Usb type-c。 USB Type

VESA - Interface Standards for The Display Industry. These signals are used to determine the orientation of the cable, as well as to carry communications. USB-C cables that do not have shielded SuperSpeed pairs, sideband use pins, or additional wires for power lines can have increased cable length, up to 4 m. 5 m Alternate Mode USB-C ports can be interconnected with standard passive full-featured USB Type-C cables. 0 A at 5 V in addition to baseline bus power provision; power sources can either advertise increased USB current through the configuration channel, or they can implement the full USB Power Delivery specification using both BMC-coded configuration line and legacy -coded V BUS line. It is also used on USB-C docks designed to connect a device to a power source, external display, USB hub, and optional extra such as a network port with a single cable. 0 cables, as it still features the pins used for these traditional data protocols. See also: An Alternate Mode dedicates some of the physical wires in a USB-C 3. The USB connector goes all the way back to 1996 with the USB Type-A connector that you will probably still find on your PC and laptop. To overcome these issues, USB Type-C port protection must be used between USB-C connector and USB-C Power Delivery controller. But many devices use something called a Power Delivery PD protocol, which will let a USB-C cable deliver up to 100 watts. USB-C devices [ ] An increasing number of motherboards, notebooks, tablet computers, smartphones, hard disk drives, and other devices released from 2014 onwards feature USB-C receptacles. 1 Type-C cable Adapter cable or adapter Construction USB DisplayPort Thunderbolt superMHL HDMI HDMI DVI-D Component video 3. USB Type-C Port Controller Interface Specification [ ] The USB Type-C Port Controller Interface Specification was published 2017-10-01. USB Type-C pushes the power delivery even further when connecting two of the ports together, with options for 1. 2 port will get you 20 gigabytes per second. 0 and USB Power Delivery protocols are always available. Billboard messages can be used to identify incompatible connections made by users. As you probably spotted on the diagram above, USB Type-C is backward compatible with USB 3. Active adapters with a built-in DAC have near-universal support for devices that output digital and analog audio, adhering to the Audio Device Class 3. A third alternative is to establish a Power Delivery contract. The USB Type-C Specification 1. 0 Billboard Device Class is defined to communicate the details of supported Alternate Modes to the computer host OS. While USB Type-C is the official name for the standard, mainstream usage often drops down to just USB C. Universal Serial Bus Type-C Cable and Connector Specification Revision 1. Nevertheless, the MIC and AGND pins must have automatic swap capability, for two reasons: firstly, the USB-C plug may be inserted either side; secondly, there is no agreement, which shall be GND and MIC, so devices equipped with a headphone jack with microphone input must be able to perform this swap anyway. The audio adapter may optionally include a USB-C charge-through port to allow 500 mA device charging. An additional low band bidirectional channel other than SBU may share that CC pin as well. The standard supports the transfer of both digital and analog audio signals over the USB port. Devices [ ] Devices may be hosts with a downstream-facing port, DFP or peripherals with an upstream-facing port, UFP. Hence, the source host does not require any connection management circuitry, but it lacks the same physical connector so therefore USB-C is not backward compatible. USB 3. This may result in an overvoltage on the VBUS pin. V CONN must not traverse end-to-end through the cable. 0 can support 8K resolution at 60 Hz with HDR10 color. So as well as being the first reversible design, USB Type-C also greatly expands the number of pins and thus its capabilities too. The sound quality is dependent on the phone's onboard DAC. Some isolation method must be used. Overview [ ] USB-C cables interconnect hosts and devices, replacing various other electrical cables and connectors, including and , , , and. stands for "Universal Serial Bus. 0 data pins and one configuration pin can be used for alternate mode transmission. Because Thunderbolt can encapsulate DisplayPort data, every Thunderbolt controller can either output DisplayPort signals directly over "DisplayPort Alternative Mode" or encapsulated within Thunderbolt in "Thunderbolt Alternate Mode". It defines a common interface from a USB-C Port Manager to a simple USB-C Port Controller. This is essentially a direct connection to USB digital ground. 