The HDMI Forum Inc. released the latest HDMI 2.0b interface standard in September, and the specification details of HDMI2.1 were also announced. HDMI is currently the most popular audio and video interface in the video and audio market, covering TV, display, PC, mobile phones and other fields.
Portland, Oregon, USA — November 29, 2017 — Lattice Semiconductor Corporation (NASDAQ: LSCC), a leading supplier of customized smart interconnect solutions, today announced the launch of the SiI9437 and SiI9438, the first Enhanced Audio Return Channel (eARC) audio receiver and transmitter in compliance with the HDMI® 2.1 standard. eARC is a future-proof application that significantly improves home theater connectivity. This easy-to-use, new audio feature is part of the latest release of the HDMI 2.1 specification. eARC technology is developed by the HDMI Forum, which consists of more than 80 industry-leading consumer electronics companies.
As the founder, contributor and adopter of the HDMI standard, Lattice continues to maintain its market leadership with the newly released HDMI 2.1 product supporting eARC technology. eARC enables audio devices to work seamlessly with televisions. Device selection and volume control are controlled by the TV remote control, eliminating the need for additional operations on the audio device. The eARC uses two pins of the HDMI interface (the same functions as the HDMI Ethernet channel) to transmit low-jitter, high-bandwidth audio and two-way communication signals for audio function discovery and control. This is a significant improvement over the old TOSLINK and SPDIF audio outputs, which require separate cables and connectors and do not provide the communication support required between the audio device and the TV.
Joanna Skrdlant, General Manager of Xperi Home Audio Equipment and Solutions Licensing, said: "DTS (now Xperi) is pleased to work with Lattice to develop eARC technology that addresses long-term compatibility that is important for home theater equipment. Problem. We believe that the new features of eARC technology can provide consumers with an enhanced home theater experience. Audio content can now be directly connected to the audience through a simpler TV and audio device interconnection, full HD Blu-ray Disc, Blu-ray Disc and streaming services offer DTS: incredible audio experiences like X-immersive audio and DTS-HD surround sound."
Marshall Goldberg, marketing manager for Lattice Semiconductor, said: "HDMI has always adhered to two promises to consumers - to provide the highest possible digital audio and video quality, and to simplify the use of automatic configuration. eARC technology in home theater The interconnect industry has taken a big step because it delivers higher audio quality than TOSLINK or SPDIF without the need to switch via AVR devices. In addition, the new discovery feature ensures that products from different manufacturers are connected. Compatibility with home theater systems."
The advent of eARC makes high-performance audio systems as easy to use as the built-in speakers of a TV. Key features of the Lattice HDMI 2.1 SiI9437 and SiI9438 eARC ICs include:
·Support TV and audio equipment
Compatible with existing HDMI transmitters or receiver ICs that comply with all HDMI standard versions
· Support HDMI 2.1 eARC and HDMI 1.4 traditional ARC mode with automatic ARC fallback function
· Support eARC control channel function through I2C interface
·4mm x 4mm QFN package with 0.4mm pitch
Support for eARC data channels, including lip sync, discovery, heartbeat, status, and function signals
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