S / PDIF - ndichiyani?

Masiku ano, pali mipata ambiri, ndipo zolumikizira kuti nthawi zina ovuta ndi mmodzi wa iwo. Mwachitsanzo, pali zambiri mavuto ndi kugula ndi devaysa latsopano ndi kulumikiza izo zipangizo zoonjezera. Lero tiona zonse za S / PDIF - kuti ndi chifukwa chiyani ndipo n'chifukwa chiyani.

maganizo

N'zochititsa chidwi kuti lamulo mayiko angagwiritsidwe ntchito ngati zosinthika wa S / PDIF, ndipo S / PDIF. Iye alipo decoding, lomwe limatithandiza kumvetsa zimene muyezo anayamba kupanga. Sony / Philips Intaneti Chiyankhulo Mtundu amasunga ya magawo protocol kwa kukhazikitsa hardware. Amatha kusamutsa digito zomvetsera pa chipangizo choyamba zomvetsera kwa wachiwiri.

Poganizira S / PDIF, ife kuthana nazo ndi gawo thupi la kachitidwe. katundu thupi limachititsa kudziwa njira chizindikiro imafalikira ndi mwa zomwe njira, ndi dongosolo la - ndi protocol ntchito.

mfundo

Tisanaone kuchuluka kwa mawonekedwe, tikuona kuti zimene iye anali kuchita. Ambiri, mtundu uwu limalola mitundu yambiri ya zingwe ndi zolumikizira. Choncho dziko lilipo ndi digito S / PDIF, coaxial ndi kuwala. Pali mungachite izi zonse pansi pa adaputala azamagetsi zoyenera ndi adaputala. Mwina m'malo ntchito coaxial kuwala, ndi mosemphanitsa. Chinthu chokha chimene, kuwonjezera adaputala azamagetsi zimafuna kunja kwa thupi mphamvu okwanira.

bambo

Kukula kwa mawonekedwe anayamba ndi ndiye alipo akatswiri AES / EBU muyezo. Cipher woyamba zinadziwika mu 1986. Ndiye ife ntchito pa izo akatswiri Company ndi European Union kuulutsa. Baibulo kudzudzulidwa anagwiritsidwa ntchito mu 1992, ndipo kenako anapirira kusintha mu 2002 ndi 2009.

Monga mwachizolowezi, pali kusiyana mu polumikizira lapansi. Iwo akhoza anatsimikiza ntchito mfundo zokhazikika.

kusiyana

Ngati inu simukudziwa kanthu za S / PDIF, ndipo ndicho chimene inu mukusowa, inu mwina sanamvepo za ndi AES / EBU. Muyezo atsopano anatulukira kuti DAT ndi CD akamagwiritsa, amene ndiyotengera ntchito kugunda-kachidindo kusinthasintha mawu. The mawonekedwe amagwiritsa BMC code. Izi zikutanthauza kuti kulanda zambiri amapezeka ndi aliyense pafupipafupi amalimbikitsa zitsanzo zosankhidwazi ndi deta pafupipafupi kuchira umadutsa decoding lapansi.

muyezo AES anayimiridwa mwa zosintha atatu. Onse ntchito ndi 110 ohms kukana index ndi kulumikiza ofananira, malingana ndi zosintha ntchito Chingwe isagwe awiri kapena gulu 5. Pankhaniyi komanso osiyana zolumikizira muyezo XLR woyamba kapena D-25, RJ 45 Patapita. Mlingo chizindikiro cha 2-7 V.

Kusinthasintha sichinasinthe ndipo anadutsa kabisidwe lapansi. Subcode deta ndi ASCII ID-lemba. Mtunda pazipita poyamba anali 100m kenaka - mamita 400 Maonekedwe anafika 24 Tinthu..

Tisanafotokoze onse anaphunzira za S / PDIF, ndipo ndi chifukwa chake muyenera, panali njira wapakatikati AES3id. Iye wakhala akuweta 75 ohm, kugwirizana nazo akamakonda coaxial chingwe. Cholumikizira mtundu kachiwiri unasintha BNC, ndi mlingo chizindikiro wakhala amagwa 1 V. Mtunda pazipita wafika mfundo 1000 mamita kuthetsa mphamvu akanali yemweyo -. 24 Tinthu.

