Mukati me PCB design, because the plane segmentation, may lead to a reference plane of discontinuous signal, for low frequency signal, may have nothing to do, in the high frequency digital systems, high frequency signal to the reference plane for return path, namely the flow path, if the reference ᒣ surface discontinuity, signal across the break up, this will bring many problems, 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˖

Usually, a 0402 or 0603 ceramic capacitor is placed across the signal division, and the capacitance of the capacitor is 0.01uF or 0.1uF. If the space allows, several more like capacitors ˗ can be added. Meanwhile, try to ensure that the signal line is within the sewing capacitance of 200mil. 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.