VGA OUT PCB Designingingqwalasela

I-VGA (i-Video Graphics Array) oko kukuthi, uluhlu lweegraphics zevidiyo, ezinesisombululo esiphezulu, izinga lokubonisa ngokukhawuleza, imibala ecebileyo, njl. Ujongano lweVGA aluyiyo kuphela ujongano oluqhelekileyo lwezixhobo zokubonisa zeCRT, kodwa kunye nojongano oluqhelekileyo lwezixhobo zokubonisa ikristale yeLcD. , kunye noluhlu olubanzi lwezicelo.

VGA OUT PCB ingqwalasela yoyilo

1. I-layout iyonke, isihlalo seVGA sisondele kangangoko kunokwenzeka kwi-chip yokuguqula ibekwe, zama ukunciphisa ulungelelwaniso lwe-analog ye-VGA.

2. I-decoupling capacitors ye-conversion chip power supply kufuneka ibekwe ngokusondeleyo kunokwenzeka kwizikhonkwane zombane ze-chip yokuguqula.

3. I-VGA_R / G / B idinga ukudibanisa i-75ohm yokudonsa ukuhla, ukuchaneka kwe-1%;isixhasi kufuneka sibekwe kufutshane netshiphu.

4. VGA_R / G / B umgca wolungelelwaniso ububanzi kangangoko kunokwenzeka, kucetyiswa ukuba ngaphezu 12mil, kwaye ubude umahluko phakathi kwabo akayi kudlula 200mil.

5. Iimfuno zesignali ye-VGA_R / G / B kuyo yonke ipakethe eyahlukileyo yokulungiswa komhlaba, isithuba sokulungelelaniswa kwepakethi yomhlaba we-300mil okanye ngaphantsi kufuneka sibe nomhlaba phezu komngxuma.

6. Umqondiso we-VGA_R / G / B omelene nenqanaba kufuneka ube yindiza yomhlaba, kungekhona indiza yamandla.

7. Iimpawu ze-VGA_R / G / B zikude ne-LCD, i-DRAM kunye neminye imigca yesignali yesantya esiphezulu, enqatshelwe kwimigca yesignali yesantya esiphezulu esondelene nomgca wokulungelelanisa;inqatshelwe kwimigca yesignali yesantya esiphezulu kufuphi nomngxuma womaleko;ukulungelelaniswa akudluli kummandla we-inductive;kude nemiqondiso yeRF kunye nezixhobo;

8. I-VGA_HSYNC/VSYNC RC filter kufuneka ibekwe kufutshane nesihlalo seVGA, ulungelelwaniso kufuneka lungadluli kwi-6 Intshi.

9. Isihlalo se-VGA zonke iimpawu ityhubhu ye-TVS kufuneka ibekwe ngokusondeleyo kangangoko kunokwenzeka kwisitulo soqhagamshelo, itopology yomqondiso: isihlalo seVGA → TVS → ipini yetshiphu;I-ESD phenomenon, i-ESD yangoku kufuneka iqale idlule kwisixhobo sokuthomalalisa i-TVS;Ulungelelwaniso lwesixhobo seTVS alunaso isiphunzi esishiyekileyo (Stub);Izikhonkwane zomhlaba ze-TVS ziyacetyiswa ukuba zizame ukwandisa umhlaba phezu komngxuma, ubuncinane ukuqinisekisa ukuba ezimbini 0.4 * 0.2mm phezu komngxuma, ukomeleza isakhono sokukhupha i-electrostatic.Yomeleza umthamo wokukhupha i-electrostatic.

I-Zhejiang NeoDen Technology Co., LTD., Yasekwa ngo-2010, ngumvelisi oqeqeshiweyo okhethekileyo kwi-SMT pick and place machine, i-oven reflow, umatshini wokushicilela we-stencil, umgca wemveliso we-SMT kunye nezinye iiMveliso ze-SMT.Sineqela lethu le-R & D kunye nemizi-mveliso yethu, sithatha ithuba le-R&D yethu etyebileyo, imveliso eqeqeshwe kakuhle, yaphumelela igama elihle kubathengi behlabathi ngokubanzi.

Sikholelwa ukuba abantu abakhulu kunye namahlakani enza iNeoDen ibe yinkampani enkulu kwaye ukuzinikela kwethu kuTshintsho, iyantlukwano kunye noZinzo kuqinisekisa ukuba i-SMT automation iyafikeleleka kuye wonke umntu othanda ukuzonwabisa kuyo yonke indawo.