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DS90C187 / Signal input timing

S.Satoshi
Guru 21675 points
Other Parts Discussed in Thread: DS90C187

Hi,

Please let me ask about signal input timing at DS90C187. Can you accept if the RGB signal input before IN_CLK and PDB? Of course the VDD is applied before RGB signal at this case.

Your comment will be appreciated.

Best Regards,

Sonoki / Japan Disty

  • 0
    TI__Mastermind 29655 points
    Hi Sonoki-san,

    The DS90C187 should be able to receive RGB signal inputs without issue before IN_CLK and PDB. This is because, if no input is applied to IN_CLK or PDB, then both are internally pulled-down. For ideal operation, please pull-up PDB to enable the device when both incoming RGB data and the IN_CLK are available.

    Thanks,

    Michael