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Analog signals use the USB2.0 differential pairs (Dp and Dn for Right and Left) and the two side-band use pairs for Mic and GND. The presence of the audio accessory is signaled through the configuration channel and V CONN.
This is a very common scenario and a lot simpler to understand and get working than a direct USB-C connection - ironically. MHL Alternate Mode reference design for superMHL over USB Type-C". AnandTech.com. 2016-03-15. Archived from the original on 2017-06-04 . Retrieved 2015-06-18. a b "USB Type-C Cable and Connector Specification Revision 1.4, March 29, 2019" (PDF). Archived (PDF) from the original on 2020-03-20 . Retrieved 2020-03-20. For those of us who game, you might be wondering what’s the best cable to use to achieve a 144hz refresh rate. There are various cables you can use, but you should pay close attention to the version of your output port and that of your monitor. Porter, Jon (2022-10-04). "When will the iPhone be forced to use USB-C?". The Verge. The Verge . Retrieved 2022-10-06.DisplayPort 1-1.1a is able to output 144Hz at 1080p, while 1.2-1.2a can output 1440p at 144Hz, 1.3 outputs up to 120Hz at 4K, and 1.4 can output 144Hz at 4K using Display Stream Compression (DSC). More often than not, if you’re connecting something to a television, HDMI will be your best, and likely only, bet. Most PC monitors will also include an HDMI input. The good news, where it comes to 1.4 versus 2, is that you don’t need to rush out and buy new cables. To take advantage of the 2.0 specyou just need both devices on each end of the cable to be 2-compatible. Any HDMI cable will do, and we’ve already seen that there’s no difference in HDMI cable quality. USB Power Delivery uses one of CC1, CC2 pins for power negotiation between source device and sink device, up to 20V at 5A. 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 intact.
In single-lane mode, only the differential pairs closest to the CC pin are used for data transmission. For dual-lane data transfers, all four differential pairs are in use. Ngo, Dong. "USB Type-C: One cable to connect them all". CNET. Archived from the original on 2017-05-11 . Retrieved 2015-06-18. Most motherboards and dedicated graphics cards will have multiple outputs. You can use a combination of these to output to multiple monitors. So if you have HDMI and DVI outputs, connect one monitor using HDMI and the other using DVI. As mentioned above, if you’re using DisplayPort and your graphics card or device supports Multi-Stream Transport, you can daisy-chain DisplayPort and USB-C monitors, too. Full-featured USB-C cables that implement USB3.1 Gen2 can provide 10 Gbit/s (full duplex) signalling rate. They are marked with a SuperSpeed USB 10Gbps (previously marketed as SuperSpeed+) logo. There are also cables which can support only USB2.0 with a nominal data rate of 480 Mbit/s (with maximal effective data rate of ~40MB/s). The USB Implementers Forum certifies valid cables so they can be marked accordingly and users can distinguish them from non-compliant products. [12] Hosts and peripheral devices [ edit ]
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Plug insertions detection is performed by the TRRS plug's physical plug detection switch. On plug insertions, this will pull down both CC and VCONN in the plug (CC1 and CC2 in the receptacle). This resistance must be less than 800ohms which is the minimum "Ra" resistance specified in the USB Type-C specification). This is essentially a direct connection to USB digital ground.
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