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[DRA72x DSS] what's the video out clock?

Ding Ding
Prodigy 515 points


Hi,

May I know what's the maxiam pixel clock for DPI1/2/3 on J6eco pls?

in datasheet, looks like DPI2 3.3V mode, can acheive 165Mhz, is it the max value?

how about DPI1/3, is there limitation?

  • 0 in reply to Ding Ding
    TI__Guru 54897 points

    The datasheet shows the max frequency for each of the VOUT interfaces.  In summary, in 1.8V mode all 3 ports can support the maximum frequency of 165 MHz (1/6.06ns).  In 3.3V mode, VOUT2 can run at 165 MHz.  And VOUT1/3 are limited to 75 MHz (1/13.3 ns).

    You should also check the tdmin/tdmax characteristics of the different interfaces and perform a timing analysis with the external IC to make sure any given port is compatible with your target IC at a given frequency.

    Regards

    Kyle