I roto i nga ahuatanga o 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, Pēnei i te EMI, te crosstalk me etahi atu raru. I tenei keehi, me tuitui te waahanga kia pai ake ai te ara whakamuri mo te tohu. Ko nga tikanga tukatuka noa ko te taapiri i te kaha tuitui me te piriti:

A. Kaiwhakaputa Stiching˖

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. Ko te iti o te tawhiti, ko te pai ˗ me nga hononga i nga pito e rua o te kaitahuri e hono ana ki nga whatunga o te rererangi tohutoro ka huri te tohu. Tirohia nga hononga e hono ana i nga pito e rua o te kaitahuri i te Whakaahua 1, me nga hononga e rua e rua kua whakaatuhia ki nga tae e rua:

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B. Piriti ki runga ˖

Ko te “tukatuka papa tohu whenua tukatuka” kei te papa tohu puta noa i te wehenga, koinei pea te peeke o etahi atu raina tohu whatunga, tenei “papa pute” kia rite ki te kaha, tenei tikanga tukatuka, tirohia te ahua e whai ake nei

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Anei tetahi korero taapiri mo te whakatupuranga noa o te waahanga whakawhiti ˖

1. Ko te waahanga e whai ake nei ˖ i runga i te papa kotahi, akene he maha nga waahanga mana hei tukatuka, me te maha o nga taputapu hiko kei raro i te nama whaaiti; Whai muri i te tirohanga matawhānui, me mahi maatau i runga i te rererangi hiko. I etahi wa akene he waahi maamaa me te maamaa ˗ ana i etahi waa kaore e taea te karo i te hononga roa, ana mena he tohu iti iho te tohu, engari me aata whakatika. Ko tenei ahua he rite ki te hikoi ki te kaainga, ka keri ohorere i te poka, he raru tenei, huri noa, he paku noa, ka whaia e te kuri a tetahi; Well,

Me hanga noa he piriti, ka hoki ranei ki te kaainga.

Na, haunga ke i te kupu mohoao, ki te mahi koe i tetahi waahanga i roto i te PCB, na

Tirohia te raina tohu, ka tupu ranei tetahi mea.

2. Ko te ahuatanga i runga ake nei ehara i te mea ngawari ki te warewarehia, kei kona ano tetahi ahuatanga kaore pea e warewarehia. Mena he kikino rawa te VIA, ka arahi ki te tapahi o te rererangi, kaati, ko tetahi atu ma te waahi ano hoki e noho, ka nui ake nga mea e whai ake nei hei noho, ka hua te ‘tapahi, kaore tenei ahuatanga e whakaahuatia i konei, nga mea e tika ana. whakataki he nui ake. I tenei wa, me whakarite e koe he ture pai i te timatanga o te waa, me ata tirotiro i nga waahanga o muri mai.

Karaka, tautuhi, tohu neke atu i te 100M me etahi tohu pahi matua kaore e taea te wehe. Kotahi te waahanga o te rererangi oti, ko te mea pai ko te wakarererangi GND.

Tohu Karaka, tohu tere tere me te tohu tairongo aukati i te wehenga whakawhiti;

Me taurite nga tohu rereke ki te whenua kia kore ai e wehea te raina kotahi. (Te waahanga whakawhiti poutū tae noa atu ki te taea)

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Ko te ara whakahoki nui auau o nga tohu katoa kei raro i te raina tohu o te papanga e piri ana. Ko te pono o te tohu me nga take o te waa ka tino whakaitihia ma te whakatakoto i tetahi paparanga maaro i raro o te tohu e whakarato ana i te koropiko tika mo te tohu. Me whakamahi te miihini huringa 0.01uF ka kore e taea te karo i te wehenga me te whakawhiti i waenga i nga waea waea me te papa. Ka whakamahia ana nga kaitohu porowhita, me whakanoho kia tata ki te whakawhitinga o te raina tohu me te wehenga paparanga.