Re-driver for Display Port via USB Type-C is automotive-compliant

Diodes has announced what is says is industry’s first AEC-Q100 grade 3 qualified 10Gbit/s USB-C DisplayPort Alternate (DP-Alt) mode linear re-driver IC.

DP-Alt mode allows the transfer of DisplayPort signals through a USB Type-C connector.

Called PI3DPX1207Q, the Diodes’ chip supports 8.1Gbit/s DP1.4 and 10Gbit/s USB 3.2 specifications.

It is a “transparent, protocol-agnostic re-driver capability for a range of automotive applications including infotainment systems and cluster display panels”, said the company. which at the same time announced that Qualcomm has specified it for infotainment applications in the Snapdragon ‘automotive development platform’ (ADP) – which is based on the third generation of Snapdragon automotive cockpit platform.

Use with displays up to 8K is possible, “entirely transparent to channel link training”, said Diodes. “Linear equalisation does not block the Receiver DFE’s adaptive channel controls, supporting DisplayPort Transparent LT [link training] without dependency of the DP-Aux channels listener.”

Each of the 4-to-4 linear differential channels is controllable via I²C commands, including equalisation, gain, and output swing. Some pin-controlled settings are also available.

Controls also include adjusting signal integrity settings for compensation and removing inter-symbol interference jitter.

An integrated AUX switch and AUX listener can monitor for DisplayPort power down commands or a power-down instruction via the I²C interface.

It comes in a 42pin TQFN package, supports PPAP documentation and is manufactured in IATF16949 certified facilities.