S / PDIF - ntoni na?

Namhlanje, kukho kwiindawo zokubeka ezininzi kangaka, nezidibanisi ukuba ngamanye amaxesha ekunzima ukujamelana nayo omnye wabo. Umzekelo, kukho ngokufuthi iingxaki kunye kuthengwe devaysa esitsha senginginya nodibaniso nokuba kuyo naziphi na izixhobo ezongezelelweyo. Namhlanje siza kufunda konke malunga S / PDIF - oko kukuthi, ukuba kutheni na, kungani.

ukuba nombono

Okubangel 'umdla kukuba njengomgangatho zingasetyenziswa njenge eyongeziweyo lobeko lwe S / PDIF, kunye S / PDIF. Yena thaca zokucazulula wayo, nto leyo eyenza ukuba baqonde oko yasungulwa umgangatho. Sony / Philips Digital Interface Format igcina iseti yemida protocol nozalisekiso zekhompyutha. Kuye ubuchule ukudlulisa audio digital ifowuni yokuqala audio owesibini.

Ukuqwalasela i S / PDIF, siya kujongana nayo kunye nenxalenye ebonakalayo yenkqubo. impahla Physical kwenza kube lula ukuba yeyiphi indlela uphawu isasazeka njani na kwaye apho amajelo, kunye nenkqubo - esi Iprotocol eyoqobo esetyenzisiweyo.

incazelo

Ngaphambi kokuhlolisisa kwemida yesi interface, siyaqonda into ayenzayo. Ngokubanzi, le fomati ivumela iintlobo ezininzi iintambo nezidibanisi. Ngoko ke ihlabathi ifumaneka a S yedijithali / PDIF, ezinjalo nezibonwa. Kukho zonke ezi iinketho phantsi ezisebenza ngokubakho efanelekileyo kunye kagesi. Mhlawumbi endaweni ukusetyenziswa yafakwa enombala, kwaye vice versa. Into kuphela ukuba, ukongeza amaqhoshana kufuna unikezelo amandla angaphandle.

uyise

Ukuqulunqwa kwale interface yaqala professional standard AES / EBU ezikhoyo ngoko. Cipher kuqala yaziwa ngo-1986. Ke sasebenza kuso iinjineli Company kunye yaseYurophu Broadcasting Union. Inguqulelo alungiswe wasetyenziswa ngo-1992, yaye emva koko, wawunyamezela utshintsho ngo-2002 no-2009.

Njengesiqhelo, kukho umahluko interfaces. Oko kumiselwa ngokusebenzisa imilinganiselo-kakuhle.

umahluko

Ukuba awuyazi into malunga S / PDIF, kwaye oko kufuneka, mhlawumbi ongazange weva kunye AES / EBU. Umgangatho latest ceba ukuba ngokwemo DAT kunye CD, leyo enkhowudwa usebenzisa i kwezwi uyibona-khowudi. I-interface usebenzisa ikhowudi BMC. Oku kuthetha ukuba ukudluliselwa kolwazi kwenzeka nayo nayiphi sokuquqa isalathi zaphandwa ndzulu, kwaye idata recovery frequency udlula ekufundeni.

AES standard ubemelwe zokuguqulwa ezintathu. Bonke yasebenza 110 ohms isalathisi ukumelana nalo uqhagamshelwano twatsa, kuxhomekeke iinguqulelo ezisetyenziswa Cable amsindise isibini okanye udidi 5. Kule meko izihlanganisi standard ezahlukeneyo, XLR lokuqala okanye D-25, uR-45 kamva. Uphawu izinga 2-7 V.

Kwezwi wahlala ayitshintshanga wacanda encoding. data Subcode i ASCII ID-umbhalo. Umgama eliphezulu ekuqaleni kuphela 100 kamva - 400 m Resolution yafikelela amasuntswana-24..

Ngaphambi kokuba zonke safunda malunga S / PDIF, kwaye kutheni kufuneka ukuba, bekukho ukhetho eliphakathi AES3id. Usebenzisene 75 Ohm, uqhagamshelwano waba cable engalungelelananga yafakwa. format isinxibelelanisi kwakhona latshintshwa BNC, kwaye inqanaba uphawu liye lehla kwi V. 1 Umgama iphezulu lifikelele ingongoma 1000 m ukusombulula igunya uhlala efanayo -. 24 ziintanda.