2 was published 2016-03-25• 0 cables and ports boasting an extra high-speed data lane. Some popular devices that use USB-C cables are the Nintendo Switch, MacBook Pro, and Samsung Galaxy line of phones. They are electronically marked cables that contain a chip with an ID function based on the configuration channel and vendor-defined messages VDM from the specification. 5 m due to limitations of current cable technology. There are primarily two types of USB-C adapters active adapters with , passive adapters without DACs and two modes of audio output from devices phones without onboard DACs that send out digital audio, phones with onboard DACs that send out analog audio. 1 link can be established concurrently to the Alternate Mode. Plugs [ ] The male connector plug has only one high-speed differential pair, and one of the CC pins is replaced by V CONN CC2 , to power electronics in the cable, and the other is used to actually carry the Configuration Channel signals. These cables are marked with a Thunderbolt logo on both ends. 3 14 July 2017 , Revision History, page 14. This allows for charge-through hub or applications where the USB-C device acts as a USB data host while acting as a power consumer rather than a source. A look at the USB Type-C connector First, a quick history. Low cost peripherals mostly connect via "DisplayPort Alternate Mode" while some docking stations tunnel DisplayPort over Thunderbolt. It is transparent to any data transmission mode, and can therefore be used together with any of them as long as the CC pins are not clobbered. By default, a USB-C cable plugged into a USB 3. In addition, USB-C is narrow enough that it can fit on phones with no problem. IEC 62680-1-3:2018 2018-05-24, edition 3. Alternate Mode hosts and sinks can be connected with either regular full-featured USB-C cables, or with converter cables or adapters: USB 3. In regard to power, the devices are supposed to negotiate a Power Delivery contract before an alternate mode is entered. x uplinks in order to allow operation of both type devices connected to it. 5 mm jack, providing four standard analog audio connections Left, Right, Microphone, and Ground. In short: USB-C cables far outpace other types of USB cables. Audio Adapter Accessory Mode [ ] In this mode, all digital circuits are disconnected from the connector, and certain pins become reassigned for analog outputs or inputs. 0 "Universal serial bus interfaces for data and power — Part 1-3: Common components — USB Type-C Cable and Connector Specification" Receptacles [ ] The receptacle features four power and four ground pins, two for data though they are connected together on devices , four shielded differential pairs for data two transmit and two receive pairs , two Sideband Use SBU pins, and two Configuration Channel CC pins. Video output [ ] Currently, DisplayPort is the most widely implemented alternate mode, and is used to provide video output on devices that do not have standard-size DisplayPort or HDMI ports, such as smartphones and laptops. Also due to the fine pitch of the USB-C receptacle, the VBUS pin from the cable may contact with the CC pin of the USB-C receptacle resulting in a short-to-VBUS electrical issue due to the fact that the VBUS pin is rated up to 20 V while the CC pins are rated up to 5. This can be used to augment the basic charging options with even higher power delivery all the way up to 100W. Contacts B6 and B7 should not be present in the plug. They feature the ability to connect as either host or device based on what has been attached and are software configurable as a dedicated host, dedicated device, or dual role. 0 differential pair, position 1, negative A8 SBU1 Sideband use SBU A9 V BUS Bus power A10 SSRXn2 SuperSpeed differential pair 4, RX, negative A11 SSRXp2 SuperSpeed differential pair 4, RX, positive A12 GND Ground return USB-C receptacle B pin layout Pin Name Description B12 GND Ground return B11 SSRXp1 SuperSpeed differential pair 2, RX, positive B10 SSRXn1 SuperSpeed differential pair 2, RX, negative B9 V BUS Bus power B8 SBU2 Sideband use SBU B7 Dn2 USB 2. 