USB Type-C - USB 3.1

Seminar Topic on USB Type-C - USB 3.1

Abstract

The Universal Serial Bus (USB) is an industry standard developed by the USB Implementers Forum (USB-IF), which defines standard interfaces between computers and peripherals.USB Type-C is a specification for a 24-pin reversible-plug connector for USB devices and USB cabling. It was published by the USB Implementers Forum.USB Type-C and USB Power Delivery are exciting new standards that allow customers to use a single flip-able cable to connect personal electronics. Texas Instruments helps bring USB Type-C and USB Power Delivery benefits to market faster with the most complete host and peripheral solutions and the industry’s best support for fast and easy implementation.

USB History:

USB is implemented in several forms today:

• USB 2.0 (also known as High Speed USB) achieves 480 Mb/s data rate while retaining backwards compatibility to USB 1.1 devices.
• USB 3.1 Gen 1 (also known as SuperSpeed USB) achieves 5 Gb/s data rate and implements a dual-bus architecture. One bus is a USB 2.0 bus and the other is a SuperSpeed bus.
• USB 3.1 Gen 2 (also known as SuperSpeedPlus USB) achieves 10 Gb/s data rate.
• USB-C cable and connector enables smaller product designs, enhances usability by providing reversible plug orientation and direction, and establishes a power delivery and charging infrastructure. Multiple serial standards including USB, Thunderbolt, DisplayPort and MHL, have announced support for the Type-C connector.

About USB Type - C

Physically, the Type-C port and connector is about the same size as that of the Micro-B USB mentioned above. A Type-C port measure just 8.4mm by 2.6mm. This means it's small enough to work for even the smallest peripheral devices. With Type-C, a USB cable's both ends will be the same, allowing for reversible plug orientation. You also don't need to worry about plugging it in upside down.

Set to be widely available starting 2015, Type-C USB will support USB 3.1 with the top speed of 10Gbps and has much high power output of up to 20V(100W) and 5A. Considering most 15-inch notebook computers require just around 60W of power, this means in the future laptop computers can be charged the way tablets and smartphones are now, via their little USB port. In fact Apple's latest 12-inch Macbook is the first notebook that incorporates a Type-C USB as its power port.

Going forwards, USB-C will enable storage vendors to make bus-powered (no separate power adapter required) external hard drives of much larger capacity, since it provides enough power to run one or even multiple desktop hard drives.

Type-C USB also allows for bi-directional power, so apart from charging the peripheral device, when applicable, a peripheral device could also charge a host device. All this means you can do away with an array of proprietary power adapters and USB cables, and move to a single robust and tiny solution that works for all devices. Type-C USB will significantly cut down the a amount of wires currently needed to make devices work.

Why  USB Type-C ?

Enhanced power delivery capabilities would allow this new technology to support traditional mobile device charging, but would also allow a laptop to power a computer monitor or a computer monitor with a power supply to charge a laptop through its USB C connector.

Native support of DisplayPort video and four channel audio will allow your device to connect to a computer monitor, HDTV, surround sound system and headphones — it will even support microphone connections — all over the same small, robust, powerful connection.

Transfer rates up to 10Gbits/s will make USB 3.1 the ideal solution for transferring large amounts of data, such as HD video for editing, Blu-ray™ authoring, or high resolution photos for editing or storage.

Backwards Compatability

The physical USB Type-C connector isn’t backwards compatible, but the underlying USB standard is. You can’t plug older USB devices into a modern, tiny USB Type-C port, nor can you connect a USB Type-C connector into an older, larger USB port. But that doesn’t mean you have to discard all your old peripherals. USB 3.1 is still backwards-compatible with older versions of USB, so you just need a physical adapter with a USB Type-C connector on one and and a larger, older-style USB port on the other. You can then plug your older devices directly into a USB Type-C port.

Realistically, many computers will have both USB Type-C ports and larger USB Type-A ports for the immediate future — like Google’s Chromebook Pixel. You’ll be able to slowly transition from your old devices, getting new peripherals with USB Type-C connectors. Even if you get a computer with only USB Type-C ports, like Apple’s new MacBook, adapters and hubs will fill the gap.

Referred link:

http://www.cnet.com/news/usb-type-c-one-cable-to-connect-them-all
http://www.cablestogo.com/tech/usb-3-1

http://www.howtogeek.com/211843/usb-type-c-explained-what-it-is-and-why-youll-want-it/
https://en.wikipedia.org/wiki/USB_Type-C