Le nguqulelo wethutyana kakhulu babelawula incazelo izinto ezintsha. Umzekelo, imigangatho iliso basebenza 75 Ohm, uqhagamshelo engalungelelananga kuye. intambo yafakwa ke bobabini, nezibonwa, kuxhomekeke kudidi. Connector kwakhona zatshintsha ifomathi: RCA okanye TOSLINK. inqanaba uphawu iye ngaphantsi kwesiqingatha - 0.5 V. zatshintsha data subcode ukuthi ifakwe ngobugcisa isibambiso SCMS ikopi. Ubude obukhulu sehlile kwaye baba ngama-10 m, no-20 amasuntswana namandla ozikhethelayo wambonisa zonke amasuntswana 24 efanayo.

iintlobo

Njengokuba besesitshilo ngaphambili, kukho iintlobo ezintathu kulo mgangatho. Kukho S enombala / PDIF, digital kunye ezinjalo. TOSLINK kuqala got igama sibonga ayo Toshiba developer. Lo mgangatho fibre-optic. Ke kusoloko kufunyanwa izixhobo zasekhaya odiyo, amakhadi isandi computer, njalo njalo. D. A ethandwayo kutshanje kuba MiniTOSLINK ifomu factor 3,5 jack. Ukuba lungafumaneka ezinye iimodeli laptops, S ogama / PDIF sihambelana imveliso headset.

uhlobo yafakwa uba ukungawi 75 ohms, okuhlanganiswe interface RCA. Ukuba bengakugqali iintambo eqhelekileyo odiyo, okwabizwa ngokuba amahle, ngoko khangela umgangatho yafakwa. Ukuze isebenze ngokuchanekileyo, oko buphelisiwe macala omabini, yaye ukusebenza igalelo kunye neziphumo amanzi ka 75 ohms.

Digital yomsindo S / PDIF - uhlobo lwesithathu Level (TTL). Umgangatho isekelwe phezu inkqubo yokwakhiwa transistors disorder resistors. Transistor-transistor logic isekelwe izigaba ezibini, nangona njalo. Umphandle> 2.4 V, wesibini 0-0.4 V. Iziphumo yolu hlobo zifumaneka kwi amakhadi yesandi.

Kukho ingcaciso elula yokuhlelwa, ukunqanda uphazamiseko kwaye basebenze ngokufanelekileyo nesibakala ukuba - S / PDIF. Le interface yedijithali odiyo, njengoko baye bafumanisa, abe yedijithali okanye optical. Ukuba kuthunyelwe kumqhubi ikhaya elungileyo okanye iziko ephilileyo, kungcono ukuba ixhume nge olu hlobo isinxibelelanisi. Umgangatho isandi kubhetele kakhulu ngendlela eqhelekileyo.

Ukuphuculwa ngenxa yokuba isandi udlula yokuzaliswa oluvela rhoqo kunye nokuqokelela zonke pulses 'emdaka "imveliso ngokusebenzisa ifomathi analog digital, apho lithe lalila ophambene. Ukuba usebenzisa i umgangatho enombala, ungakhohlwa malunga isandi common drive.

isicelo

umgangatho indiva kusetyenziswa yokuqala abadlali-CD. Emva kokuba bafumanisa ukuba zingasetyenziswa njenge samaza isandi kunye isinxibelelanisi kwezinye isixhobo odiyo. Ngoko ke, lo esibonakalayo ukuvela kwi abadlali MiniDisc-namakhadi nesandi ukuba PC. Abanye abaqhubi elibukhali ungabona umgangatho audio emotweni. Ingakumbi ukuba kuye kwaba oyinto abo udiniwe kwe clutter Uqhubeko iqela elikhulu kweekhebhile. Ngoku inyanda iingcingo kube lula indawo enye ifayibha optic cable.

S / PDIF ingafunyanwa njengomlambo sixhobo yedijithali. Ngokwesiqhelo kule imo usebenza DVD-player igalelo theatre AV-ekhaya receiver. Ngenxa yoko, bonke ubugcisa isandi esitsha yafumaneka ekhaya. Abasebenzisi abaninzi bayakwazi aqhelane Dolby Digital kunye Digital Theatre System (DTS).

Kuzo zonke iinketho, lo isinxibelelanisi ixhaphakileyo waba RCA. Lowo uhamba nge S / PDIF "ibekwe" kwabathengi standard izixhobo odiyo. A bit lohlobo enombala isetyenziswa alufane. Ukusebenzisa inkqubo isandi kunye ive esebenzayo kuyimfuneko nje ukufumana isivuno S / PDIF.