At 2:00 p.m. on October 17, 2013, the charging head network hosted 2023USB4High speed transmission technologyworkshop。Among them, the director of the USB technology department of Tyle Terminal Laboratory《USB-CEcology and Development.
USB Type-C profile features mainly include mechanical specifications and functional capabilities.Type-C mechanical specification has 24 full needles, 8.3 mm long and 2.5 mm wide, which can be recycled for 10000 times;It supports forward and backward insertion, and the connector can be used randomly;USB4/3.2/2.0 wire can be used with the old adapter;Improved EMI/RFI mitigation function;Current rating, 3A for standard wire, 5A for connector.Type-C function capability, USB2.0: LS/FS/HS; USB3.2: first generation 5Gbps/second generation 10Gbps;USB4: the second generation 10Gbps/the third generation 20Gbps × 2;Enable the electronic marking data cable through USB PD;Standby mode function enabled via USB PD;Enhanced power options: extended 5V current range plus USB PD.
USB Type-C has a unified interface, small size, long life, reversible, symmetrical cable, covering various use scenarios, and meeting various performance requirements.The main usage scenarios of Type-C include power transmission, audio, video and data transmission. It is easy to go from low-power power supply to 8K video transmission.
The USB Type-C standard conforms to the characteristics of high-speed, expansion and portability.High speed: support the maximum two-way transmission rate of 80Gbps to meet various data transmission and image transmission requirements.Expansion: the maximum 240W power transmission capacity, video transmission and other function expansion.Portable: small, convenient, reliable and unified.
The ecosystem of USB Type-C is complex and faces many challenges such as multiple scenarios, multiple devices, multiple problems and multiple opportunities.
The technical features of USB4 mainly include two transmission channels, which support a maximum transmission rate of 40Gbps (20Gbps × 2);Support for multiple data and display protocols (DP/PCI e) to maximize the use of transmission broadband;Backward compatible with USB3.2, USB2.0 and Thunderbolt 3.
USB4 V2 technical features can use the new physical layer architecture coding based on PAM3 signal to realize 80Gbps data transmission through the existing 40Gbps USB Type-C passive cable and the newly defined 80Gbps USB Type-C active cable.For some applications, such as driving a high-performance display based on USB4, the USB Type-C signal interface can reach 120Gbps in one direction and maintain 40Gbps in the other direction.
The core of the USB4 architecture is the USB4 router and pipeline. The USB4 port provides interconnection services between routers, and the protocol adapter provides protocol adaptation and convergence.USB4 routers can communicate through USB4 interfaces with USB, DP and PCle data pipes.
USB4 interface plays an important role in USB3.2 pipeline, DP pipeline and PCIe pipeline communication.
From USB1.1 in 1998 to USB4 in 2019, the performance has doubled several times, and the functional complexity has also increased.
The technical specifications of USB4 include USB4 v1, Type-C v2 and PD3.0 v2 in August 2019 and USB4 v2 in October 2022,Type-C v2.2,PD3.1 v1.6。The test specification has also been upgraded rapidly, and several USB4Gen3 connector TID, USB4Gen3 cable TID, USB4Gen3 chip TID products from several companies have come out.
EU Common Charger Certification
From September 23, 2019, the EU Common Charger launched a scheme to reduce electronic waste and unify the USB-C interface.On November 23, 2022, the (EU) 2022/2380 was launched, stipulating that 13 types of electronic equipment must meet the new regulations.By June 27, 2023, the required version will be upgraded. On September 13, the iPhone 15 series will be released, and the interface will be replaced with USB-C.In 2023, we will wait for the release of new EPS directives.
Because the charging interface specification of electronic equipment is not uniform, a large number of electronic waste and consumer dissatisfaction are brought, resulting in waste of electronic resources.The European Commission's proposal in 2019 will take important measures. The unified charging interface will increase convenience for consumers and help promote the green and digital transformation of the EU.The proposal proposes to make USB-C the standard charging interface for all electronic devices, including 13 types of devices such as smart phones, tablets, cameras, headphones, portable speakers and handheld video game consoles.The EU Radio Equipment Directive (RED) to be revised also proposes that chargers should be "untied" from equipment sales, and manufacturers will not be allowed to impose "unreasonable" restrictions on charging speed.
On December 7, 2022, OJ officially issued the revised directive Directive (EU) 2022/2380 on universal chargers to supplement the specific implementation requirements of 3.3 (a) of RED Directive 2014/53/EU on universal charging interfaces.On June 27, 2023, the European Union has approved the adoption of the 2022 version of IEC 62680-1-2 and - 1-3 standards.The related devices must use Type-C charging interface, and support the PD fast charging protocol of more than 15W. Consumers can choose to purchase non bundled devices.
The revised EU RED directive covers 13 types of wireless devices, including smart phones, tablet computers, digital cameras, headphones, handheld game consoles, portable speakers, e-books, keyboards, mice, portable navigation and laptops.The revised directive will be enforced in all EU member states from December 28, 2024, of which the requirements for notebook computer equipment will be enforced on April 28, 2026. New equipment entering the EU market after the mandatory date shall meet the requirements of the revised directive.