Izi Baibulo wogwirizira makamaka malinga ndi mfundo za zinthu zatsopano. Mwachitsanzo, mfundo kuunikira ntchito ndi 75 ohm, kugwirizana akamakonda ali. Coaxial chingwe ndi onse, ndi kuwala, malingana ndi mtundu. Cholumikizira kachiwiri anasintha mtundu: RCA kapena TOSLINK. mlingo Signal wakhala zosakwana hafu - 0.5 V. anasintha subcode deta imene zida ndi luso chikole SCMS buku. Zolemba malire kutalika utachepa nakhala 10 okha m, ndi 20 Tinthu luso optional anasonyeza chimodzimodzi 24 Tinthu onse.

mitundu

Monga tidanena kale, pali mitundu itatu ya lamulo limeneli. Pali S kuwala / PDIF, digito ndi coaxial. TOSLINK loyamba nalo dzina lake kuyamika Toshiba mapulogalamu. Izi CHIKWANGWANI-chamawonedwe muyezo. Iye akanakhoza zambiri amapezeka mu zipangizo zoweta wailesi, makadi kompyuta phokoso, ndi zina zotero. D. A wotchuka posachedwapa kukhala MiniTOSLINK mawonekedwe chinthu 3,5 Jack. Angapezeke pa ena zitsanzo za Malaputopu, amene S / PDIF limagwirizana ndi linanena bungwe chomverera m'makutu.

Coaxial mtundu ali ndi kukana 75 ohms, chikugwirizana ndi mawonekedwe RCA. Ngati sizikugwirizana ochiritsira zingwe wailesi, amatchedwanso tulips, ndiye yang'anani pa muyezo coaxial. Ntchito molondola, ndi kutsazikana mbali zonse, ndi ntchito ya athandizira ndi linanena bungwe impedance 75 ohms.

Intaneti zomvetsera S / PDIF - mtundu wachitatu wa mlingo (TTL). muyezo zachokera chiwembu cha yomanga transistors ndi ochititsa kuti ndi resistors. Transistor-transistor mfundo zochokera magawo awiri, ngakhale kuti nthawi zonse. Home> 2.4 V, wachiwiri 0-0.4 V. The zotuluka wa mtundu uwu angapezeke pa makadi phokoso.

Pali yosavuta kulongosola gulu, kuti asasokonezeke ndi bwino kuthana ndi chakuti ndi - S / PDIF. Izi digito zomvetsera mawonekedwe, monga ife tapeza, angakhale digito kapena kuwala. Ngati inu anaika wabwino dongosolo kunyumba zomvetsera kapena pakati kulira, ndi bwino kulumikiza izo kudzera mtundu cholumikizira. Phokoso khalidwe n'kwabwino kuposa mtundu muyezo.

Kupititsa patsogolo maphunziro chifukwa chakuti akudutsa phokoso mwa mkulu-pafupipafupi kudzazidwa ndi kusonkhanitsa onse "zonyansa" nyemba linanena bungwe mwa mtundu analogi ndi digito, amene sizikumveka molakwika. Ngati mugwiritsa ntchito muyezo kuwala, inu angaiwale za Phokoso la galimoto wamba.

ntchito

Analekerera muyezo ntchito koyamba mu CD-osewera. Tikapeza kuti angagwiritsidwe ntchito monga chopatsilira abwino ndi cholumikizira mu chipangizo ena audio. Choncho, mawonekedwe izi kuonekera mu MiniDisc-osewera ndi makadi zomveka PC. Ena madalaivala chidwi kuwona muyezo mu galimoto audio. Makamaka wakhala godsend amene tatopa ndi zinthu zotere za ambiri zingwe. Tsopano mtolo wa mawaya mosavuta m'malo ndi CHIKWANGWANI wina chamawonedwe chingwe.

S / PDIF angapezeke ngati digito mtsinje chopatsilira. Zidapangidwa ku mode zimathandiza ndi DVD-player athandizira AV kunyumba zisudzo wolandila. Chifukwa cha zimenezi, onse latsopano phokoso luso anakhala likupezeka mu kunyumba. Ambiri owerenga amatha timudziwe bwino Dolby Intaneti ndi Intaneti Theatre System (DTS).

Pa njira zonse, cholumikizira ambiri anakhala RCA. Iye wophatikizidwa ndi S / PDIF "inali" mu ogula zida zomvetsera muyezo. A pang'ono choyimira cha kuwala ntchito kamodzikamodzi. Kugwiritsa ntchito zokuzira ndi lamayimbidwe lithe basi kuti akapeze zokolola za S / PDIF.