Universal Serial Bus (USB) ingangove imwe yeanonyanya kuchinjika nzvimbo munyika. Yakatangwa neIntel neMicrosoft uye inoita seinopisa plug uye tamba sezvinobvira. Kubva pakaunzwa USB interface muna 1994, mushure memakore makumi maviri nematanhatu ebudiriro, kuburikidza ne USB 1.0/1.1, USB2.0, USB 3.x, yakazogadziridzwa kusvika ikozvino USB4; Mwero wekutapurirana wakawedzerawo kubva pa1.5Mbps kusvika pazvinozvino 40Gbps. Parizvino, kwete chete nharembozha dzichangoburwa dzinotsigira Type-C interface, asiwo makomputa emabhuku, makamera edhijitari, vatauri vakangwara, nharembozha dzemagetsi uye zvimwe zvishandiso zvatanga kutora TYPE-C yakatarwa USB interface, iyo yakaunzwa zvakabudirira mundima yemotokari. Panzvimbo pe USB-A, Tesla's Model 3 nyowani ine usB-C ports, uye Apple yakanyatso shandura macBooks ayo uye AirPods Pro kune yakachena USB Type-C ports yekuchinjisa data uye kuchaja. Pamusoro pezvo, zvinoenderana nezvinodiwa neEU, apuro ichashandisawo USB type-c interface mune ramangwana iPhone15, uye hapana mubvunzo kuti USB4 ichava iyo huru yechigadzirwa mumusika unotevera.
Zvinodiwa zve USB4 tambo
Shanduko huru mu USB4 nyowani kuunzwa kweiyo Thunderbolt protocol yakatarwa iyo Intel yakagovaniswa ne usb-kana. Kumhanya pamusoro pezviviri zvinongedzo, bandwidth yakapetwa kaviri kusvika ku40Gbps, uye Tunneling inotsigira akawanda data uye kuratidza mapuroteni. Mienzaniso inosanganisira PCI Express uye DisplayPort. Mukuwedzera, USB4 inochengetedza kuenderana kwakanaka nekuunzwa kweiyo nyowani yepasi pasi protocol, ichidzokera kumashure inoenderana ne USB3.2/3.1/3.0/2.0, pamwe neThunderbolt 3. Somugumisiro, USB4 yave yakanyanya kuomarara USB mwero kusvika nhasi, inoda kuti vagadziri vanzwisise USB4, USB3.2, USBC-yakananga Power uye USB Type-Delivery Power. Pamusoro pezvo, vagadziri vanofanirwa kunzwisisa mashandisirwo ePCI Express neDisplayPort, pamwe neiyo HIGH-DEFINITION yekudzivirira zvemukati (HDCP) tekinoroji inoenderana neUSB4 DisplayPort modhi, uye tambo nezvibatanidza zvatinoziva zvine zvakakwirira zvinodikanwa kuti zvizadzise zvinodiwa zvemagetsi zve USB4 tambo dzakapera zvigadzirwa.
Iyo coaxial vhezheni ye USB4 yakabuda pasina
Munguva ye USB3.1 10G, vagadziri vazhinji vakatora coaxial chimiro kuti vasangane nezvinodiwa zvepamusoro frequency performance. Coaxial vhezheni yanga isati yashandiswa mu USB series, mamiriro ekushandiswa kwayo anonyanya kunzi Notebook, nharembozha, GPS, yekuyeresa tekinoroji, Bluetooth tekinoroji, nezvimwewo. USB4 musika weakakwira-frequency kutapurirana zvinodiwa zvakanyanya uye zvakanyanya kuomarara, uye yakakwirira-kumhanya yekufambisa inoda waya ine yakasimba yekudzivirira-kukanganisa kugona uye kugadzikana kwemagetsi kuita, Kuti ive nechokwadi chekugadzikana kweiyo yakakwira frequency kutapurirana, yazvino USB4 ichiri iyo huru coaxial vhezheni, coaxial kugadzirwa uye kugadzira maitiro inzira yakaoma, kugadzirisa iyo yakakwira frequency yekugadzira uye yakakwira yekumhanyisa dhizaini dhizaini. Mukugadzirwa kwechigadzirwa, kusarudzwa kwezvinhu, maitiro ekugadzirisa uye kutonga kwemaitiro, magetsi maparamendi ehunyanzvi murabhoritari bvunzo anoita basa rakakosha, mukati mekukura kwebhodhoro reiyo coaxial chimiro, mukuwedzera kune yako (mutengo wezvinhu, kugadzirisa mutengo unodhura) zvimwe zvakanaka, asi kusimudzira kwemusika kunogara kuchitenderedza maitiro ekuwana mutengo mukuru webatch, Pair of twist gap uye budiriro yekutsvagisa kwagara kwagara kuri mukutsvagisa.
Inogona kuonekwa kubva pakugadzirwa kweiyo coaxial line, kubva mukati kuenda kunze, zvichiteerana: central conductor, insulating layer, yekunze conductive layer (metal mesh), tambo yeganda. Coaxial tambo inoumbwa inoumbwa nemakondakita maviri. Iyo yepakati waya ye coaxial tambo inoshandiswa kutumira masaini. Iyo simbi yekudzivirira mambure inotamba mabasa maviri: imwe ndeyekupa yazvino loop yechiratidzo seyakajairwa pasi, uye imwe ndeyekudzvinyirira kupindira kwemagetsi ruzha kune chiratidzo senge inodzivirira mambure. Iyo yepakati waya uye inodzivirira network pakati peiyo semi-foaming polypropylene insulation layer, iyo insulation layer inosarudza kutapurirana maitiro etambo, uye zvinobudirira kudzivirira waya yepakati, inodhura ine chikonzero chinodhura.
