USB

The engineering specification states that an analog headset shall not use a USB-C plug instead of a 3. They are not required to negotiate Alternate Modes and only appear when negotiation fails between the host source and device sink. 3 14 July 2017 , section A, page 213. The four high-speed lanes, two side-band pins, and for dock, detachable device and permanent cable applications only two USB 2. These are enabled via Alternate Mode which frees up the SBU and high-speed data pins for use with other standards. USB Type-C triples the pin count from USB 3. Receptacles are found on devices and adapters. 5 m Alternate Mode USB-C ports can be interconnected with standard passive full-featured USB Type-C cables. 1, USB-C, alternate modes, and power delivery. 0 and Audio Adapter Accessory Mode specifications. 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. USB-C port receptacle on a The 24-pin double-sided connector is slightly larger than the , with a USB-C port measuring 8. 0 defines powered digital audio headsets with a USB-C plug. Some isolation method must be used. If two high speed links remain unused, then a USB 3. In terms of speeds, USB Type-C was designed to offer the same speeds as USB 3. 0 Specification [ ] USB Audio Device Class 3. And Thunderbolt 3 ports allow USB-C cables to carry a substantial 40 gigabytes per second. Low cost peripherals mostly connect via "DisplayPort Alternate Mode" while some docking stations tunnel DisplayPort over Thunderbolt. 0 cables and ports boasting an extra high-speed data lane. USB4 Specification [ ] The specification released in 2019 is the first USB data transfer specification to require USB-C connectors. This resistance must be less than 800 ohms which is the minimum "Ra" resistance specified in the USB Type-C specification. In this mode, all digital circuits are disconnected from the connector, and the 14 bold pins can be used to expose debug related signals e. 0 data pins and one configuration pin can be used for alternate mode transmission. The USB Implementers Forum is working with its Alternate Mode partners to make sure that ports are properly labelled with respective logos. See also: An Alternate Mode dedicates some of the physical wires in a USB-C 3. The portfolio of USB Type-C devices from ON Semiconductor includes a variety of low power USB Type-C controllers, including those with Power Delivery PD protocol. 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. 1 was published 2015-04-03• 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. 2 25 March 2016 , table 3—1, page 27. 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. Devices [ ] Devices may be hosts with a downstream-facing port, DFP or peripherals with an upstream-facing port, UFP. 0 can support 8K resolution at 60 Hz with HDR10 color. VESA - Interface Standards for The Display Industry. , starting with the 2015, supports USB 3. Some, such as , can take either role depending on what kind is detected on the other end. One of the CC pins is used to perform all the negotiation. As well as delivering data, USB Type-C is designed to power all of our gadgets and not just the portable ones. Universal Serial Bus Type-C Cable and Connector Specification Revision 1. Universal Serial Bus Type-C Cable and Connector Specification Revision 1. 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. Dolby Atmos surround sound is incorporated, as is backward compatibility with existing MHL specifications. Archived from PDF on 20 December 2016. In July 2016, it was adopted by the as "IEC 62680-1-3". SBU1, SBU2 provide an additional lower speed link. Rev 1. USB Type-C pushes the power delivery even further when connecting two of the ports together, with options for 1. 1 Type-C cable Adapter cable or adapter Construction USB DisplayPort Thunderbolt superMHL HDMI HDMI DVI-D Component video 3. 1 speeds over the Type-C connector, with 4K and 8K resolutions at up to 60fps supported on fast enough setups. A USB-C cable is a recent type of USB connector that's easier to use and more powerful than older USB types. 0 "Universal serial bus interfaces for data and power — Part 1-3: Common components — USB Type-C Cable and Connector Specification"• The modes are configured using vendor-defined messages VDM through the configuration channel. All USB-C cables must be able to carry a minimum of 3 A current at 20 V, 60 W but can also carry high-power 5 A current at 20 V, 100 W. 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. This can be used to augment the basic charging options with even higher power delivery all the way up to 100W. Alternate Mode protocol support matrix for USB-C cables and adapters Mode USB 3. These USB-C cables only support 2. Contacts B6 and B7 should not be present in the plug. Programmability, flexibility, cost-effectiveness, system robustness, small footprint, and easy manufacturing, together, provide system designers with the tools for easy designs with high integration. 