The instruction points out that all types of equipment shall be marked with the power range requirements for charging equipment in the user's manual. The equipment supporting fast charging shall be marked with PD fast charging "USB PD fast charging" and other supported fast charging agreements. The external package of the equipment shall be marked with whether it is equipped with a standard charger. Outsourced packaging and user's manual shall be marked with PD fast charging specifications. In addition, it shall be displayed next to the price tag when selling,The width of the sign shall not be less than 7 mm.
The change of the EU RED directive refers to the change of the USB-IF standard, and the corresponding EN IEC standard also changes.
EN IEC 62680-1-2: USB power transmission specification
A fast charging protocol based on CC channel in Type-C connector;The electric equipment and power supply equipment can negotiate and adjust the voltage, current and charging direction;The specification puts forward detailed requirements for electrical requirements, physical layer, protocol layer, system strategy, state machine and power rules.
EN IEC 62680-1-3: USB Type-C cable and connector specifications
Three topics are involved: Type-C connector, Type-C cable and Type-C protocol (function);Pin definition, mechanical structure requirements, size requirements, electrical performance requirements;Master slave, power supply role definition, power supply capability, relevant handshake protocol and state machine definition of Type-C device;The USB4 support and Active Cable are described and standardized in separate chapters.
Examples of common charger test contents, such as PD equipment, 62680-1-2PD compliance test, include preparation procedure, common inspection, lifting procedure and common procedure, physical layer specific test, protocol specific test, power characteristic test, extended power range test, fast role exchange test, USB4 test data reset.62680-1-3Type-C function test includes connection test, Try.SNK DRP test, all DRP tests, source capacity test, transmission capacity test and other tests.62680-1-3 Connector function test includes DC electrical, mechanical and environmental tests.
In order to cooperate with the common charger initiative, the EU is drafting a revised regulation based on the ErP regulation for the ecological design requirements of external power supply EPS, which is planned to be implemented simultaneously with the RED revised directive.It is required to improve interoperability, promote USB PD protocol, and improve information requirements to help consumers identify external power supplies/chargers suitable for their devices.
After unifying Type-C and PD, in the forecast of charger and cable shipments, the charger and USB cable shipments using USB Type-C interface will account for the vast majority of the market share.
Since the EU issued the revised directive on Common Charger on December 7, 2022, the laboratory has launched the reference test scheme at the first time, conducted in-depth discussion and research with several manufacturers and EU NB institutions, and assisted many enterprises in the exploration and verification.It has obtained CNAS approval of EN IEC 62680-1-2 and EN IEC 62680-1-3 detection capability.In collaboration with the US certification authority Timco, the company issued the first EU RED directive Common Charger certificate for domestic enterprises.
Relying on the concept of "self-improvement, you and I win together", Thayer Terminal Laboratory provides customers with high-quality service for terminal equipment testing.
Thayer Terminal Laboratory
China Thale Laboratory was established on September 21, 1981, formerly known as the China Telephone Reference Equivalent Testing Center, with the joint approval of the former General Administration of Standards and the former Ministry of Posts and Telecommunications of the People's Republic of China in (1981) YKZ No. 957.On January 20, 2000, with the joint approval of the former National Bureau of Quality and Technical Supervision and the Ministry of Information Industry of the People's Republic of China, it was agreed to change the name of China Telephone Reference Equivalent Testing Center to China Thayer Laboratories.
According to the development of the new situation and the needs of the internal management of the Institute, the Institute once again integrated the testing and measurement laboratories in 2013. In the process of the development of testing and measurement, the China Thale Laboratory has gradually become the representative and image of the laboratory community of the Institute, and has decided to upgrade the China Thale Laboratory and the Quality Inspection Center to the level of the InstituteSecond level laboratories such as terminals, unify the quality system and form a new organizational structure.The research institute adjusted the legal person affiliation of China Thale Laboratory and relevant quality inspection centers to their direct management through official documents, and defined the top management of the laboratory.
Since 2019, in order to meet the needs of development, the ICT Academy has officially identified the "Thayer Laboratory" brand as its unified brand in the field of inspection and testing, and has fully authorized all inspection and testing institutions under its management to use this brand in carrying out inspection, testing and measurement business, so as to establish a high-quality unified brand image in the industry.
Summary of charging head network
Thiel Terminal Laboratory described the market prospect of USB-C ecology through four aspects of USB Type-C technical characteristics, use scenarios, standards and ecological complexity.It also shows the importance of the development of USB4 technology by introducing the technical characteristics of USB4/USB4 V2, the USB4 architecture core composed of USB4 routers and pipes, the performance improvement and complexity growth brought about, and the development of USB technology/products.Finally, it summarizes the development of the EU Common Charger, the EU RED revision proposal, the EU RED revision directive, the revised draft of EPS chargers, the impact on the industry, the Common Charging certification trends and other contents, indicating the determination and confidence of the European market in the development of USB Type-C and USB4 technologies, as well as the impact on the global market.
Thayer Terminal Laboratory has obtained the CNAS recognition of EN IEC 62680-1-2 and EN IEC 62680-1-3 testing capability, and cooperated with the American certification agency Timco to issue the first European Union RED directive Common Charger certificate for domestic enterprises.Theil Terminal Laboratory can provide excellent certification services for domestic enterprises that want to develop their European business.