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Types and applications of USB cable shielding materials

An important role of USB cable is to transmit data signals, but all around us there can be all kinds of messy interfering electromagnetic signals. If these interfering signals enter the inner conductor of the USB cable and superimpose on the originally transmitted signal

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Principle of shielded twisted pair cable and Connection

Conductor outside the conductor wrapped wire called shielded wire, wrapped conductor called the shield, generally woven copper mesh or copper foil (aluminum foil), the shield needs to be grounded, foreign interference signals can be imported into the earth by the layer.

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Apple new patents

Apple iPhone new patent approved: volume keys and other solid-state buttons

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Electrical risks of USB-C

However, there are some considerations to keep in mind. In order to meet the market demand for lightweight devices, the electrical contacts of the USB-C interface are closely spaced, with the CC (control) and high speed differential signal pins located in close proximity to the VBUS pins of the USB Type-C connector. If conductive debris falls into the receptacle, improperly plugs in, or severely impacts a wire connector or device, it may cause a short circuit to the adjacent link.

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Application of USB-C Alternate Mode

Alternate Mode is a mode that USB-C supports in addition to traditional USB data transfer - such as image data (DisplayPort) or Thunderbolt, etc. The USB Association issues a unique 16-bit USB standard code (SID) for each standard Alternate Mode The USB Association issues a unique 16-bit USB standard code (SID) for communication between master and slave devices for Alternate Mode support or not.

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Misunderstandings about USB-C

This fall Apple's new iPhone 15 series phones, will switch to the use of USB-C interface. This makes the USB Type-C cable will appear in our daily life more often. But we do not necessarily have a clear understanding of USB-C, the following we put about USB-C common misconceptions to do some correction.

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