0 can use up to 80 Gbps, which is double the amount available to USB data, because it sends all the data in one direction to the monitor and can thus use all eight data lanes at once. 0 Type-C cable wiring Plug 1, USB Type-C USB Type-C cable Plug 2, USB Type-C Pin Name Wire color No Name Description 2. These functions are sometimes implemented directly into the display instead of a separate dock, meaning a user connects their device to the display via USB-C with no other connections required. from iPad Pro 3rd and 4th generation's, iPad Air 4th generation onwards works with USB-C. , released in 2019, is the first USB transfer protocol standard that is only available via USB-C. The bottom line is that USB Type-C devices should enable faster data transfers and charge times than previous models. Receptacles are found on devices and adapters. They do not support USB 3 backwards compatibility, only USB 2 or Thunderbolt. In terms of speeds, USB Type-C was designed to offer the same speeds as USB 3. This is much faster than any other sort of USB connector. USB-C port receptacle on a The 24-pin double-sided connector is slightly larger than the , with a USB-C port measuring 8. Specifications [ ] USB Type-C Cable and Connector Specification [ ] The USB Type-C specification 1. List of Alternate Mode partner specifications Logo Name Date Protocol Published in September 2014 , Announced in November 2014 1. This means that it can be a standard connector for both computers and phones, as well as other devices like game consoles. , released in September 2017, replaces the USB 3. Leswing, Kif 5 November 2015. After entering debug accessory mode, optional orientation detection via the CC1 and CC2 is done via setting CC1 as a pullup of Rd resistance and CC2 pulled to ground via Ra resistance from the test system type-C plug. USB Type-C Authentication Specification [ ] Adopted as IEC specification:• IEC 62680-1-3:2016 2016-08-17, edition 1. In addition, DisplayPort and MHL Alternate Modes can transmit on one, two, or four SuperSpeed lanes, so two of the remaining lanes may be used to simultaneously transmit USB 3. , starting with the 2015, supports USB 3. This mode also allows concurrent charging of a device exposing the analog audio interface through V BUS and GND , however only at 5 V and 500 mA, as CC pins are unavailable for any negotiation. However, further adoption of USB-C is limited by the comparatively high cost of USB-C cables and connectors. Rev 1. 5 mm audio adapters and USB sound cards compatibility Output mode Specification Devices USB-C adapters Active, with Passive, without Digital audio Audio Device Class 3. Burke, Steve 25 March 2019. All Chromebooks with a USB-C port are required to support DisplayPort alternate mode in Google's hardware requirements for manufacturers. Additionally, vendors may support proprietary modes for use in dock solutions. A device with a Type-C connector does not necessarily implement USB, , or any : the Type-C connector is common to several technologies while mandating only a few of them. USB-C receptacle pin usage in different modes [ ] The diagrams below depict the pins of a USB-C socket in different use cases. Alternate Modes are optional; USB-C features and devices are not required to support any specific Alternate Mode. released the Extensible Host Controller Interface, supporting , with release 8. 1, USB-C, alternate modes, billboard device class, power delivery and USB Dual-Role. Two kinds of connectors exist, female receptacle and male plug. A USB-C cable is a recent type of USB connector that's easier to use and more powerful than older USB types. The engineering specification states that an analog headset shall not use a USB-C plug instead of a 3. 1, USB-C, alternate modes, and power delivery. 0 was published by the USB-IF and was finalized in August 2014. 0 "Universal serial bus interfaces for data and power — Part 1-3: Common components — USB Type-C Cable and Connector Specification"• USB IF requires for certification that security and privacy consideration and precaution has been taken and that the user has actually requested that debug test mode be performed. Examples of such active adapters include external and DACs that do not require special drivers, and USB-C to 3. Related USB-IF specifications [ ] USB Type-C Locking Connector Specification [ ] The USB Type-C Locking Connector Specification was published 2016-03-09. 0 "Universal serial bus interfaces for data and power — Part 1-3: Universal Serial Bus interfaces — Common components — USB Type-C cable and connector specification"• SBU1, SBU2 provide an additional lower speed link. Finally, again works with USB 2. The USB Type-C controllers support autonomous and accessory detection, advanced cable solutions, USB-C audio in addition to meeting compliance standards. It's completely symmetrical, so it's impossible to insert incorrectly. A Samsung Galaxy S8 plugged into a DeX docking station: The monitor is displaying the PowerPoint and Word Android applications. 