S / PDIF - kuyini?

Namuhla, kunamabandla Slots abaningi kangaka, nabakholelwa nezixhumi ukuthi ngezinye izikhathi kunzima ukubhekana omunye wabo. Ngokwesibonelo, kukhona ngokuvamile izinkinga kwe devaysa entsha bese uxhuma ke noma yimaphi amadivaysi ezengeziwe. Namuhla sizofunda zonke mayelana S / PDIF - okungukuthi, lokho futhi kungani.

Umcabango

Kuyathakazelisa ukuthi i standard international ingasetshenziswa njengendlela okufana S / PDIF, futhi S / PDIF. He is ukwethula emagama yayo, esenza sikwazi ukuba baqonde lokho okufundiswa ejwayelekile yasungulwa. Sony / Philips Digital Interface Ifomethi igcina iqoqo olandelwayo imingcele ihadiwe ukuqaliswa. It has ikhono ukudlulisa umsindo digital kusuka kudivayisi kuqala umsindo ku wesibili.

Uma ucabangela S / PDIF, sizosebenza futhi ingxenye ebonakalayo kohlelo. impahla Physical kwenza kube nokwenzeka ukuthi iyiphi indlela isignali idluliselwa futhi ngokusebenzisa yiziphi iziteshi, futhi uhlelo - okuyinto protocol isetshenziswa.

sebhithi

Ngaphambi kokuba sihlole nobubanzi balolu esibonakalayo, siyaqaphela ukuthi wenzani. Ngokuvamile, lokhu format ivumela izinhlobo eziningana izintambo futhi izixhumi. Ngalokho iphasi loke elingaphasi iyatholakala a S digital / PDIF, coaxial futhi optical. Kukhona zonke lezi ongakhetha ngaphansi adapters ezifanele futhi adaptha ukuphi. Mhlawumbe esikhundleni ukusetshenziswa coaxial optical, futhi okuphambene nalokho. Into nje, ngaphezu adapters adinga wangaphandle ugesi.

uyise

Ukuthuthukiswa kwale interface owaqala ngokuvukela ke ekhona professional AES / EBU ejwayelekile. Cipher wokuqala laziwa ngo-1986. Khona-ke sasebenza kuso onjiniyela Inkampani futhi European Broadcasting Union. Le nguqulo ukulungiswa lalisetshenziswa 1992, bese wathwala izinguquko 2002 no-2009.

Njengenjwayelo, kukhona umehluko interfaces. Kungaba izonqunywa amazinga ezimisiwe.

umehluko

Uma ungazi lutho mayelana S / PDIF, futhi yilokho okudingayo, cishe abakaze bezwe futhi AES / EBU. Izinga zakamuva yasungulwa for dat kanye CD ifomethi, okuyinto okubhalwe besebenzisa ukushintshashintsha kwezwi ngiyibona-ikhodi. Interface isebenzisa BMC ikhodi. Lokhu kusho ukuthi ukudluliswa kolwazi kwenzeka nanoma yimuphi imvamisa exponent izibonelo zalokho, futhi idatha imvamisa yokutakula sidlula emagama.

AES ejwayelekile yayimelelwe ukulungiswa ezintathu. Zonke wasebenza 110 ohms ukumelana Inkomba nge uxhumano lesinesitfombe-sibuko, kuncike ukuhlela kabusha esetshenziswa Ikhebula kwakuvikela pair noma isigaba 5. Kulokhu futhi ezahlukene ejwayelekile nezixhumi, XLR lokuqala noma D-25, RJ-45 kamuva. Izinga isignali ye 2-7 V

Ukushintshashintsha ayizange ithuthuke badabula wekhodi. idatha Subcode kuyinto ASCII ID-umbhalo. Ibanga esiphezulu ekuqaleni kwaba 100m kuphela kamuva - m 400 Ukulungiswa safinyelela 24 izingcezu..

Ngaphambi sonke ngezwa ngalokhu S / PDIF, futhi kungani udinga ukuba, ngeke ngisadlala Lesisemkhatsini AES3id. Uye wasebenza nge 75 Ohm, Ukuxhumeka bokumele ongenakulinganisela ikhebula coaxial. Isixhumi format futhi washintsha ukuze BNC, futhi izinga isignali usunciphe 1 V Ibanga esiphezulu ifinyelele iphuzu 1000 m ekuxazululeni amandla ayiguquki -. 24 izingcezu.

