Design win; Cypress’ USB-C silicon in HDMI Alternate Mode cable

February 17, 2017 // By Graham Prophet
Taiwan-based cable company ELKA International has brought to market the first HDMI Alternate Mode (alt mode) cable. The cable allows smartphones, digital cameras, set-top boxes and other HDMI-enabled sources with USB-C connectors to connect directly to displays with HDMI ports, including HD and 4K televisions.

The Taiwanese company employed Cypress Semiconductors' EZ-PD CCG3 USB-C controller, using its programmability to streamline firmware development and provide upgradeability.

 

All HD and 4K televisions include HDMI connections, but previously connecting USB-C enabled source devices required adapters or converters that do not enable all native HDMI features. With the Cypress HDMI alt mode solution, source device manufacturers can utilize native HDMI features via USB-C connectors. Cypress developed the HDMI alt mode for USB-C specifications in conjunction with Panasonic and demonstrated the industry’s first solution at the recent Consumer Electronics Show (CES2017). Cypress’ EZ-PD controllers support HDMI alt mode, along with USB Type-C standard support for audio, video and data protocols, as well as USB Power Delivery (PD) for fast charging. More information on Cypress’s USB-C and USB PD solutions is available at www.cypress.com/Type-C/HDMI-Alt-Mode

 

The EZ-PD CCG3 controller integrates independent gate drivers for external provider and consumer power FETs that deliver up to 100W over USB-C cables. The integration of a high-voltage regulator and analogue blocks enables 2.7-V to 21.5-V operation, allowing CCG3 to be powered directly from the VBus. With integrated overvoltage and overcurrent circuitry and programmable detection thresholds, the controller protects systems against power overloads and other faulty operating conditions. The CCG3 controller includes an ARM Cortex-M0 processor, two 64 kB flash memory banks for fail-safe firmware updates and an integrated Crypto Engine for firmware update authentication. CCG3 also incorporates an analogue switch for non-USB signals, such as HDMI control signals, along with four serial communication blocks and a USB full-speed controller for USB Billboard functionality.

 

Cypress; http://www.cypress.com/ccg3