Cypress Semiconductor Corp. now offers a small package option for its EZ-USB HX3 USB 3.0 hub controller. The 6 mm x 6 mm ball grid array (BGA) package saves board space for Ultrabook devices, tablets, portable port replicators, and other mobile and consumer devices, adding to the HX3 controller's feature set that includes robust interoperability, extensive charging support, and full configurability.
The EZ-USB HX3 USB 3.0 hub controller offers full configurability via I2C EEPROM, I2C Slave and GPIO options, allowing designers to configure PHY drive strength, the number of downstream ports, power switch polarity, LED indicators and more. HX3 offers a Ghost Charging feature for charging of devices without a host, and it also supports the USB-IF Battery Charging v1.2 specification and charging of Apple devices. The company claims that the HX3 is the first SuperSpeed USB (USB 3.0) hub controller to offer an Accessory Charger Adaptor Dock (ACA-Dock) feature, which enables upstream charging for portable devices with a USB On-The-Go (OTG) host.
The controller's Shared Link feature enables up to eight downstream ports, allowing products such as docking stations and desktop monitors to connect with more USB peripherals using a single four port hub. HX3 is highly interoperable and has been thoroughly tested against over 400 USB peripherals, including popular consumer electronics, PC peripherals, HDDs and SSDs, and legacy devices.
The EZ-USB HX3 hub controller's on-chip USB 2.0 and SuperSpeed PHYs are each configurable, which helps to preserve signal integrity when driving long PCB traces. Its High-speed slope, Transmit Amplitude, and De-emphasis parameters are adjustable from a Graphical User Interface on a PC. HX3 consumes only 40 mW in standby mode and 735 mW with all ports in operation at SuperSpeed data rates–50% less than competing solutions.
Cypress is now sampling three versions of the EZ-USB HX3 USB 3.0 hub controller in the new BGA package: the CYUSB3328 4-port hub with Shared Link and GPIO interface, the CYUSB3314 4-port hub with individual port power control, and the CYUSB3304 4-port hub with ganged port power control.
Three EZ-USB HX3 Development Kits are available for customer evaluation: the full-featured CY4613 with the CYUSB3328 controller, the versatile CY4603 with the CYUSB3314 controller, and the low-BOM CY4609 with the CYUSB3304 controller. These kits integrate the required external components and come with the Blaster Plus software utility for Windows, which is used to change the configuration parameters of the HX3.