0 Announced in June 2015 also carries or Announced in September 2016 Announced in July 2018 not yet standardized Other protocols like have been proposed, although Thunderbolt 3 and later are also capable of 10 Gigabit Ethernet networking. As you probably spotted on the diagram above, USB Type-C is backward compatible with USB 3. The sound quality is dependent on the phone's onboard DAC. released the Extensible Host Controller Interface, supporting , with release 8. The standard provides a wider range of possible implementations than ever before, ranging from faster data and power speeds through to extra optional multimedia features. 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. 0 differential pair, position 1, positive A7 Dn1 USB 2. Alternate Mode partner specifications [ ] As of 2018, five system-defined Alternate Mode partner specifications exist. The audio adapter may optionally include a USB-C charge-through port to allow 500 mA device charging. It's completely symmetrical, so it's impossible to insert incorrectly. 1 data speeds, and there are a number of devices out there that still only offer USB 2. Finally, again works with USB 2. IEC 62680-1-3:2016 2016-08-17, edition 1. In single-lane mode, only the differential pairs closest to the CC pin are used for data transmission. Plugs are found on cables and adapters. Compatibility issues [ ] Power issues with cables [ ] Many cables claiming to support USB-C are actually not compliant to the standard. Schoon, Ben 1 November 2018. 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. USB-C plug pinout end-on view Cables [ ] Full-featured USB 3. 0 Billboard Device Class Specification [ ] USB 2. However, further adoption of USB-C is limited by the comparatively high cost of USB-C cables and connectors. For audio, the connector supports digital audio via the USB Audio Class specification, of which version 3. A look at the USB Type-C connector First, a quick history. Archived from PDF on 16 August 2017. 0 differential pair, position 2, negative B6 Dp2 USB 2. Using full-featured USB-C cables for Alternate Mode connections provides some benefits. 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". The standard supports the transfer of both digital and analog audio signals over the USB port. In regard to power, the devices are supposed to negotiate a Power Delivery contract before an alternate mode is entered. They are suited to applications and such as mobile chargers, power adapters, automotive, and wired communication for notebook and desktop PCs, mobile phones, tablets, digital cameras, media players, and infotainment, among others. Video over the connector can come in a number of different forms, these include HDMI, superMHL, and DisplayPort standards. However, due to demands for backward compatibility only fully featured USB Type-C ports and cables guarantee USB 3. Archived from PDF on 14 September 2016. 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. Two kinds of connectors exist, female receptacle and male plug. is available via a converter cable, enabling up to a 4K resolution, surround sound, and even 3D content playback. 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. 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. 1 cable for direct device-to-host transmission of alternate data protocols. Archived from PDF on 14 August 2014. The mode, if supported, is entered when both CC pins are shorted to GND. 5 mm jack, providing four standard analog audio connections Left, Right, Microphone, and Ground. The Universal Serial Bus Type-C Cable and Connector Specification is included in a set of USB documents which can be downloaded from. V BUS and GND provide 5 V up to 900 mA, in accordance with the USB 3. Connecting an older device to a host with a USB-C receptacle requires a cable or adapter with a USB-A or USB-B plug or receptacle on one end and a USB-C plug on the other end. All Chromebooks with a USB-C port are required to support DisplayPort alternate mode in Google's hardware requirements for manufacturers. Unfortunately, things didn't work out so neatly. In other words, headsets with a USB-C plug should always support digital audio and optionally the accessory mode. Again no one way is wrong, though USB Type-C is technically more accurate. Qualcomm responded that it is possible to make fast charge solutions fit the voltage demands of USB-C and that there are no reports of problems; however, it did not address the standard compliance issue at that time. 0 differential pairs Dp and Dn for Right and Left and the two side-band use pairs for Mic and GND. stands for "Universal Serial Bus. 0 technologies developed by are not compatible with the USB-C standard. As time goes on, more and more devices will likely use USB-C cables, so it's good to have one around. 