Why The Type-C Interface Has Not Yet Entered The Consumer Electronics Market?

Today's  consumer electronics market standards, the standard on the transmission  interface has never stopped the war, but in 2015 Apple, Google and  Microsoft and other world-renowned manufacturers have been pushing USB  Type-C new products, by virtue of a more slim, The USB Type-C is popular with manufacturers and consumers, with  features such as flip-flop, higher transfer speeds and bi-directional  cables.


Macbook USB Type-C interface

The  first use of USB Type-C is November 2011 Nokia launched N1 tablet, but  really let everyone's attention is later released Apple's Macbook, Apple  Macbook thin body design, USB Type-C slim (2.5mm )  The size of Jujie Wei, but relative to the small size of the market on  the USB Type-C more expectations in fact can be positive and negative  plug, high-speed data transmission, power charging and audio and video  data transmission. [USB-C interface, the four major advantages]

USB Type-C Benefits

1. Support the positive and negative sides can be inserted into the "positive and negative plug" function;

2. The maximum data transmission speed of 10Gbps, USB3.1 is the standard, compatible with USB2.0 standard;

3. The standard specification cable with Type-C connector is available  via 3A current and supports USBPD beyond the existing USB power supply,  providing up to 100W of power;

4. DisplayPort alternate mode, supports up to 4K ultra-high definition (UHD) or even 8K resolution.

High-speed transmission era

On  the transmission speed, USB3.1 redefine Gen1 (5Gbps) and Gen2 (10Gbps),  that is, the future to see the application of USB3.1 products, we must  pay attention to its specifications described Gen1 or Gen2, past USB  Power Delivery1.0 In  the charging specification, it is determined that the USB Power  Delivery 2.0 can not be compatible with the design of the FSK signal  (FSK over Vbus) at the Vbus signal line. The USB PD2.0 is used to  transfer the BMC through the Type-C CC line Signal (BMC over Type-C CC).


Type-C

In  fact, Type-C is only one of the specifications of the connector, the  other common common norms include: master and device commonly used  Type-A, limited device used Type-B ;, USB Type-C specifications to  develop At  the same time, due to take into account a variety of different  technical areas, and the addition of functional extensions, such as  PD2.0 and Alternate Modes (Alt-Mode), by the way to support this is to  improve the connector, USB Type-C device, not necessarily equal to USB3.1 transmission speed.

At  present the application of USB in the mobile phone has been quite  popular, due to the old USB2.0, only 4 or 5 pins (depending on the  connector version), USB3.0 specifications as a fundamental, add 5 extra The pin. While  the full function of the USB Type-C has 24 pins: 4 pairs of  differential signals is the basis for high-speed transmission; the other  4 pairs of power and grounding pin to achieve the connector allows more  than 3A current specifications; 4 in the socket The  side pins are reserved for USB 2.0 data transfer, but only 2 are used  on the plug, while the other 2 pins are reserved for the next  application of Alt-Mode. One pin is defined as CC or configured channel.  In addition, also defined the Vconn pin, which is independent of the  Vbus power pin, can be powered to the transmission line or other  equipment.

The  newly designed USB Type-C connector, interface size 8.4mm x 2.6mm,  slightly larger than the average micro-USB phone, it is not like the  past Type-A or Type-B connector has a directional limit, regardless Supports 5V / 3A output (15W); Supports higher charge power (65 ~ 100W) output with USB PD add-on chip.

Application potential outbreak

USB3.1  New Type-C for video transmission (support 4K UHD picture output) has  improved significantly, the future mobile phones, flat, notebook  computers, can be a Type-C data cable, get data, video and power  connection input /  Output applications, market research HIS Technology's report predicts  that USB Type-C's largest market will initially focus on smart phones,  tablets and laptops, but the future will be more widely used, such as  television and set-top boxes worth the wait , In addition to cameras, DVD, home game consoles, etc. are still using USB devices, the future can be replaced with USB Type-C.


Type-C phone interface

From  2015 onwards, USB Type-C penetration has increased year by year, the  global USB Type-C mobile phone shipments in 2015 has approached 4.4  million units, growing very fast, of which more than 2.6 million  mainland China accounted for 60 %,  But although the Chinese mobile phone in the USB Type-C mobile phone  shipments occupy the mainstream position, but not the full function of  the USB Type-C, USB Type-C four functional modules positive and negative  plug, video transmission, data transmission and Charging, the current Chinese market in the cost and technical  considerations, often only to support the most simple positive and  negative plug function, so still not correct.

At  present the use of USB Type-C, interested in China to invest and  develop the project manufacturers, it must meet the current market  demand, the Type-C's four major functions are modular design, so that  USB Type-C use Manufacturers  of self-selected functional modules, but such a filter-type functional  module combination to a certain extent will cause different USB Type-C  product compatibility issues, so USB Type-C manufacturers must also  provide the relevant test services and Solution,  so that different manufacturers produced USB Type-C equipment can be  compatible with each other to use, so as to make USB Type-C faster  access to the consumer electronics market, a main force to become the  USB interface.