Pūtaiao Rongonui USB 3.2 (Wāhanga 2)

Pūtaiao Rongonui USB 3.2 (Wāhanga 2)

I roto i ngā whakatakotoranga USB 3.2, ka whakamahia katoatia te āhuatanga tere-teitei o te USB Momo-C. E rua ngā hongere tuku raraunga tere-teitei o te USB Momo-C, ko (TX1+/TX1-, RX1+/RX1-) me (TX2+/TX2-, RX2+/RX2-). I mua, kotahi noa te hongere i whakamahia e te USB 3.1 hei tuku raraunga, ko tētahi atu hongere hei tārua. I roto i te USB 3.2, ka taea te whakahohe i ngā hongere e rua i raro i ngā āhuatanga tika, ā, ka eke ki te tere tuku mōrahi o te 10 Gbps mō ia hongere, ka hua ake ko te katoa o te 20 Gbps. Mā te whakawaehere 128b/132b, ka taea e te tere raraunga tuturu te eke ki te 2500 MB/s, he takirua tika tēnei ki te USB 3.1 o nāianei. He mea tika kia mōhio ko te whakawhiti hongere i roto i te USB 3.2 he tino maeneene, ā, kāore e hiahiatia he mahi motuhake mai i te kaiwhakamahi.

He rite tonu te tikanga tukatuka tohu me te ārai o te taura USB3.1 ki tērā o te USB3.0. Ko te mana ārai o te raina rerekētanga ārai SDP e whakahaeretia ana i te 90Ω ± 5Ω, ā, ko te raina coaxial kotahi-pito e whakahaeretia ana i te 45Ω ± 3Ω. Ko te whakaroa ā-roto o te takirua rerekētanga he iti iho i te 15ps/m, ā, ko te ngaronga whakaurunga me ētahi atu tohu he rite tonu ki te USB3.0. Ka tīpakohia te hanganga taura kia rite ki te horopaki tono me ngā whakaritenga mahi me te kāwai: VBUS: 4 waea hei whakarite i te rere o te ngaohiko me te iahiko; Vconn: He rerekē i te VBUS, ka whakaratohia he awhe ngaohiko o te 3.0 ~ 5.5V anake; ka tukuna noa te hiko ki te maramara o te taura; D+/D-: tohu USB 2.0; hei tautoko i te whakaurunga whakamua me te whakamuri, e rua ngā takirua tohu i te taha o te putanga; TX+/- me RX+/-: 2 rōpū tohu, 4 takirua tohu, e tautoko ana i te whakaurunga whakamua me te whakamuri; CC: tohu whirihoranga, e whakaū ana, e whakahaere ana hoki i te hononga i waenga i te pūtake me te pūrua; SUB: tohu mahi whakawhānui, ka taea te whakamahi mō te oro.

Mena ka whakahaerea te aukati o te raina rerekētanga kua āraia i te 90Ω ± 5Ω, ā, ka whakamahia he raina coaxial, ka puta te hokinga whenua tohu mā te GND kua āraia. Mō ngā raina coaxial kotahi-pito, ka whakahaerea te aukati i te 45Ω ± 3Ω. Heoi, ko te whiriwhiri i ngā pūwāhi hononga me te hanganga taura ka whakawhirinaki ki ngā āhuatanga tono me te roa o ngā taura rerekē.

USB 3.2 Gen 1×1 – SuperSpeed, 5 Gbit/s (0.625 GB/s) tere tuku raraunga i runga i te ara kotahi mā te whakamahi i te whakawaehere 8b/10b, he rite ki te USB 3.1 Gen 1 me te USB 3.0.
USB 3.2 Gen 1×2 – SuperSpeed+, he tere raraunga hou 10 Gbit/s (1.25 GB/s) mō ngā ara e 2 mā te whakamahi i te whakawaehere 8b/10b.
USB 3.2 Gen 2×1 – SuperSpeed+, tere raraunga 10 Gbit/s (1.25 GB/s) i runga i te ara kotahi mā te whakamahi i te whakawaehere 128b/132b, rite tonu ki te USB 3.1 Gen 2.
USB 3.2 Gen 2×2 – SuperSpeed+, he tere raraunga hou 20 Gbit/s (2.5 GB/s) mō ngā ara e 2 mā te whakamahi i te whakawaehere 128b/132b.