Mukati me PCB dhizaini, nekuti iyo segmentation yendege, inogona kutungamira kune inongedzo ndege yeinoregedza chiratidzo, kune yakaderera frequency chiratidzo, inogona kunge isina chekuita, mune yakakwira frequency dhijitari masystem, yakakwira frequency chiratidzo kune yekurerekera ndege yekudzoka nzira, kureva kuyerera nzira , kana chirevo chepamusoro chisingaregi, chiratidzo pakuyambuka, izvi zvinounza matambudziko mazhinji, Zvakadai seEMI, crosstalk uye mamwe matambudziko. Mune ino kesi, iyo segmentation inoda kusimbiswa kuti ipe ipfupi yekudzokera shure nzira yechiratidzo. Nzira dzakajairika dzekugadzirisa dzinosanganisira kuwedzera kusona capacitance uye zambuko:

A. Kunonoka Capacitor˖

Kazhinji, 0402 kana 0603 ceramic capacitor inoiswa pamhiri pechiratidzo, uye iyo capacitance yeiyo capacitor iri 0.01uF kana 0.1uF. Kana iyo nzvimbo ichibvumidza, akati wandei 䘉 senge ma capacitors ˗ anogona kuwedzerwa. Zvichakadaro, edza kuona kuti tambo yemasaini iri mukati mekusona capacitance ye200mil. Iyo diki daro iri, zvirinani ˗ uye netiweki pamativi ese maviri eiyo capacitor inoenderana nemasaiti ereferensi ndege iyo inopfuura iyo chiratidzo. Ona netiweki dzakabatana pamagumo maviri eiyo capacitor muMufananidzo 1, uye iwo maviri akasiyana maneti akasimbiswa mumaviri mavara:

Maitiro ekuita yakagadzikana pcb bhodhi

B. Bhiriji pamusoro ˖

Yakajairika ndiyo “chiratidzo chepaketi kugadziriswa kwepasi” mune yechiratidzo chikamu muchikamu, inogona zvakare kunge iri packet yemamwe maratidziro emasaini, iyi “paketi yepasi” yakakora sezvinobvira, iyi nzira yekugadzirisa, inoreva kune inotevera nhamba

Maitiro ekuita yakagadzikana pcb bhodhi

Heino tsananguro yekuwedzera yechizvarwa chakajairika chemuchinjikwa chidimbu ˖

1. Chikamu chinotevera ˖ pane rimwe bhodhi, panogona kunge paine magetsi akawanda ekugadzirisa, uye huwandu hwesimba remagetsi pasi peiyo shoma nhamba; Mushure mekufungisisa kwakazara, taifanira kuvhiya mundege yemagetsi. Dzimwe nguva inogona kunge iri yakachena uye yakachena kuzorora – uye dzimwe nguva haigone kudzivirira kubatana kunonoka, uye inogona kupa chete chiratidzo chisina kukosha, asi chinofanira kugadziriswa. Kunzwa uku kwakafanana nekufamba kuenda kumba, pakarepo wakachera gomba, iri dambudziko, rakatenderedza, kure zvishoma, rinogona kudzingirirwa nembwa yemumwe munhu; zvakanaka,

Ingovaka bhiriji, kana kuti unogona kuenda kumba.

Saka, padivi pechirevo chemusango, kana iwe ukaita chikamu muPCB, saka

Tarisa mutsara, kana chimwe chinhu chingaitika.

2. Mamiriro ezvinhu ari pamusoro apa haasi nyore kuregeredza, uye kune imwe mamiriro angangoregeredzwa. Kana VIA yakanyanyisa kuomesa, zvichitungamira pakuchekwa kwendege, mushure mezvose, imwe nzira inotorwawo nenzvimbo, zvimwe zvinopa zvinotevera kutora, zvichikonzera ‘kugura, iyi mamiriro haina kutsanangurwa pano, yakakodzera sumo yakawanda. Mune ino kesi, iwe unofanirwa kuseta yakanaka mitemo mune yekutanga nhanho uye woiongorora nokungwarira mune inotevera nhanho.

Clock, reset, masaini anopfuura 100M uye mamwe makiyi emabhazi masaiti haakwanise kupatsanurwa. Iko kune imwechete ndege izere, kunyanya iyo ndege yeGND.

Clock chiratidzo, yekumhanyisa chiratidzo uye inonzwisisika chiratidzo inorambidza muchinjikwa zvikamu.

Masiyano ekusiyana anofanirwa kuve akaenzana pasi kudzivisa imwechete – mutsara – span segmentation. (Vertical muchinjikwa chidimbu kusvika pazvinogona)

Maitiro ekuita yakagadzikana pcb bhodhi

Iyo yakakwira frequency nzira yekudzoka yezviratidzo zvese iri pasi pezasi peiyo tambo yemutsara wepedyo rukoko. Signal kuvimbika uye nyaya dzenguva zvinogona kudzikiswa zvakanyanya nekuisa yakasimba dete pasi pechiratidzo chinopa yakananga chiuno chechiratidzo. 0.01uF wedunhu capacitor inofanirwa kushandiswa kana kupatsanurwa uye crossover pakati peiyo wiring uye iyo dura isingadziviriki. Kana chiuno capacitors chashandiswa, dzinofanirwa kuiswa padhuze nekukwanisika pamharadzano yetambo yechiratidzo uye chikamu chepakati.