Tunable mux/demux linear redrivers from Diodes

Posted 27 May 2022

Diodes Incorporated has introduced two new multiplexer/demultiplexer (Mux/DeMux) linear ReDrivers, supporting the 20Gbps DisplayPort ultra-high bit rate (UHBR20) transmission mode.

The DIODES PI3DPX20021 is a 2-to-1, 4-lane Mux device, while the DIODES PI3DPX20012 is a 1-to-2, 4-lane DeMux device. Used on the graphic processing unit (GPU) outputs, the ReDrivers meet the growing need to share high-end graphics from one display source to one of two outputs, or the sharing of two display inputs on one display. They will be utilized in applications such as mobile workstations, gaming notebooks, display monitors, computing peripherals, wireless display adapters, industrial PCs, docking hardware, and KVM switches.

These two ReDrivers support 8 equalizer adjustment settings, plus 4 setting adjustments of the output flat gain and output swing to achieve better signal integrity tuning. Channel loss can be compensated for and inter-symbol interference (ISI) jitter removed, resulting in extended channel reach.

The typical input-to-output latency of the PI3DPX20021 and PI3DPX20012 is 0.5ns. Both these devices are protocol-agnostic and transparent to link training. An input signal detection function allows them to be automatically placed into power-saving mode when their inputs become idle.



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