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DS90UB949A-Q1EVM: J18 in EVM schematic

Roy Chou1
Genius 16110 points
Part Number: DS90UB949A-Q1EVM
Other Parts Discussed in Thread: DS90UB949-Q1EVM

Hi Team,

I would like to know the J18 function in yellow circle in DS90UB949-Q1EVM APP note.(http://www.ti.com/lit/ug/snlu232a/snlu232a.pdf?ts=1588061193805)

Regards,

Roy

  • 0
    TI__Mastermind 25955 points

    Hi Roy,

    U5 is a DIP socket for placing an external local EEPROM for EDID, which is accessed via the DDC interface.  Pin 8 on the socket U5 is powered by VDD_DDC.

    For J18:

    19: HPD
    18: RX_5V
    16: DDC_SDA
    15: DDC_SCL
    13: CEC

    I have included images below.

    Sincerely,
    Bryan Kahler