截止2019年4月,USB 3.1 TYPE-C 規範的最新版已經升級到1.4版,TYPE-C手冊規範、標準,有各種TYPE-C連接器、電纜標準,內有TYPE-C音頻適配器標準,我們截取翻譯解讀了部分目錄,協會的規範是是各種開發、參考設計的必備手冊,如需要USB 3.1 TYPE-C 規範標準(版本:1.4),請文末留言郵箱地址,我們將整理後統一發送協會最新的規範!
USB-C, formally known as USB Type-C, is a 24-pin USB connector system, which is distinguished by its two-fold rotationally-symmetrical connector.
The USB Type-C Specification 1.0 was published by the USB Implementers Forum (USB-IF) and was finalized in August 2014.It was developed at roughly the same time as the USB 3.1 specification. In July 2016, it was adopted by the IEC as "IEC 62680-1-3"A device with a Type-C connector does not necessarily implement USB 3.1, USB Power Delivery, or any Alternate Mode: the Type C connector is common to several technologies while mandating only a few of them.
USB 3.2, released in September 2017, replaces the USB 3.1 standard. It preserves existing USB 3.1 SuperSpeed and SuperSpeed+ data modes and introduces two new SuperSpeed+ transfer modes over the USB-C connector using two-lane operation, with data rates of 10 and 20 Gbit/s (1250 and 2500 MB/s)
現在每個廠商都說自己產品有快充,真正意義的快充是需要充電器、手機、線材三者匹配,才能實現快充,對於高通QC、MTK PE等傳統高壓快充,對線材的要求最低,正規的普通usb數據線即可,對於OPPO、VIVO和華為等大電流快充,對線材的需求稍高,需要能過大電流線材,所謂的大電流最簡單的方法就是加大導體直徑降低電阻即可達成,沒有啥技術含量.
真正的type-c快充線是指支持USB-PD快充協議的線材,這種線材兩端都為type-c接口,就是我們所描述的滿PIN線材,具體參照:Type-C技術參數集錦
PD快充協議本身是type-c標準的一部分,支持給手機、平板、筆記本充電,支持雙向供電,大有取代和統一快充標準之勢。其電壓電流功率組合非常多(5-20v 0-5A 18W 30W 45W 65W 100W),握手通信過程遠複雜於其他快充標準,涉及到一定的數據通信.
因此僅靠普通usb接口無法實現,必須採用type-c對type-c的數據線才能實現pd快充。(Type-c是24pin接口,有專門用於快充通信的引腳。而普通USB 3.0的接口只有9pin,沒有專用於快充的引腳,只能復用引腳).參照下圖的引用描述
Receptacles
The receptacle features four power and four ground pins, two differential pairs for high-speed USB data (though they are connected together on devices), four shielded differential pairs for Enhanced SuperSpeed data (two transmit and two receive pairs), two Sideband Use (SBU) pins, and two Configuration Channel (CC) pins
Plugs,具體參照:Type-C 技術參數圖解發布
The male connector (plug) has only one high-speed differential pair, and one of the CC pins is replaced by VCONN, to power electronics in the cable, and the other is used to actually carry the Configuration Channel signals. These signals are used to determine the orientation of the cable, as well as to carry USB Power Deliverycommunications.
Alternate Mode partner specifications
As of 2018, five system-defined Alternate Mode partner specifications exist. Additionally, vendors may support proprietary modes for use in dock solutions. Alternate Modes are optional; USB-C features and devices are not required to support any specific Alternate Mode. The USB Implementers Forum is working with its Alternate Mode partners to make sure that ports are properly labelled with respective logos
本次會議特別邀請了TÜV 南德廣州分公司工業零部件產品部經理麻騰先生與深圳市連接器行業協會常務副秘書長劉海濤為大家帶來精彩分享.
點擊網址了解更多會議詳情:
http://www.big-bit.com/Meeting/2019cdz3/index.html
更多關於最新的線纜行業發展訊息,請關注我們的微信公眾號!我們將第一時間搜尋到行業前沿訊息和您一起分享!同時也請加入我們的通訊錄,讓更多同行一起幹更多屬於我們可以一起幹的事情!
☞如何關注我們?
微信搜索公眾號:線纜行業朋友分享圈
更多關於最新的線纜行業發展訊息,請關注我們的微信公眾號!我們將第一時間搜尋到行業前沿訊息和您一起分享!