Kufuneka sinikele ingqalelo kule miba ilandelayo ukuze sifezekise isiphumo esinqwenelekayo sokugquma ubhedu kwingubo yobhedu:

1. Ukuba ifayile ye- PCB unezizathu ezininzi, ezifana ne-SGND, AGND, GND, njl., ngokwendawo yebhodi ye-PCB, “umhlaba” oyintloko kufuneka usetyenziswe njengesalathiso sokugalela ubhedu ngokuzimeleyo, kwaye umhlaba wedijithali kunye nomhlaba we-analog kufuneka uhlukaniswe. . Akukho nto ingako yokuthetha malunga nokugalelwa kobhedu. Kwangaxeshanye, ngaphambi kokuthululelwa kobhedu, qale ujiye uqhagamshelo lwamandla oluhambelanayo: 5.0V, 3.3V, njl., ngale ndlela, inani lezinto ezidityanisiweyo ezinemilo eyahlukeneyo zenziwe.

2. Uxhulumaniso lwendawo enye kwimihlaba eyahlukeneyo, indlela yokudibanisa nge-0 ohm resistors okanye ubuhlalu bamagnetic okanye inductance;

3. Ubhedu uthele kufuphi ne-crystal oscillator. I-crystal oscillator kwisekethe ngumthombo we-high-frequency emission source. Indlela yokuthulula ubhedu malunga ne-crystal oscillator, kwaye emva koko igobolondo langaphandle le-crystal oscillator ngokwahlukileyo.

I-4Island (indawo efileyo) ingxaki, ukuba ucinga ukuba inkulu kakhulu, ayizukubiza malini ukuchaza umhlaba kunye nokuwudibanisa.

5. Ekuqaleni kocingo, ucingo lomhlaba kufuneka luphathwe ngokufanayo. Xa uhambisa ucingo lomhlaba, ucingo lomhlaba kufuneka luhanjiswe kakuhle. Awunakuthembela ekongezeni i-vias ukuphelisa izikhonkwane zomhlaba zoqhagamshelo emva kokufakwa kobhedu. Esi siphumo sibi kakhulu.

6. Kungcono ukuba ungabi neekona ezibukhali ebhodini, kuba kwimbono ye-electromagnetics, oku kubandakanya i-antenna yokudlulisa! Kwezinye izinto, inkulu okanye incinci kuphela. Ndincoma ukusebenzisa umda we-arc.

7. Musa ukugalela ubhedu kwindawo evulekileyo yomgangatho ophakathi webhodi ye-multilayer. Kuba kunzima kuwe ukwenza le nto yobhedu “isiseko esihle”

8. Isinyithi esingaphakathi kweso sixhobo, njengama-radiators ensimbi, imichilo yokuqinisa isinyithi, njl., Kufuneka ibe “isiseko esihle”.

9. Ibhloko yensimbi yokutshatyalaliswa kobushushu yomlawuli we-terminal emithathu kufuneka ibekwe kakuhle. Umtya wokuzihlukanisa womhlaba kufuphi ne-crystal oscillator kufuneka ubekwe kakuhle.