Multi-channel mux/demux improves HD/UHD video signal routing

Video passive multiplexer/demultiplexer (mux/demux) switches from Diodes now include the four-channel PI3WVR14412, which supports up to 20Gbits per second operation. The 2:1/1:2 mux/demux device provides speeds beyond those of other products on the market, claims Diodes.

The PI3WVR14412 is fully compliant with both the DisplayPort 2.0 and HDMI2.1 interface standards, which are featured in the latest generation of graphics processor units (GPUs). The switch can be used in mobile workstations, games consoles, docking systems, notebook computers, monitors, TVs, and set-top boxes.

The PI3WVR14412 enables the routing of 4K high definition (HD) and 8K ultra high definition (UHD) video signals while exhibiting extremely low signal attenuation, says Diodes. Routing can either be from two sources to a single sink or conversely a single source to dual sinks.

Proprietary technology elevates speeds attained by the PI3WVR14412. Its high speed channels are able to maintain signal integrity characteristics, for example, when running at 10GHz, a -2dB insertion loss and a -10dB return loss are typically witnessed. The channel-to-channel crosstalk is just -35dB and off isolation is -15dB at this frequency. Bit-to-bit skew is normally only five pico seconds.

Bi-directional communication is provided via the aux channel to allow other protocols like USB 2.0 to be supported, and avoiding the need for additional cabling to the host. The wide input signal voltage range of 0V to 3.6V allows direct coupling of HDMI at VDD bias and DP signals at 0 bias. Fewer passive components are required, so less board real estate is needed. Hot plug detection (HPD) and display data channel (DDC) are also included, which eliminates the need for an external mux. An extended temperature range of 0 to 105 degrees C is supported.

The PI3WVR14412 mux/demux devices are supplied in compact 40-pin TQFN packages, measuring 3.0 x 6.0 x 0.75mm.

Diodes delivers semiconductor products to companies in the consumer electronics, computing, communications, industrial, and automotive markets. Its product portfolio includes discrete, analogue and mixed-signal products and packaging technology.

The company has operations in 31 sites around the world, including engineering, testing, manufacturing, and customer services.

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