Interface : Yadda ake raba sanin TTL da LVDS

Siginar TTL daidaitaccen sigina ne wanda TFT-LCD zai iya gane shi, har ma da LVDS TMDS da aka yi amfani da shi daga baya an lulluɓe shi bisa tushen sa.Layin siginar TTL yana da jimlar 22 (ƙananan, ba a ƙididdigewa da ƙarfi) zuwa sigina mai launi na RGB, siginar daidaita filin HS VS guda biyu, bayanan ɗaya yana ba da siginar DE siginar agogo CLK, inda RGG launi mai tushe uku ya bambanta bisa ga zuwa adadin bits na allo, da layin bayanai daban-daban (6-bit, Kuma 8-bit point) 6-bit allo da 8-bit allo tri-launi sune R0-R5 (R7) G0-G5 (G7) B0- B5(B7) siginar tricolor siginar launi ce, rashin daidaituwa zai sa allon nunin launi na launi.
Sauran sigina na 4 (HS VS DE CLK) su ne siginar sarrafawa, kuma rashin haɗin kai zai sa wuraren nunin allo ba su haske kuma ba su nunawa da kyau.Saboda matakin siginar TTL yana da kusan 3V, yana da babban tasiri akan watsa nisa mai girma, kuma juriya ga tsangwama shima talauci ne.Don haka akwai allon dubawa na LVDS, muddin XGA sama da ƙimar ƙudurin allon yana amfani da yanayin LVDS.

Hakanan an raba LVDS zuwa tashoshi guda ɗaya, tashoshi biyu, 6 ragowa, 8 ragowa, ɓangarori, ƙa'ida da rabon TTL iri ɗaya ne.LVDS (siginar siginar ƙarancin matsa lamba) yana aiki ta amfani da keɓewar IC don shigar da harafin TTL cikin siginar LVDS, 6 ragowa azaman bambance-bambancen 4, 8 rago don bambancin 5, sunayen layin bayanai d0-D0-D1-D2-CK- CK-Ck-Idan allon 6-bit ne, babu D3 - D3 da saitin sigina, wanda aka sanya shi a allon kwamfutar mu.A daya gefen allon, akwai kuma na'ura mai sarrafa IC mai aiki iri ɗaya, yana juya siginar LVDS zuwa siginar TTL, kuma allon yana ƙare da siginar TTL, saboda matakin siginar LVDS yana kusan 1V, da kuma tsangwama a tsakanin. layukan da layukan na iya soke juna.Don haka ikon hana jamming yana da ƙarfi sosai.

Yana da manufa don amfani akan fuska tare da babban lambar lambar saboda babban ƙuduri.Saboda girman ƙudurin 1400X1050 (SXGA) 1600X1200 (UXGA) ƙudurin ƙuduri ya yi girma sosai, ƙimar lambar siginar kuma an inganta daidai, dogaro da duk watsawar LVDS ya mamaye, don haka suna amfani da hanyar sadarwa ta LVDS ta hanyoyi biyu zuwa rage ƙimar kowane LVDS.Tabbatar da kwanciyar hankali na sigina


Lokacin aikawa: Yuli-24-2019
WhatsApp Online Chat!