Peb yuav tsum tau xyuam xim rau cov teeb meem hauv qab no txhawm rau ua tiav cov txiaj ntsig zoo ntawm tooj liab txheej hauv tooj liab txheej:

1. Yog cov PCB muaj ntau lub hauv paus, xws li SGND, AGND, GND, thiab lwm yam, raws li txoj haujlwm ntawm PCB lub rooj tsavxwm, lub ntsiab “hauv av” yuav tsum tau siv los ua ib qho kev siv rau nws tus kheej nchuav tooj liab, thiab cov av digital thiab analog av yuav tsum tau muab cais tawm. . Tsis muaj ntau hais txog tooj liab ncuav. Nyob rau tib lub sij hawm, ua ntej tooj liab ncuav, thawj thicken lub sib txuas fais fab kev twb kev txuas: 5.0V, 3.3V, thiab lwm yam, nyob rau hauv no txoj kev, ib tug xov tooj ntawm multi-deformation lug nrog txawv duab yog tsim.

2. Ib qho kev sib txuas ntawm ib qho chaw sib txawv, txoj kev yog txuas los ntawm 0 ohm resistors lossis cov hlaws sib nqus lossis inductance;

3. Copper ncuav nyob ze ntawm lub crystal oscillator. Crystal oscillator nyob rau hauv Circuit Court yog ib tug high-frequency emission qhov chaw. Tus txheej txheem yog ncuav tooj liab nyob ib ncig ntawm lub pob zeb siv lead ua oscillator, thiab tom qab ntawd muab cov pob zeb sab nrauv ntawm cov siv lead ua oscillator cais.

4Island (tuag cheeb tsam) teeb meem, yog tias koj xav tias nws loj heev, nws yuav tsis raug nqi ntau los txiav txim siab hauv av thiab ntxiv rau hauv.

5. Thaum pib ntawm kev xaim, cov xaim hauv av yuav tsum tau kho tib yam. Thaum routing av xaim, av xaim yuav tsum tau routed zoo. Koj tsis tuaj yeem tso siab rau kev ntxiv vias kom tshem tawm cov pins hauv av rau kev sib txuas tom qab tooj liab plating. Cov nyhuv no phem heev.

6. Nws yog qhov zoo tshaj kom tsis txhob muaj cov kaum ntse ntse ntawm lub rooj tsavxwm, vim tias los ntawm qhov kev xav ntawm electromagnetics, qhov no yog lub kav hlau txais xov xa xov! Rau lwm yam, nws tsuas yog loj lossis me xwb. Kuv pom zoo kom siv cov ntug ntawm lub arc.

7. Tsis txhob nchuav tooj liab nyob rau hauv qhov chaw qhib ntawm nruab nrab txheej ntawm lub rooj tsavxwm multilayer. Vim tias nws nyuaj rau koj ua qhov tooj liab clad “zoo hauv av”

8. Cov hlau hauv lub cuab yeej, xws li hlau radiators, hlau reinforcement strips, thiab lwm yam, yuav tsum yog “zoo hauv av”.

9. Lub tshav kub dissipation hlau thaiv ntawm peb lub davhlau ya nyob twg regulator yuav tsum tau zoo grounded. Lub hauv av cais sawb ze ntawm cov siv lead ua oscillator yuav tsum tau zoo grounded.