0: USB 4 supports DisplayPort 2. x connection is active, but devices like hubs open simultaneous 2. Cables can be marked for both Thunderbolt and 5 A power delivery at the same time. Cunningham, Andrew 9 January 2015. Almost-but-not-quite symmetric, it's infuriatingly difficult to insert properly on the first try. Universal Serial Bus Type-C Cable and Connector Specification Revision 1. In addition to the default power options, Type-C devices can be fully compatible with the specifications. USB-C to USB-C cables supporting 5A current must contain e-marker chips also marketed as E-Mark chips programmed to identify the cable and its current capabilities. As time goes on, more and more devices will start using USB-C. In other words, headsets with a USB-C plug should always support digital audio and optionally the accessory mode. These USB-C cables only support 2. The conversion by the DAC and amplifier is done inside of the headphones or adapter, instead of on the phone. As well as delivering data, USB Type-C is designed to power all of our gadgets and not just the portable ones. Video over the connector can come in a number of different forms, these include HDMI, superMHL, and DisplayPort standards. 1 cable for direct device-to-host transmission of alternate data protocols. Conversion by adapter Passthrough Compatibility with other fast charging technology [ ] In 2016, Benson Leung, an engineer at Google, pointed out that 2. The SBU pins become a microphone pin MIC, and the analog ground AGND, the latter being a return path for both outputs and the microphone. Conversion by adapter Conversion unavailable Analog audio 0 digital audio• 0 differential pair, position 2, positive B5 CC2 Configuration channel B4 V BUS Bus power B3 SSTXn2 SuperSpeed differential pair 3, TX, negative B2 SSTXp2 SuperSpeed differential pair 3, TX, positive B1 GND Ground return• 3 14 July 2017 , section A, page 213. It was developed at roughly the same time as the specification. " It was named this because engineers felt it would replace other connectors on the market to become the one universal connector. The presence of the audio accessory is signalled through the configuration channel and V CONN. 0 data speeds over this new connector. IEC 62680-1-3:2017 2017-09-25, edition 2. 1 is typically not used when USB 3. USB-C devices may optionally provide or consume bus power currents of 1. 0 Specification [ ] USB Audio Device Class 3. The portfolio also includes AEC-Q101 Qualified and PPAP Capable options specifically engineered and qualified for automotive industry applications. Cables with this issue may not work properly with certain products, including Apple and Google products, and may even damage power sources such as chargers, hubs, or PC USB ports. Passive adapters without a built-in DAC are only compatible with devices that output analog audio, adhering to the Audio Adapter Accessory Mode specification. Later in the year, Qualcomm released Quick Charge 4 technology, which cited — as an advancement over previous generations — "USB Type-C and USB PD compliant". These are generally split into three types: USB 3. Archived from PDF on 20 December 2016. The USB Implementers Forum is working with its Alternate Mode partners to make sure that ports are properly labelled with respective logos. If two high speed links remain unused, then a USB 3. Other devices may have fallback mode to 2. USB-C plug pinout end-on view Cables [ ] Full-featured USB 3. Different devices have different types of USB ports. The conversion by the DAC and amplifier is done on the phone; the headphones or adapter simply passthrough the signal. 1 can be transmitted simultaneously when the video signal bandwidth requires two or fewer lanes. 1, USB-C, alternate modes, power delivery, and USB Dual-Role support. All Thunderbolt 3 controllers both support "Thunderbolt Alternate Mode" and "DisplayPort Alternate Mode". These are enabled via Alternate Mode which frees up the SBU and high-speed data pins for use with other standards. 0 technologies developed by are not compatible with the USB-C standard. Archived from PDF on 18 February 2017. See also [ ]• References [ ]• wiring to Type-C male plug Figure A-2 of USB Type-C Cable and Connector Specification Release 1. Archived from PDF on 14 September 2016. Alternate Mode does not employ USB 2. On plug insertions, this will pull down both CC and VCONN in the plug CC1 and CC2 in the receptacle. Wrap up As you can see from all of the above, USB Type-C is a complicated connector and not just in its physical designs. USB-C receptacle on an MSI laptop USB-C formally known as USB Type-C is a 24-pin connector system with a rotationally symmetrical. Here's what you should know about , the best take on the technology in years. These types of ports are called Dual-Role-Data DRD ports, which was known as in the previous specification. 5 mm headphone jack adapters by Apple, Google, Essential, Razer, HTC. PD cables can charge laptops and other high-wattage devices, something impossible for the older USB standards. 0 was published 2019-08-29• 2 25 March 2016 , table 3—1, page 27. As time goes on, more and more devices will likely use USB-C cables, so it's good to have one around. 