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By PURPLELEC | 20 December 2023 | 0 Comments

Introduction to USB3.0 hub expansion dock chip VL8 series

  VL813 VL817 VL820 is a USB 3.0 hub chip. VL813 can be converted into 4 ports. It is a fully integrated single-chip solution. It is the third generation that emphasizes low power consumption design and the industry's first integrated 5V DC-DC switching regulator. A USB 3.0 hub chip, the vl813 offers high performance, high power efficiency, and reduces overall system BOM, making it an ideal choice for mobile and other low-power applications. It is an upgraded version of VL813 and VL812 Pin to Pin, with high integration, omitting SPI-Flash, DC-DC, better quality, lower cost, fast and stable.
  VL813: 4-port USB 3.0 distributed controller is a third-generation fully integrated single-chip solution that emphasizes low-power design and the industry's first integrated 5V DC-DC switching regulator. The VL813 delivers high performance, high power efficiency, and reduced overall system BOM, making it ideal for mobile and other low-power applications.
  VL817: Modern USB 3.1 Gen 1 hub controller with optimized cost structure and full compliance with USB 3.1 Gen 1 specifications, including ecn and compliance testing updated to January 2017. The VL817 is available in 2-port and 4-port configurations and features an integrated voltage regulator, a new low-power design, and full USB charging support. The VL817 supports any combination of SuperSpeed (5Gbps), High Speed (480Mbps), Full Speed (12Mbps) and Low Speed (1.5Mbps) devices, and the integrated USB 2.0 hub's multi-transaction translator feature provides higher performance when multiple When two Full Speed devices are used at the same time. The integrated 5V DC-DC switching regulator allows the VL817 to be powered directly from the 5V USB VBus, providing high power efficiency while reducing BOM cost.
  VL820: USB 3.1 2nd generation hub controller, which is characterized by high integration and application-specific design. VL820 has 1 upstream interface and 4 downstream interfaces, all supporting 10Gbps USB 3.1 Gen 2 operation. Downstream ports can support any combination of SuperSpeed Plus (10Gbps), SuperSpeed (5Gbps), High Speed (480Mbps), Full Speed (12Mbps) and Low Speed (1.5Mbps) devices. The VL820 integrated USB 2.0 hub features multiple transaction translators, providing increased bandwidth and performance when multiple full-speed devices are used simultaneously.

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