Let's talk about the origin of the type-c interface first: the USB-IF organization launched the USB Type-C port in 2015 (which can also be written as a USB-C port), which is an epoch-making change, also known as the Type-C element at that time. year. Later USB 3.1, USB 3.2 and USB4 were gradually introduced.
After 20 years, from USB-A to USB-B to USB-C today, the era of unifying various device interfaces is finally coming. As a new interface, type-c supports positive and negative plugging and has more pins (24), and has now become the mainstream. Then some devices only have a type-c interface. For example, a laptop with a type-c interface wants to connect to a speaker, a mouse, a keyboard, etc., and the interface is not enough. At this time, a docking station with a type-c interface is needed. solve this problem.
Dock, also known as docking station, is popular because of the limited number of USB or video interfaces in notebook computers, and users want to expand more or more types of interfaces to meet diverse application needs. There are many application scenarios for the type-c interface docking station. It can not only be connected to laptops and mobile phones, but also used to connect to Switch game consoles and tablets as screen projection.
With the application of Thunderbolt 4, it is difficult for the HUB driver chip to have a chip that can match the transmission rate of Thunderbolt 4, but in December 2021 last year. VIA is the first to release the VL830 USB4 terminal device conversion chip. The VL830 offers both USB and DisplayPort functionality, allowing full performance operation when used with Thunderbolt4 or USB4 systems. The biggest feature of USB4 is that the transmission speed is faster, and it supports more transmission protocols. It adopts a C-type interface, is compatible with Thunderbolt 3, and supports 4K@60fps transmission. The popularity of USB4 will have a great impact on the form of terminal equipment, the interface will be less and less, and the form will be highly unified, that is, the compatibility will be better.
Weifeng USB4 conversion chip has a USB4 or Thunderbolt 4 upstream interface, with 5 downstream interfaces and 1 DP interface. The DP interface supports 32.4Gbit/s bandwidth and supports up to 8K/60Hz HDR video output. The hardware supports the security function of digitally signed firmware, supports PWM to drive LED indicators, and supports firmware upgrade via USB interface or I2C bus. The USB port supports BC1.2, Apple2.4A, Samsung and other charging protocols, which can charge connected devices. Built-in USB3.2 hub, supports four USB3.2 and one USB2.0 interface, and also supports one DP1.4a interface. The DP interface can also be converted into an HDMI interface through other adapter chips, and with Weifeng VL103, VL105 and other chips for PD support, it can realize the USB-C port power supply, USB interface and display interface expansion of the notebook computer.