A1 - USB3.0 Super Speed ​​Docking Station in VL812 Atmosphere

Video link: https://www.bilibili.com/video/BV1E14y1x7mL

Introduction:

Use VL812 as master control

USB3 data and power supply are on the same port, using TYPE-B female socket

The input uses standard USB5V voltage (limited range: 4.5-5.5V)

Four USB3 outputs use TYPE-A female socket

Close-up of input and output sockets:

Speed ​​test:

The test speed is up to 410M long-distance running

Features of this docking station:

1: Low welding difficulty without losing versatility

       The first USB3 docking station on this platform uses TYPE-C 24P port + VL160 to realize C port input, which has strong versatility, but

Increased welding difficulty,

       The second USB3 docking station on this platform uses the external soldering wire input of the pad, which is more convenient and does not require spare wires, but it may

In some scenarios, the cable length is not enough or the size causes inconvenience.

       As the third USB3 docking station on this platform, it can reduce the difficulty of welding and at the same time have a certain degree of freedom.

Of course, the disadvantage is that more people have USB-A to USB-C cables or CC cables than USB-A to USB-B cables, which require additional

Buy

2: LED light insertion detection

The corresponding LED lights up when the device is plugged in, showing that the device is being used (it seems useless, but the high-level indication can be used with other expansions)

After the ejection operation is performed, the LED will automatically turn off to indicate that the device has been ejected.

Other additional instructions for the docking station:

      The wiring uses the 100R impedance on the Lichuang Forum, and the line width and line spacing are all 8mil.

     Using JLC7628 structure, the inner layer does not need to be specially designated, and the USB3 signals are all on the outer layer!

      VL812 does not need to rely on external firmware to run. Firmware is not required and can be run directly.

     The board is 4 layers, but you can sample it for free

      The cost of this docking station cannot beat the finished product on Taobao, which costs about 30-40 yuan (but after accumulating this valuable wiring experience,

Other styles of USB port layouts can be designed)

Close-up of this docking station:

In fact, this module has been verified for several versions, but it was frequently blocked because I did not read the information book carefully.

Now I have fully verified this function with the help of my friends, and will conduct research on higher-speed USB docking stations in the future.

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