1 speeds over the Type-C connector, with 4K and 8K resolutions at up to 60fps supported on fast enough setups. Over the years, a half-dozen variations of have emerged, including mini-USB and micro-USB. In July 2016, it was adopted by the as "IEC 62680-1-3". Programmability, flexibility, cost-effectiveness, system robustness, small footprint, and easy manufacturing, together, provide system designers with the tools for easy designs with high integration. Opam, Kwame 5 November 2015. is available via a converter cable, enabling up to a 4K resolution, surround sound, and even 3D content playback. Using full-featured USB-C cables for Alternate Mode connections provides some benefits. Things do get a little complicated here though, as there are multiple different standards and protocols that can be used to power USB devices. Unfortunately, things didn't work out so neatly. 0 and Audio Adapter Accessory Mode specifications. Some, such as , can take either role depending on what kind is detected on the other end. 0 differential pair, position 2, negative B6 Dp2 USB 2. The adapters for video Alt Modes may allow conversion from native video stream to other video interface standards e. Rev 2. One port for everything In addition to power and data, USB Type-C is designed to support a wide variety of different modes and standards too, positioning it as a one-size-fits-all solution for a selection of technologies. USB Charging ports should also be clearly marked with capable power wattage. It defines the mechanical requirements for USB-C plug connectors and the guidelines for the USB-C receptacle mounting configuration to provide a standardized screw lock mechanism for USB-C connectors and cables. Rev 1. USB4 Specification [ ] The specification released in 2019 is the first USB data transfer specification to require USB-C connectors. For dual-lane data transfers, all four differential pairs are in use. added USB-C and billboard support in an update. One of the CC pins is used to negotiate the mode. The Universal Serial Bus Type-C Cable and Connector Specification is included in a set of USB documents which can be downloaded from. Universal Serial Bus Type-C Cable and Connector Specification Revision 1. USB-C receptacle A pin layout Pin Name Description A1 GND Ground return A2 SSTXp1 SuperSpeed differential pair 1, TX, positive A3 SSTXn1 SuperSpeed differential pair 1, TX, negative A4 V BUS Bus power A5 CC1 Configuration channel A6 Dp1 USB 2. USB Type-A, B, micro, and mini all share the same basic internal connections it was just the port shaped that varies , with faster 3. Schoon, Ben 1 November 2018. Name [ ] USB Type-C and USB-C are trademarks of USB Implementers Forum. Compatibility issues [ ] Power issues with cables [ ] Many cables claiming to support USB-C are actually not compliant to the standard. Alternate Mode protocol support matrix for USB-C cables and adapters Mode USB 3. 0 differential pair, position 1, positive A7 Dn1 USB 2. However, all of these modes also require additional hardware and software support behind the port, so checking the compatibility of your device is a must. Universal Serial Bus Type-C Cable and Connector Specification Release 1. 0 in 2000 and was the connector port of choice for the vast majority of portable gadgets until USB Type-C came along in 2014. 1 3 April 2015 , page 60, table 3—13, note 1. 5 m requires active USB-C cables that are certified and electronically marked for high-speed Thunderbolt 3 transmission, similarly to high-power 5 A cables. adapters with a USB-A or USB-B plug with a USB-C receptacle are "not defined or allowed" by the specification because they can create "many invalid and potentially unsafe" cable combinations. 3 was published 2017-07-14• 1 was published 2021-05-25 - Extended Power Range - 48 - 5 - 240 Adoption as IEC specification:• 0 defines powered digital audio headsets with a USB-C plug. A single connector with many features sounds great, but the optional nature of support makes it impossible to tell what a port or cable is capable of just by looking at it. When a defective USB-C cable or power source is used, the voltage seen by a USB-C device can be different from the voltage expected by the device. Data speeds and power This new pin layout has some implications for both data transfer speeds and power delivery. However, due to demands for backward compatibility only fully featured USB Type-C ports and cables guarantee USB 3. USB-C cables can be used to quickly charge many popular devices, including the MacBook Pro and Nintendo Switch, and transfer data faster than any other USB type. V BUS and GND provide 5 V up to 900 mA, in accordance with the USB 3.。

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