• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 32 subscribers
  • Views 480 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

About VCIM of DS90UH929

Kei Sato73562
Expert 2310 points

Hello

Q1

Please tell me the difference between VCIM1 and VCIM2. please look at "D/S p9 TMDS INPUT".

Q2

How should the voltage of VTERM choose it?(3.3V or 1.8V)

Is it the following understanding?

When AC couples a signal of the HDMI, it is necessary to make VTERM 1.8V.

It is necessary to make VTERM 3.3V when DC couples a signal of the HDMI.

Best Regards,

Kei

  • 0
    TI__Genius 14015 points

    Hello Kei,

    I apologize for the confusion on the datasheet. VICM1 is when VTERM = 3.3V and the TMDS inputs will be DC coupled. VICM2 is when VTERM = 1.8V and the TMDS inputs will be AC coupled. The input common mode voltage must be different in each case.

    Let me know if you have any questions.

    Thanks,
    Jason