HDMI Video Input/Output

VEK280 Evaluation Board User Guide (UG1612)

Document ID
Release Date
1.1 English

The VEK280 evaluation board generates HDMI video output using the TI TMDS1204 HDMI redriver chip. This video output is fed to a Molex HDMI™ 2.1 receptacle. The board also accepts HDMI video input on another Molex HDMI2.1 receptacle to another TI TMDS1204 HDMI™ redriver on the receiving.

Note: The TDMS1204 supports lane swapping. The transmit side takes advantage of this for improved layout and needs to be configured appropriately. For more information, see the TDMS1204 datasheet, section Swap (8.2.5 in SLLSF57 – AUGUST 2022 datasheet revision) and VEK280 schematic page 44.

The TMDS1204 HDMI 2.1 redriver supports data rates up to 12 Gbps. It is backwards compatible with HDMI 1.4b and HDMI 2.0b. The TMDS1204 can support both three and four lane HDMI 2.1 FRL at 3, 6, 8, 10, and 12-Gbps.

More information on the TI TMDS1204 is available on the TI website.

Note: The first release of the EA VEK280 board has a FRL data rate limit of 8 Gbps / lane

The series capacitor-connected HDMI TX and RX data signals from TMDS1204 are routed to the VE2802 GTYP Bank 204.