STMicroelectronics has introduced high-definition multimedia interface switch to support a video data-transfer rate of up to 3.4 gigabyte per second compliant with the version 1.3 high-definition multimedia interface specifications. This will enable 16-bit depth of 65,000 colors for a high-definition picture compared with the 12-bits traditional products.
The company claims that the switch, STDVE003A, is first of its kind in the world and has been designed to be used in LCD and Plasma TV sets to provide multiple high-definition multimedia interface (HDMI) inputs for external program sources such as game consoles, high-definition DVD players, and set-top boxes. Additionally, the HDMI features an integrated equalizer to avoid signal degradation over long (greater than 20m) and lossy cables.
The STDVE003A, which complements STMicroelectronics’ existing STHDMI002A two-way high-speed TMDS switch, is a digital multiplexer designed for transition minimized differential signaling (TMDS) data transfer. Configured as a 3:1 switch, it enables TV designers to provide a maximum of three input while using only a single HDMI receiver chip. The device is developed using STMicroelectronics’ advanced BiCMOS6G SiGe process technology.
STMicroelectronics claims that STDVE003A enables designers to upgrade their current solutions without changing the printed circuit board (PCB) layout to improve its performance. The signal routing is controlled through the switch by means of Select pins. The device also supports display data channel and hot-plug detect data switching, and provides on-chip 50-ohm input termination.
In June 2006, Accell launched UltraAV HDMI 2-1 switch for the A/V home theater and presentation markets, which enables concurrent access to two video sources and a wireless remote to swap between devices.
Source: ComputerWire daily updates