USB4 yakamonyoroka pairi vhezheni iri kuuya?
Sezvo maseketi emagetsi achishanda pama frequency epamusoro, maitiro emagetsi ezvikamu zvemagetsi anowedzera kuoma kubata. Kana iyo saizi yechikamu kana saizi yese yedunhu ichienzaniswa neavelength yeiyo frequency yekushanda yakakura kupfuura imwe, iyo yedunhu inductance capacitance kukosha, kana zvikamu iyo parasitic mhedzisiro yezvinhu zvezvinhu uye zvichingodaro, kunyangwe patakanga tichishandisa waya peya chimiro, basic frequency parameter kuyedzwa haigone kusangana nezvinodiwa nevatengi, uye inochinjika kupfuura iyo coaxial vhezheni yechimiro, Sei ini ndisingakwanisi kushandisa USB dhayamita iri kure nechimiro, nei ndisingagoni kushandisa USB dhayamita iri kure nechimiro? Kazhinji, kukwirisa kuwanda kwekushandiswa kwetambo, kupfupika kwewavelength yechiratidzo, uye kudiki kwe skew pitch, zviri nani kuenzanisa. Nekudaro, idiki yakawandisa splicing pitch ichaunza yakaderera kugadzirwa kwekuita uye sprain ye insulated musimboti waya. Iyo pitch yemutsara wepairi idiki kwazvo, huwandu hwekuzununguka kwakawanda, uye kushushikana kweiyo torsion pachikamu kunonangana zvakanyanya, zvichikonzera deformation yakakomba uye kukuvadzwa kweiyo insulation layer, uye pakupedzisira kukonzera kukanganisa kwemagetsi emagetsi, zvichikanganisa zvimwe zviratidzo zvemagetsi zvakaita seSRL kukosha uye kudzikisira. Kana insulation eccentricity iripo, chinhambwe chiri pakati pemakondakita chinochinja nguva nenguva nekuda kwekuchinja uye kutenderera kwekudzivirira mutsara mumwechete, izvo zvinounza kushanduka kwenguva nenguva kwe impedance. Nguva yekuchinja-chinja yakati rebei. Mukufambisa kwema frequency, iyi shanduko inononoka inogona kuwonekwa nemagetsi emagetsi uye inokanganisa kukosha kwekurasikirwa kwekudzoka. Iyo USB4 pair vhezheni haigone kushandiswa mumabhechi.
Kwete pasi, asi havadi kushandisa kufa kwako coaxial, saka vanhu vakatanga kuona mutsauko USB4 kudzivirira nzira dzekuita chigadzirwa, kuwring iyo hombe drawback iri nyore kumonyoroka conductor, uye mutsauko neparallel packet zvakanangana nebasa remumba, dzivisa conductor sprain, sezvatinoziva tese, parizvino INOSHANDISA musiyano weSAS, SFP + t. stranded vhezheni, basa rakakosha repamusoro frequency data mutsara kuendesa masiginecha edatha, asi patinoishandisa kutenderedza inogona kuoneka mhando dzese dzekuvhiringidza ruzivo. Ngatifungei nezve kana aya masaini ekupindira achipinda mukati conductor weiyo data mutsara uye superimpose pane yepakutanga inotapurirwa chiratidzo, zvinokwanisika here kupindira kana kushandura chiratidzo chepakutanga chakatumirwa, nekudaro zvichikonzera kurasikirwa kwechiratidzo chakakosha kana matambudziko? Uye mutsauko wealuminium foil layer ndeyekuendesa ruzivo kwatiri kuti tiite basa rekudzivirira nekudzivirira, rinoshandiswa kuderedza kupindira kwekunze kwakazvimiririra masaini ekutapurirana, iyo huru pasuru bhandi zvinhu uye aruminiyamu foil kudhonza ndeye kushandisa aruminiyamu foil chisimbiso uye nhovo, rimwe divi kana maviri mativi coating papurasitiki firimu, lu: sutu inoumbwa setambo foil. Cable foil inoda mashoma mafuta pamusoro, hapana maburi uye yakakwirira michina zvinhu. Maitiro ekuputira ndeyekuunganidza maviri insulated core waya uye pasi waya pamwechete kuburikidza nemuchina wekuputira. Panguva imwecheteyo, chigadziko chealuminium foil uye chigadziko che-self-adhesive polyester tepi pachingwa chekunze chinoshandiswa kudzivirira tambo yewaya uye kudzikamisa chimiro chekuputira core waya. Iyi nzira ine mhedzisiro yakakosha kune waya midziyo, inosanganisira impedance, kunonoka mutsauko, kudzikisira, nekuti izvi zvinofanirwa kuburitsa zvakanyanya nezvinodiwa zvehunyanzvi, kuita bvunzo kumidziyo yemagetsi, kuitira kuti ive nechokwadi chekuputira waya yepakati inoenderana nezvinodiwa. Ehe, haisi yese mitsara yedata ine mativi maviri ekudzivirira. Mamwe ane matinji akawanda, mamwe ane danda rimwe chete, kana asina zvachose. Shielding kupatsanurwa kwesimbi pakati penzvimbo mbiri dzepamhepo kudzora induction uye nemwaranzi yemagetsi, magineti uye emagetsi mafungu kubva kune imwe dunhu kuenda kune imwe. Kuve yakananga, iyo conductor musimboti wakakomberedzwa nemuviri unodzivirira kuti udzivise kukanganiswa nekunze kwemagetsi emagetsi shamba / chiratidzo chekuvhiringidza, uye kudzivirira kupindira kwemagetsi munda / chiratidzo kubva kupararira kunze. USB differential pair high frequency signal testing inogona kuenzaniswa necoaxial, differential pair USB4 tambo iri kuuya.
Nguva yekutumira: Aug-16-2022
