VGA (Video Graphics Array) ndiko kuti, mndandanda wazithunzi zamakanema, zokhala ndi kusamvana kwakukulu, kuwonetsetsa mwachangu, mitundu yolemera, ndi zina zambiri. VGA mawonekedwe si mawonekedwe anthawi zonse a zida zowonetsera CRT, komanso mawonekedwe okhazikika a zida zowonetsera zamadzimadzi za LcD. , ndi ntchito zosiyanasiyana.
VGA OUT PCB malingaliro opanga
1. Kamangidwe chonse, VGA mpando pafupi kwambiri ndi kutembenuka Chip anaika, yesetsani kufupikitsa VGA analogi chizindikiro mayikidwe.
2. Ma decoupling capacitors a magetsi osinthika a chip ayenera kuikidwa pafupi kwambiri ndi zikhomo zopangira mphamvu za chipangizo chosinthira.
3. VGA_R/G/B ayenera kulumikiza 75ohm kukokera pansi resistor, kulondola kwa 1%;resistor iyenera kuyikidwa pafupi ndi chip.
4. VGA_R / G / B mzere m'lifupi m'lifupi ngati wandiweyani, Ndi bwino kuti oposa 12mil, ndi kutalika kusiyana si upambana 200mil.
5. Zofunikira za chizindikiro cha VGA_R / G / B panthawi yonse yosiyana ya paketi pansi, nthawi yolumikizira paketi ya 300mil kapena kuchepera iyenera kukhala ndi nthaka pamwamba pa dzenje.
6. VGA_R / G / B chizindikiro moyandikana ndi wosanjikiza ayenera kukhala pansi ndege, osati ndege mphamvu.
7. Zizindikiro za VGA_R / G / B zili kutali ndi LCD, DRAM ndi mizere ina yothamanga kwambiri, yoletsedwa m'mizere yothamanga kwambiri yomwe ili pafupi ndi kusanja;zoletsedwa m'mizere yothamanga kwambiri pafupi ndi dzenje la wosanjikiza;kuyanjanitsa sikudutsa m'dera lothandizira;kutali ndi ma siginecha a RF ndi zida;
8. VGA_HSYNC/VSYNC RC fyuluta iyenera kuyikidwa pafupi ndi mpando wa VGA, kuyanjanitsa sikuyenera kupitirira 6 Inchi.
9. VGA mpando zizindikiro zonse TVS chubu ayenera kuikidwa pafupi kwambiri ndi mpando kugwirizana, chizindikiro topology: VGA mpando → TVS → Chip pini;Chodabwitsa cha ESD, ESD yamakono iyenera kudutsa pa chipangizo cha TVS;Kuyanjanitsa kwa chipangizo cha TVS mulibe chitsa chotsalira (Stub);TVS pansi zikhomo tikulimbikitsidwa kuyesa kuonjezera pansi pa dzenje, osachepera kuonetsetsa kuti awiri 0,4 * 0.2mm pa dzenje, kulimbitsa electrostatic kumaliseche mphamvu.Limbitsani mphamvu ya electrostatic discharge.
Zhejiang NeoDen Technology Co., LTD., yomwe idakhazikitsidwa mu 2010, ndi katswiri wopanga makina opangira ma SMT ndi malo, uvuni wa reflow, makina osindikizira a stencil, chingwe chopangira SMT ndi Zida zina za SMT.Tili ndi gulu lathu la R & D ndi fakitale yathu, kugwiritsa ntchito mwayi wathu olemera odziwa R&D, kupanga ophunzitsidwa bwino, adapambana mbiri yabwino kuchokera kwamakasitomala padziko lonse lapansi.
Timakhulupirira kuti anthu abwino ndi othandizana nawo amapangitsa NeoDen kukhala kampani yabwino komanso kuti kudzipereka kwathu ku Innovation, Diversity and Sustainability kumawonetsetsa kuti makina a SMT azitha kupezeka kwa aliyense wokonda zosangalatsa kulikonse.
Nthawi yotumiza: Sep-05-2023