kwambiri komanso kaduka kakang'ono, kapangidwe ka 6 koloko ziyenera kuganiziridwa, ndipo njira yokhazikika ikulimbikitsidwa:

1. Sig-Gnd-sig-pwr-gand-sig;

Kwa chiwembu chotere, mtundu uwu womwe unakondwera nawo ungakhale ndi umphumphu, chizindikirocho chimayandikana ndi dothi, mphamvu ya nthaka ndi yolumikizidwa imatha kuyamwa mitundu yamagetsi. Ndipo pamene magetsi amphamvu ndi nthaka yosanjikiza, imatha kupereka njira yabwinoko ya osanjikiza aliyense.

2. Gnd-siG-GMN-PWR-sig -gnd;

Kwa chiwembu chotere, chiwembu choterechi ndi choyenera kwa zomwe zimapangitsa kuti kuchuluka kwa chipango sikuli bwino kwambiri, ndipo ndege yamtunduwu imakhala ndi zabwino zonse zakumatambo ndi pansi. Tiyenera kudziwa kuti mphamvu zamphamvu ziyenera kukhala pafupi ndi wosanjikiza zomwe si gawo lalikulu la gawo, chifukwa ndege yapansi idzakhala yokwanira. Chifukwa chake, magwiridwe a EMI ndiwabwino kuposa yankho loyamba.

Chidule: Kwa thabwa lamasamba asanu ndi limodzi, mtunda pakati pa mafuta amphamvu ndipo nthaka iyenera kuchepetsedwa kuti ipeze mphamvu yabwino ndi kulumikizana. Komabe, ngakhale makulidwe a bolodi ndi 62mil ndipo nthawi yochepa kwambiri imachepetsedwa, sikophweka kuwongolera kutalikirana pakati pa magetsi ndi nthaka yosanjikiza kuti ikhale yaying'ono. Kuyerekezera chiwembu choyamba ndi chiwembu chachiwiri, mtengo wa chiwembu chachiwiri chidzakula kwambiri. Chifukwa chake, nthawi zambiri timasankha njira yoyamba ikamayala. Mukamapanga, tsatirani ulamuliro wa 20H ndi kapangidwe kake kalozera.

Zinayi ndi zisanu ndi zitatu-zisanu zimayamba

1. Uwu si njira yabwino yokhomera chifukwa cha ma elekitikiti osavomerezeka a electromagnetic ndi ponseponse. Kapangidwe kake ndi izi:
1.Sign 1 gawo, micRostrip younda
2. Signal 2 Microstpip ya MicRing Wosanjikiza, bwino
3.bwalo
4..
5.Signal 4 Stripline Rout
6.Power
7..
8.Sign 6 microstription

2. Ndi zosiyana ndi njira yachitatu yosungira. Chifukwa chowonjezera cholembera, ili ndi magwiridwe abwino a EMI, ndipo kuloza kwa mawonekedwe amtundu uliwonse kumatha kulamulidwa bwino
1.Sign 1 gawo, micRostrip yoyala, wosanjikiza wabwino
2.
3..
4..
6.Cignol 3 Stripline Roung Osanjikiza, Zabwino Kwambiri
7. Mphamvu yamagetsi, yokhala ndi mphamvu yayikulu
8.Sigrip 4 micROSTRIP Wosanjikiza, wosanjikiza wabwino

3. Njira yabwino kwambiri yokhazikika, chifukwa chogwiritsa ntchito ndege zamagawo angapo, zimakhala ndi kuyanjana kwabwino kwambiri kwa geomaginetic.
1.Sign 1 gawo, micRostrip yoyala, wosanjikiza wabwino
2.
3..
4.Power orger, kupanga ma elekitormative electromaagnetic ndi nthaka pansi pansi pa 5.
6.Cignol 3 Stripline Roung Osanjikiza, Zabwino Kwambiri
7..
8.Sigrip 4 micROSTRIP Wosanjikiza, wosanjikiza wabwino

Momwe Mungasankhire Matabwa angati omwe amagwiritsidwa ntchito popanga ndi momwe mungawapangire zimatengera zinthu zambiri monga kuchuluka kwa ziwerengero za zizindikiro za maukonde, kachulukidwe kakang'ono, kaphiri kake, kabati, kabatizi ndi zina zotero. Tiyenera kuganizira zinthuzi m'njira yokwanira. Pazizindikiro zodziwika bwino, kuchuluka kwa chipaso cha chipangizocho, kuchuluka kwa chipaso cha chikhomo ndi kuchuluka kwa zikwangwani, kapangidwe kake kaamalo kumayenera kutengera momwe angathere. Kuti mupange bwino EMI