1, USB-C, alternate modes, power delivery, and USB Dual-Role support. Other devices may have fallback mode to 2. , released in September 2017, replaces the USB 3. , released in 2019, is the first USB transfer protocol standard that is only available via USB-C. 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. , DisplayPort, HDMI, VGA or DVI. This may result in an overvoltage on the VBUS pin. 0 digital audio Google Pixel 2, HTC U11, Essential Phone, Razer Phone, Samsung Galaxy Note 10, Samsung Galaxy S10 Lite, Sharp Aquos S2, Asus ZenFone 3, Bluedio T4S, Lenovo Tab 4, GoPro, MacBook etc. 5 watts of power, which is the same as most USB-A connectors. V BUS and GND provide 5 V up to 500 mA of current. The switch to USB Type-C should have simplified this complicated situation, ensuring that newer devices all operate with the fastest possible speeds. References [ ]• IEC 62680-1-3:2017 2017-09-25, edition 2. USB Charging ports should also be clearly marked with capable power wattage. A Samsung Galaxy S8 plugged into a DeX docking station: The monitor is displaying the PowerPoint and Word Android applications. 5 m due to limitations of current cable technology. It defines requirements for cables and connectors. 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. This is essentially a direct connection to USB digital ground. 2, and Thunderbolt 3 the latter mainly found on Apple computers. 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". 1 link can be established concurrently to the Alternate Mode. So as well as being the first reversible design, USB Type-C also greatly expands the number of pins and thus its capabilities too. Alternate Modes are optional; USB-C features and devices are not required to support any specific Alternate Mode. A number of audio and video modes are supported, setting up the connector to become a replacement for the and the HDMI cable. Cunningham, Andrew 9 January 2015. 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. Bohn, Dieter 4 February 2016. Examples of such active adapters include external and DACs that do not require special drivers, and USB-C to 3. Opam, Kwame 5 November 2015. 0 lanes and the configuration channel lane, so USB 2. from onwards works with USB 3. This is much faster than any other sort of USB connector. 1 cables are considered full-featured USB-C cables. Modes [ ] Audio Adapter Accessory Mode [ ] A device with a USB-C port may support analog headsets through an audio adapter with a 3. x uplinks in order to allow operation of both type devices connected to it. 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. 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. Overview [ ] USB-C cables interconnect hosts and devices, replacing various other electrical cables and connectors, including and , , , and. In addition to the default power options, Type-C devices can be fully compatible with the specifications. 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. Using these cables would have a potential consequence of damaging devices that they are connected to. 3 14 July 2017 , Revision History, page 14. 4 was published 2019-03-29• 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. The connector is rated to deliver and receive up to 100W of power, making it suitable to charge laptops and more. You can see what type you have by checking your device's manual, or contacting the manufacturer. Alternate Mode does not employ USB 2. 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. 1 and Thunderbolt specced connectors, offering up to 4K 60Hz 24-bit HDR playback, a maximum 8K resolution, and multi-channel audio. 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. Things do get a little complicated here though, as there are multiple different standards and protocols that can be used to power USB devices. Rev 2. 0 was published by the USB-IF and was finalized in August 2014. 0 cables, as it still features the pins used for these traditional data protocols. An additional low band bidirectional channel other than SBU may share that CC pin as well. The USB Type-C controllers support autonomous and accessory detection, advanced cable solutions, USB-C audio in addition to meeting compliance standards. The bottom line is that USB Type-C devices should enable faster data transfers and charge times than previous models. 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. 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• Related USB-IF specifications [ ] USB Type-C Locking Connector Specification [ ] The USB Type-C Locking Connector Specification was published 2016-03-09. 