Silicon/software package to build USB Type-C to DisplayPort cables

April 29, 2015 // By Graham Prophet
Cypress Semiconductor has assembled a complete silicon and software offering for USB Type-C to DisplayPort adapters (dongles).

The EZ-PD CCG1-based Type-C to DisplayPort Cable solution enables connectivity between a USB Type-C receptacle and a DisplayPort (DP) or Mini DisplayPort (mDP) receptacle, allowing emerging Type-C notebooks and monitors to be interoperable with older products.

The Cypress Type-C to DP solution includes USB Billboard Device Class, which allows the adapter to communicate status to a host that does not support DP. This uses Cypress’s EZ-PD CCG1 (CYPD1120) Type-C Port Controller to support DP as one of its Alternate Modes and the CY7C65210 Full-Speed USB 2.0 controller to support the USB Billboard Device Class. Cypress demonstrated that its Type-C to DP solution is interoperable with the Apple MacBook, the Google Chromebook Pixel, and multiple other systems, at the recently concluded VESA and USB-PD Interoperability events in Milpitas, California.

“The market demand for USB Type-C is ramping quickly, and this will necessitate a strong demand for adapters to connect with older notebooks, monitors and other peripherals,” said Ajay Srikrishna, Vice President of the USB product line at Cypress. “Our EZ-PD CCG1-based Type-C to DisplayPort adapter solution is a comprehensive solution for this market. It is fully reversible and comes with reference schematics, firmware for the EZ-PD CCG1 and the Billboard Controller device, as well as a flashing tool for firmware updates.”

The USB Type-C standard is gaining rapid support with top-tier PC makers by enabling slim industrial designs, easy-to-use connectors and cables, the ability to transmit multiple protocols, and 100W power delivery (PD)—a significant improvement over the previous 7.5W standard. The Type-C standard’s 2.4-mm-high connector plug is significantly smaller than current 4.5-mm USB Type-A standard connectors. It also allows for transport of USB signals and PCIe or DP signals on the same connector. A CCG1 product video, which demonstrates the transmission of DisplayPort signals over a Type-C connection, is available at www.cypress.com/ccg1video

The CYPD1120 device is available in a 35-ball CSP and 40-QFN package, while the CY7C65210 device is available in