MHL 3.0 Spec Enables 4K Video and 7.1 Audio Output on Mobile Devices

MHL Specification Now Supports 4K Video, 7.1 Audio Output

by Anton Shilov
08/21/2013 | 09:57 PM



MHL LLC, the organization behind mobile version of HDMI, has announced the MHL 3.0 specification to address the latest consumer requirements for connecting a mobile device to displays, marking major advancements in the areas of audio and video transmission over an MHL link.

“The new innovations in MHL 3.0 pave the way for the technology’s expansion into a broader set of home, office, and automotive applications. With an installed base of more than 330 million devices, MHL, as the world’s most widely adopted mobile TV-out standard, will continue to evolve to meet consumer needs,” said Judy Chen, president of MHL LLC.

MHL 3.0 doubles the bandwidth compared to the previous specification and delivers 4K (ultra HD 4K formats up to 2160p30) resolution, wider color gamut as well as enhanced 7.1 surround sound with Dolby TrueHD and DTS-HD, solidifying MHL’s growing presence in the living room. By using a bi-directional channel that’s significantly faster than MHL 2, the new specification enables concurrent 4K video and high-speed peripheral support of mass storage and input devices such as a touch screen, keyboard and mouse. The MHL 3 connector continues to use 5-pin form-factor, is backwards compatible with MHL 1 and MHL 2 as well as features HDCP 2.2 content protection.

“As broadcasters and content service providers strive to innovate and drive revenues, many of the global players including Comcast, NHK, the BBC, Orange and Netflix are trialing and/or  announcing plans to deliver UHDTV content. As TV everywhere initiatives are also a priority for the world’s broadcasters and online service providers, MHL’s technology solution with HDCP 2.2 will enable the secure delivery of 4K, premium content between different devices staying ahead of the consumer demand curve,” said Sarah Carroll, director of global business development at Futuresource Consulting.