1 was published 2021-05-25 - Extended Power Range - 48 - 5 - 240 Adoption as IEC specification:• IEC 62680-1-3:2018 2018-05-24, edition 3. Billboard messages can be used to identify incompatible connections made by users. 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. When an active set of USB-C headphones or adapter is used, digital audio is sent through the USB-C port. However, how fast it works depends on what you're connecting it to. 1, USB-C, alternate modes, billboard device class, power delivery and USB Dual-Role. x connection is active, but devices like hubs open simultaneous 2. 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. Furthermore, dual-role devices that implement may independently and dynamically swap data and power roles using the Data Role Swap or Power Role Swap processes. 3 was published 2017-07-14• For dual-lane data transfers, all four differential pairs are in use. USB-C devices may optionally provide or consume bus power currents of 1. 0: USB 4 supports DisplayPort 2. V CONN must not traverse end-to-end through the cable. The micro-USB port came along with USB 2. On plug insertions, this will pull down both CC and VCONN in the plug CC1 and CC2 in the receptacle. On the other hand, when a passive set of USB-C headphones or adapter is used, analog audio is sent through the USB-C port. The USB Type-C Specification 1. 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. Rev 1. These cables are marked with a Thunderbolt logo on both ends. And the main connector style, called USB-A, is infamously flawed. 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. 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. Conversion by adapter Passthrough Compatibility with other fast charging technology [ ] In 2016, Benson Leung, an engineer at Google, pointed out that 2. Leswing, Kif 5 November 2015. I keep hearing USB C elsewhere, which is it? Data speeds and power This new pin layout has some implications for both data transfer speeds and power delivery. 1 can be transmitted simultaneously when the video signal bandwidth requires two or fewer lanes. A specific USB-C mode may also be entered, where 5 V at either 1. While optional, orientation detection is required if USB Power Delivery communication is to remain functional. By default, a USB-C cable plugged into a USB 3. 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. Passive adapters without a built-in DAC are only compatible with devices that output analog audio, adhering to the Audio Adapter Accessory Mode specification. To overcome these issues, USB Type-C port protection must be used between USB-C connector and USB-C Power Delivery controller. 2 was published 2016-03-25• 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. The conversion by the DAC and amplifier is done inside of the headphones or adapter, instead of on the phone. 1 3 April 2015 , page 60, table 3—13, note 1. Different devices have different types of USB ports. 1 device to a USB-C host, use of Rd on the CC pins is required, as the source host will not supply V BUS until a connection is detected through the CC pins. 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"• PD cables can charge laptops and other high-wattage devices, something impossible for the older USB standards. Here's what you should know about , the best take on the technology in years. The conversion by the DAC and amplifier is done on the phone; the headphones or adapter simply passthrough the signal. USB Type-C Port Controller Interface Specification [ ] The USB Type-C Port Controller Interface Specification was published 2017-10-01. 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. USB-C receptacle pin usage in different modes [ ] The diagrams below depict the pins of a USB-C socket in different use cases. When two such devices are connected, the roles are randomly assigned but a swap can be commanded from either end, although there are optional path and role detection methods that would allow devices to select a preference for a specific role. It provides user readable strings with product description and user support information. List of Alternate Mode partner specifications Logo Name Date Protocol Published in September 2014 , Announced in November 2014 1. In short: USB-C cables far outpace other types of USB cables. Alternate Mode hosts and sinks can be connected with either regular full-featured USB-C cables, or with converter cables or adapters: USB 3. Burke, Steve 25 March 2019. IEC 62680-1-4:2018 2018-04-10 "Universal Serial Bus interfaces for data and power - Part 1-4: Common components - USB Type-C Authentication Specification" USB 2. These are generally split into three types: USB 3.。 。 。

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