1. Cypress HX3 vs. Via Labs VL812 Docking Station Applications
Bringing a full-featured solution to the SuperSpeed hub market

2. Consumer Products Demand Reliability
Success of consumer products is driven by user experience
Growth in internet retailers, especially for tech products
User reviews readily available to consumers
Even one negative review can ward off potential customers
User experience is driven by reliability
Product must function properly right out of the box and over the course of its lifetime
Failure to do so guarantees a negative consumer review
Reliability in a docking station is driven by the USB hub
USB hub is a critical component in the docking station system
A failure in the hub brings down the entire system
Your USB hub must be reliable to maximize docking station user experience

3. VL812 Overview
VL812 is a third-generation, 4 port USB3.0 one-chip hub controller featuring:
5.0 Gbps maximum data transfer rate
USB3.0 low power states support
Charging downstream ports
Integrated 5V DC-DC switching regulator
In-house USB PHY
VLI
VL812
VL812

4. Challenges Using VL812 1. Design requires more than 4 downstream ports
Additional ports require more VL812 chips per board
Higher # of ICs increases the Points of Failure (PoF) which reduces the system reliability
2. Design requires full-feature docking station
Downstream charging when the host is disconnected
Upstream port charging in mobile docking stations
3. Expensive end product requires reliable ICs
Failure of inexpensive hub leads to failure of expensive docking station
Via Labs is a young, Taiwanese company with limited experience (founded in July, 2008)
Laptop Docking Station
VL812 does not allow downstream devices to charge when laptop is undocked
Have you faced any other challenges?

5. The Solution You Need A reliable and cost-effective solution that
Supports more than 4 down stream devices
Offers more features than the competition
Comes with a reputation for high quality and support
HX3 is the solution you need
Shared link feature allows a USB2.0 and a USB3.0 device to share one port, allowing up to 8 total downstream devices
Ghost charging and accessory charger adapter features enable HX3 to be part of a full-feature docking station solution
HX3 is backed by Cypress’ reputation for quality and reliability, proven by over 1 billion USB shipments
HX3 enables a full-featured and reliable docking station solution

6. VL812 vs. HX3 Feature VL812 CYUSBH11xx # of USB Ports 4 Die Size
9 x 9 x 0.85 mm
10 x 10 x 1 mm
USB Battery Charging v1.2 Compliant
Yes
Shared Link No
Ghost Charging
Accessory Charger Adapter
Apple Device Charging
Fast Charge
EEPROM Configurability Support
SPI
I2C
Device Package
76 QFN
88 QFN
The indicated parameters are in the perceived order of importance

7. HX3 Design Win Example – Laptop Docking Station
HX3 Value
Block Diagram
Design Challenges
Reduce the number of required hubs per board
Improve system reliability
Integrate more features into a high end docking station
HX3 Solution
Eliminates need for second hub through use of shared link
feature which reduces BOM cost
Reduces Points of Failure (PoF) by eliminating need for
second hub
Adds value by implementing features not present in other
systems (ghost charge, accessory charger adapter)
Docking Station
Upstream Port
Shared Link Implemented
USB to Ethernet
Downstream Port 1
Downstream Port 3
USB to Audio
HX3 USB3.0 Hub
USB to SD/MMC
Downstream Port 2
Downstream Port 4
Shared Link Implemented
Suggested Collateral
USB to Video
Datasheet: HX3 USB 3.0 Hub – Preliminary
App Notes: USB Compliance Testing Overview
Input Voltage
Laptop Docking Station
HX3 enables the creation of a full-feature docking station
Competition
Via Labs VL812, Genesys Logic GL3520, TI TUSB8040