Mukukonzekera PCB kapangidwe, chifukwa gawo la ndege, lingapangitse kuti ndegeyo iwonetsere chizindikiro chosiya, chifukwa chotsika pafupipafupi, sichingakhale ndi chochita, pamakina apamwamba kwambiri a digito, chizindikiritso cha ma frequency apamwamba ku ndege yolozera njira yobwerera, yomwe ndi njira yoyenda. ) Monga EMI, crosstalk ndi mavuto ena. Poterepa, magawowa akuyenera kulumikizidwa kuti apereke njira yofupikira yobwerera mbendera. Njira zomwe anthu amagwiritsa ntchito pophatikiza kuphatikiza kusoka ndi mlatho:

Wosunga Capacitor˖

Nthawi zambiri, 0402 kapena 0603 ceramic capacitor imayikidwa pagawo lazizindikiro, ndipo mphamvu ya capacitor ndi 0.01uF kapena 0.1uF. Ngati danga lilola, ena angapo ngati ma capacitors ˗ amatha kuwonjezeredwa. Pakadali pano, yesani kuwonetsetsa kuti mzere wamawu uli mkati mwa mphamvu yosoka ya 200mil. Mtunda wocheperako, ndikwabwino ˗ ndipo ma netiweki kumapeto onse a capacitor amafanana ndi maukonde a ndege yolozera yomwe chizindikirocho chimadutsa. Onani ma netiweki olumikizidwa kumapeto onse a capacitor mu Chithunzi 1, ndi ma network awiri osiyana omwe ali ndi mitundu iwiri:

Momwe mungapangire bolodi lolimba la PCB

B. Mlatho ˖

Chofala ndi “chizindikiro paketi pansi processing” mu wosanjikiza chizindikiro kudutsa segmentation, amathanso kukhala paketi ya mizere ina maukonde mbendera, izi “paketi nthaka” wandiweyani ngati nkotheka, njira processing, amatanthauza chithunzi otsatirawa

Momwe mungapangire bolodi lolimba la PCB

Nayi malongosoledwe owonjezera am’badwo wamba wamagawo owoloka ˖

1. Gawo lotsatirali ˖ pa bolodi limodzi, pakhoza kukhala magetsi ochulukirapo, ndi kuchuluka kwa magetsi pansi pamlingo wochepa; Pambuyo pokambirana mozama, tinayenera kugwira ntchito pa ndege yamagetsi. Nthawi zina kumatha kukhala kupumula koyera komanso koyera ndipo nthawi zina sikungapewe kulumikizana kwakanthawi, ndipo kumatha kupereka chizindikiritso chochepa chabe, koma kuyenera kukonzedwa. Kumverera uku kuli ngati kuyenda kunyumba, mwadzidzidzi kukumba dzenje, ili ndi vuto, mozungulira, pang’ono pang’ono, atha kuthamangitsidwa ndi galu wa wina; Chabwino,

Ingomangani mlatho, kapena mutha kupita kwanu.

Chifukwa chake, pambali pachofanizira chakutchire, ngati mungagawane ndi PCB, ndiye

Chongani chizindikirocho, kapena china chake chitha kuchitika.

2. Zomwe zili pamwambazi sizovuta kuzinyalanyaza, ndipo pali vuto lina lomwe linganyalanyazidwe. Ngati VIA ili yothina kwambiri, zomwe zimapangitsa kuti ndegeyo idulidwe, pambuyo pake, enawo amapezekanso pamalopo, ena apatsa otsatirawa mwayi wokhala nawo, zomwe zimapangitsa ‘kudulidwa, izi sizikufotokozedwa pano, chiyambi ndi zambiri. Poterepa, muyenera kukhazikitsa malamulo abwino koyambirira ndikuwunika mosamala pambuyo pake.

Clock, reset, ma siginolo opitilira 100M ndipo ma siginolo ena abasi sangathe kugawanika. Pali ndege imodzi yokwanira, makamaka ndege ya GND.

Chizindikiro cha wotchi, chiwonetsero chothamanga kwambiri komanso chizindikiritso chanzeru sichikuletsa magawano;

Zizindikiro zosiyanitsa ziyenera kukhala pansi kuti zipewe kugawanika kwa mzere umodzi. (Magawo owoloka momwe angathere)

Momwe mungapangire bolodi lolimba la PCB

Njira yobwererera pafupipafupi yazizindikiro zonse ili pansipa pamzere wazizindikiro zapafupi. Kukhulupirika pazizindikiro komanso kuchepa kwa nthawi kumatha kuchepetsedwa kwambiri poyika chingwe cholimba pansi pa chizindikirocho chomwe chimapereka chiwongolero chachindunji cha chizindikirocho. Dongosolo capacitor la 0.01uF liyenera kugwiritsidwa ntchito pomwe kulekana ndi crossover pakati pa waya ndi wosanjikiza sikungapeweke. Ma loop capacitors akagwiritsidwa ntchito, amayenera kuyikidwa pafupi kwambiri ndi mphambano ya mzere wa zala ndi magawano osanjikiza.