Power

Tunable linear ReDrivers supports DisplayPort 2.0

30th July 2021
Alex Lynn

Diodes Incorporated has reinforced its extensive linear ReDriver IC portfolio via the introduction of two new 3.3V-rated multi-lane active demux devices. These advanced ReDrivers address the demux needs now being set by the more graphically intense functions of mobile workstations, gaming PCs, and display dongles, while also still being fully optimised for the latest industrial computers and embedded systems hardware.

Supporting 13.5Gbps data rates, the four-lane PI3DPX8112 is applicable to DisplayPort 2.0 implementations (as well as earlier generations of the protocol). Alongside this is the four-lane PI3HDX12212, which has 12Gbps performance capabilities that mean it can manage HDMI 2.1, HDMI 2.0, HDMI 1.2, and HDMI 1.4 transmission modes.

Both the PI3HDX12212 and PI3DPX8112 ReDrivers feature pin strap adjustable eight-level receive equaliser settings on each of their two output paths, plus four settings for the adjusting of output flat gain and output swing parameters. Through these adjustments, it is possible for the signal integrity to be tuned in accordance with specific application requirements.

Channel losses can then be compensated for and inter-symbol interference (ISI) removed to help extend channel reach. These devices are able to accept lower supply voltages than those achievable by the competition. They are protocol agnostic, transparent to channel link training, and deliver ultra-low latency operation.

The PI3DPX8112 and PI3HDX12212 are both supplied in 32-pin TQFN packages (with 3x6mm dimensions) that are highly suitable for incorporation into space-limited environments. Both devices support a working temperature range of -40 to +85°C. In 5,000 piece quantities, the PI3DPX8112 has a unit cost of $1.84 and the PI3HDX12212 has a unit cost of $2.22.

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