Board Design Guidelines - HDMI - 1.0 English

HDMI GT Controller LogiCORE IP Product Guide (PG334)

Document ID
PG334
Release Date
2022-04-21
Version
1.0 English

Transmitter

Figure 1. Transmitter Board
  • The GT transmitter does not support TMDS Level Signaling and must be used with a cable driver to be compliant with TMDS specification.
  • TMDS Level Shifting can be done using external level shifter ASSPs such as:
    • Texas Instruments SN65DP159
    • ON Semiconductor NB7NQ621M (HDMI 2.1)
  • Board design simulation must be done to ensure proper operation.

Receiver

Figure 2. Receiver Board
  • The GT Receiver does not support TMDS Level Signaling and must be used with a retimer or equalizer to be compliant with the TMDS specification.
  • TMDS levels are emulated using external pull-up resistors (located close to the device GTs)
  • Use external TMDS Retimer/EQ chip recommended for HDMI 2.0 data rates such as:
    • Texas Instruments TMDS181
    • ON Semiconductor NB7NQ621M (HDMI 2.1)
  • Board design simulation must be done to ensure proper operation.