USB 3.2 Sainzi Yakakurumbira (Chikamu 2)

USB 3.2 Sainzi Yakakurumbira (Chikamu 2)

Mu USB 3.2 specification, high speed feature ye USB Type-C inoshandiswa zvizere. USB Type-C ine nzira mbiri dzekutumira data dzinomhanya, dzinonzi (TX1+/TX1-, RX1+/RX1-) uye (TX2+/TX2-, RX2+/RX2-). Kare, USB 3.1 yaingoshandisa imwe yenzira chete kutumira data, imwe nzira ichishandiswa se backup. Mu USB 3.2, nzira dzese dziri mbiri dzinogona kugoneswa mumamiriro ezvinhu akakodzera uye kuwana kumhanya kwekutumira kwe10 Gbps kune imwe neimwe chiteshi, zvichikonzera huwandu hwe20 Gbps. Ne 128b/132b encoding, kumhanya kwedata chaiko kunogona kusvika 2500 MB/s, inova kaviri zvakananga kana tichienzanisa ne USB 3.1 iripo. Zvakakosha kuziva kuti kuchinja kwechiteshi mu USB 3.2 hakuna musono uye hakudi chero mashandiro akakosha kubva kumushandisi.

Nzira yekugadzirisa chiratidzo nekudzivirira yetambo yeUSB3.1 inoenderana neya USB3.0. Kudzora kweimpedance kwemutsetse weSDP wakadzivirirwa unodzorwa pa 90Ω ± 5Ω, uye mutsetse we coaxial une magumo maviri unodzorwa pa 45Ω ± 3Ω. Kunonoka kwemukati kwepair ye differential kuri pasi pe 15ps/m, uye kurasikirwa kwekuisa pamwe nezvimwe zviratidzo zvinoenderana ne USB3.0. Chimiro chetambo chinosarudzwa zvichienderana nemamiriro ekushandisa uye zvinodiwa zvebasa nechikamu: VBUS: waya ina dzekuona kuti voltage ne current zviri kufamba zvakanaka; Vconn: Yakasiyana neVBUS, inopa voltage range ye 3.0~5.5V chete; inopa simba chete ku chip yetambo; D+/D-: USB 2.0 signal; kutsigira kupinza mberi nekudzoka, kune mapeya maviri ezviratidzo padivi re socket; TX+/- uye RX+/-: mapoka maviri ezviratidzo, mapeya mana ezviratidzo, kutsigira kupinza mberi nekudzoka; CC: chiratidzo chekugadzirisa, kusimbisa nekutarisira kubatana pakati pechinhu chinobuda neterminal; SUB: chiratidzo chebasa rekuwedzera, chinogona kushandiswa kune odhiyo.

Kana kupindirana kwemutsetse we differential wakadzivirirwa kuchidzorwa pa90Ω ± 5Ω, uye mutsetse we coaxial ukashandiswa, kudzoka kwechiratidzo pasi kunoitika kuburikidza neGND yakadzivirirwa. Kune mitsetse ye coaxial ine magumo maviri, kupindirana kunodzorwa pa45Ω ± 3Ω. Zvisinei, sarudzo yenzvimbo dzekubatanidza uye chimiro chetambo zvinoenderana nemamiriro ekushandisa uye kureba kwetambo dzakasiyana.

USB 3.2 Gen 1×1 – SuperSpeed, 5 Gbit/s (0.625 GB/s) data signaling rate pamusoro penzira imwe uchishandisa 8b/10b encoding, zvakafanana neUSB 3.1 Gen 1 neUSB 3.0.
USB 3.2 Gen 1×2 - SuperSpeed+, data itsva ye10 Gbit/s (1.25 GB/s) inokwira pamusoro penzira mbiri uchishandisa 8b/10b encoding.
USB 3.2 Gen 2×1 – SuperSpeed+, 10 Gbit/s (1.25 GB/s) data rate pamusoro penzira imwe chete uchishandisa 128b/132b encoding, zvakafanana neUSB 3.1 Gen 2.
USB 3.2 Gen 2×2 - SuperSpeed+, data itsva ye20 Gbit/s (2.5 GB/s) inokwira pamusoro penzira mbiri uchishandisa 128b/132b encoding.