Tiyenera kulabadira zotsatirazi kuti tikwaniritse zomwe tikufuna zokutira zamkuwa mu zokutira zamkuwa:

1. Ngati fayilo ya PCB ali ndi zifukwa zambiri, monga SGND, AGND, GND, etc., malinga ndi udindo wa bolodi PCB, “nthaka” waukulu ayenera kugwiritsidwa ntchito ngati amanena paokha kuthira mkuwa, ndi nthaka digito ndi analogi nthaka ayenera kulekana. . Palibe zambiri zonena za kutsanulira kwa mkuwa. Panthawi imodzimodziyo, musanayambe kutsanulira mkuwa, choyamba onjezerani mphamvu yogwirizana: 5.0V, 3.3V, ndi zina zotero, motere, mapangidwe angapo amitundu yosiyanasiyana omwe ali ndi maonekedwe osiyanasiyana amapangidwa.

2. Kulumikizana kwa mfundo imodzi ku zifukwa zosiyanasiyana, njirayo ndi kugwirizanitsa kudzera mu 0 ohm resistors kapena maginito mikanda kapena inductance;

3. Mkuwa kutsanulira pafupi ndi galasi oscillator. The crystal oscillator mu dera ndi gwero lapamwamba lotulutsa mpweya. Njirayi ndikutsanulira mkuwa mozungulira kristalo oscillator, ndiyeno kuyika chipolopolo chakunja cha kristalo oscillator padera.

Vuto la 4 Island (dead zone), ngati mukuganiza kuti ndilokulirapo, sizingawononge ndalama zambiri kutanthauzira malo ndikuwonjezera.

5. Kumayambiriro kwa waya, waya pansi ayenera kuchitidwa chimodzimodzi. Poyendetsa waya pansi, waya wapansi uyenera kuyenda bwino. Simungadalire kuwonjezera vias kuthetsa zikhomo pansi kwa kugwirizana pambuyo plating mkuwa. Izi ndizoyipa kwambiri.

6. Ndibwino kuti musakhale ndi ngodya zakuthwa pa bolodi, chifukwa kuchokera ku ma electromagnetics, izi zimapanga mlongoti wotumizira! Kuzinthu zina, ndi zazikulu kapena zazing’ono. Ndikupangira kugwiritsa ntchito m’mphepete mwa arc.

7. Osatsanulira mkuwa pamalo otseguka apakati pa bolodi la multilayer. Chifukwa ndizovuta kuti mupange chovala chamkuwa ichi kukhala “malo abwino”

8. Chitsulo mkati mwa chipangizocho, monga ma radiator achitsulo, zitsulo zowonjezera zitsulo, ndi zina zotero, ziyenera kukhala “zokhazikika bwino”.

9. Chitsulo chachitsulo chotenthetsera kutentha cha olamulira atatu-terminal chiyenera kukhala chokhazikika. Mzere wodzipatula pafupi ndi kristalo oscillator uyenera kukhala wokhazikika bwino.