Board Design Guidelines - HDMI - 2.2 English

Video PHY Controller LogiCORE IP Product Guide (PG230)

Document ID
PG230
Release Date
2023-11-03
Version
2.2 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 specifications.
  • TMDS Level Shifting can be done using external level shifter ASSPs such as:
    • Texas Instruments SN65DP159
  • 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. While the system can work without a TMDS retimer, AMD does not provide recommendations on this and recommends that all designs use a TMDS retimer.
  • TMDS levels are emulated using external pull-up resistors (located close to the FPGA GTs).
  • Use external TMDS Retimer/EQ chip recommended for HDMI 2.0 data rates such as:
    • Texas Instruments TMDS181
  • Board design simulation must be done to ensure proper operation.