Description

VIA Lab’s VL211 is a USB 3.1 Gen1 Hub Controller, full compliance with USB 3.1 Gen1 specification including ECNs and Compliance Testing Updates to date. VL211 is offered in 4-port configurations: a single USB 3.1 and three USB 2.0 ports, and features integrated voltage regulators, new lower-power design, and comprehensive USB Charging support. VL211 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 Multiple Transaction Translators feature provides increased performance when multiple Full Speed devices are simultaneously used. The integrated 5V DC-DC switching regulator enables VL211 to be powered directly from 5V USB VBus, reducing BOM cost while offering high power efficiency.

Block Diagram

Key Features

• USB 3.1 Compliant
  - Compliant to Universal Serial Bus 3.1 Specification
  - Meets all USB 3.1 ECNs and Compliance Testing Updates to date.
  - Compliant to Universal Serial Bus 2.0 Specification
  USB 2.0 Hub Supports MTT
  - Supports Simultaneous Operation of Any Combination of SuperSpeed, High-Speed, Full-Speed, and Low-Speed Devices
  - Supports USB Power Saving Features such as Link Power Management, Ux States, Selective Suspend, and Function Suspend
  - In-house USB PHY employs advanced CMOS process for low power consumption
• Certification
  - Earned USB 3.1 Gen1 USB-IF certification TID# 330000073
• Integrated USB Devices
  - USB HID Class Device (Optional)
  Implemented as a USB 2.0 Virtual Device, Facilitates FW Update or Media Control Buttons
  Configurable Behavior – Always Present / Disabled
  - USB Billboard Class 1.1 Device (Optional)
  Implemented as a USB 2.0 Virtual Device
  Configurable Behavior – Expose When Necessary / Always Present / Disabled
• Integrated USB Devices
  - USB HID Class Device (Optional)
  Implemented as a USB 2.0 Virtual Device, Facilitates FW Update or Media Control Buttons
  Configurable Behavior – Always Present / Disabled
  - USB Billboard Class 1.1 Device (Optional)
  Implemented as a USB 2.0 Virtual Device
  Configurable Behavior – Expose When Necessary / Always Present / Disabled

• Full Sideband Signal Support
  - Supports both Individual and Ganged Mode Operation for All Ports
  - Supports PWM LED Status Lights
  - SPI Interface for Firmware. Firmware Upgradable over USB.
  - Management Interface for Specialized Applications
• Comprehensive USB Battery Charging Support
  - Supports USB Battery Charging Specification v1.2 (SDP, CDP, DCP)
  - Support for Vendor Specific Charging Modes eg. Apple 2.4A, Samsung, etc.
  - Supports YD/T 1591-2009
  - Supports Stand-Alone Charging when System is Suspend, Shut Down, or Disconnected
  - Any Combination of DFPs can be Configured to Support USB Battery Charging
• Power and Package
  - Requires 3.3V and 1.1V Inputs
  - 25MHz Xtal
  - Integrated Voltage Regulators Generate All Required Voltages from 5V Input
  5V to 1.1V Switching DC-DC Regulator
  5V to 3.3V LDO Regulator
  - QFN 48L green package (6x6x0.85 mm)
  - Pin Compatibility with VL210