Le nguqulo interim kakhulu babelawula sokunqophisa izinto ezintsha. Ngokwesibonelo, amazinga elibukhali basebenza 75 Ohm, uxhumano ongenakulinganisela has. ikhebula Coaxial kokubili, futhi optical, kuye ngohlobo. Isixhumi futhi washintsha format: RCA noma TOSLINK. Esiginali ezingeni isibe esingaphansi kwesigamu - 0.5 V washintsha idatha subcode ukuthi ifakwe ukuphepha ubuchwepheshe kusukela ikhophi SCMS. Ubude obukhulu kwehle futhi baba 10 m kuphela, no-20 izingcezu ikhono ozikhethela yabonisa zonke okufanayo 24 izingcezu.

izinhlobo

Njengoba sishilo phambilini, kukhona izinhlobo ezintathu le ndinganiso. Kukhona S optical / PDIF, digital futhi coaxial. TOSLINK lokuqala lethiwa sibonga Toshiba unjiniyela. Le ndinganiso fiber-optic. Wayengase ngokuvamile atholakala amadivayisi yasekhaya alalelwayo, amakhadi ikhompyutha umsindo, nokunye. D. A ethandwa usanda kuba MiniTOSLINK Isici sefomu 3,5 Jack. Bona kungatholakala kwezinye amamodeli we-laptops, ogama S / PDIF kuqondaniswe nge okukhipha earphone we.

uhlobo Coaxial has a ukumelana 75 ohms, ehlangene esibonakalayo RCA. Uma zehlukile izintambo ezivamile alalelwayo, eyaziwa nangokuthi Tulips ke sibheke ejwayelekile coaxial. Ukuze isebenze kahle, ke inqanyulwa nhlangothi zombili, kanye nokusebenza input bese okukhipha impedance 75 ohms.

Digital audio-S / PDIF - uhlobo wesithathu Level (TTL). Izinga kusekelwe isikimu sokwakha transistors okuguquguqukayo futhi resistors. Transistor-Transistor logic esekelwe izigaba ezimbili, nakuba ayengafiki ngaso sonke isikhathi. Ikhaya> 2.4 V, wesibili 0-0.4 V Imiphumela yalolu hlobo ingatholakala ku amakhadi umsindo.

Kunencazelo okulula ngezigaba, ukuze kugwemeke ukudideka futhi ukubhekana kahle neqiniso lokuthi kuba - S / PDIF. Lokhu interface digital alalelwayo, njengoba sithola, kungaba yedijithali noma optical. Uma uthumele ezinhle uhlelo ekhaya umsindo noma isikhungo umsindo, kungcono ixhume nge lolu hlobo isixhumi. Izinga umsindo ingcono kakhulu ifomathi evamile.

Ngcono ngenxa yokuthi umsindo sidlula ukugcwaliswa ephezulu imvamisa futhi eqoqa konke "ezingcolile" pulses okuphumayo ngokusebenzisa format analog digital, okungadingi umsindo uhlanekezelwe. Uma usebenzisa i standard optical, ungakwazi bayakhohlwa umsindo idrayivu ezivamile.

isicelo

standard wangazinaka lokuqala asetshenziswe CD-abadlali. Ngemva sathola ukuthi ingasetshenziswa njengendlela Lidlulisela umsindo kanye Isixhumi kule enye idivayisi yomsindo. Ngakho, le interface ukuze avele Idiski encane-abadlali kanye namakhadi umsindo for PC. Abanye abashayeli oqaphelayo ungabona elimisiwe umsindo wemoto. Ikakhulukazi bekulokhu godsend kulabo bakhathele imfuhlumfuhlu of inqwaba amakhebuli. Manje isixha izintambo ungayithola enye kalula nomunye fibre optic ikhebula.

S / PDIF kungatholakala njengendlela digital ekusakazeni Lidlulisela. Ngokuvamile kule modi isebenza nge-DVD player okokufaka AV-ekhaya yaseshashalazini umamukeli. Ngenxa yalokho, bonke ubuchwepheshe obusha umsindo baba etholakalayo ekhaya. Abasebenzisi abaningi bayakwazi bajwayelane Dolby Digital futhi Digital Theatre System (DTS).

Kuzo zonke izinketho, isixhumi ezivamile baba RCA. Yena ibhangqwe S / PDIF "elise" e umthengi imishini umsindo ejwayelekile. Nasi uhlobo optical isetshenziswa kancane njalo. Ukusebenzisa uhlelo umsindo acoustic asebenzayo ezidingekayo ukuze uthole eminye okukhiphayo S / PDIF.