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High-speed active-protocol bi-directional converters manage audio and video signals between DisplayPort and HDMI

June 15, 2012 // Julien Happich

High-speed active-protocol bi-directional converters manage audio and video signals between DisplayPort and HDMI

STMicroelectronics' “Mystique” family of products is what the company claims to be the world's first high-speed active-protocol bi-directional converters for managing audio and video signals between DisplayPort and HDMI.

The SoC‘s unique bi-directional conversion of HDMI 1.4 and DisplayPort 1.2 formats ensures seamless connectivity among various consumer and commercial computer and multimedia equipment. The converters also enable the ultimate multimedia experience by supporting the new ultra high-definition 4Kx2K displays (4096x2160p is 4 times Full HD) and 7.1-channel surround sound.The Mystique converters accept and output DisplayPort 1.2 High Bit Rate 2 data, at 5.4Gpbs per lane, so only two data pairs are required to drive a Full HD 120Hz TV, minimizing cable and component cost and signal routing space in product design. OEMs can expand their connectivity solutions across a broad range of existing and new products by developing external dongles and docking stations supporting both HDMI and DisplayPort standards for enterprise, mobile and home use.

The new DisplayPort 1.2 standard enables wider bandwidth data of up to 21.6 Gbps, and multi-stream transmission through a single cable for ‘daisy chain’ and ‘tile’ display applications. It also offers the best radio frequency immunity in the mobile-product segment. The chip supports RGB and YUV video formats with deep color support up to 16 bits/color, it offers High-Bandwidth Digital Content Protection (HDCP) 1.3 with on-chip keys & HDCP repeater capability. Adaptive equalization and pre-emphasis are integrated for long-reach cable support. Audio is supported up to 7.1CH from 32kHz to 192kHz and high bit-rate audio.

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