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Original question:

TDA2: HDMI signals are not connected via companion IC TPD12S016RKTR

TDA2: HDMI signals are not connected via companion IC TPD12S016RKTR

CTY Lim
Prodigy 180 points
Part Number: TDA2
Other Parts Discussed in Thread: TPD1E05U06

How destructive are the HDMI signals if I am using TPD12S016RKTR for ESD protection instead of using TPD1E05U06, knowing the IO capacitance is higher (1.2pF) as compared to 0.47pF of TPD1E05U06? If I am using the HDMI port for lab-use purpose, is it good enough to use TPD12S016RKTR and DLW21SZ900HQ2L to save cost and mainly board space?

  • 0
    TI__Mastermind 44270 points

    We cannot answer the question as we have not tested the described configuration.  The higher capacitance will impact the interface at higher speeds.  The amount of impact would depend on the display resolution, refresh rate, and color depth used in the application.  We have seen to reach the highest speeds the interface needs to be optimally designed, including using components with lowest capacitance.  It is expected the interface can operate at less than max frequency using less than optimal design components.

    Thanks

    Robert