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AM3358: Does this part support display port interface

Lauren Mayfield
Expert 8175 points

Part Number: AM3358
Other Parts Discussed in Thread: TFP410

Hi team,

On reviewing the datasheet for the AM3358, it doesn't appear that it will or can support a display port interface, (ideally a display port interface w/ a usb type c connector). Can you confirm that's the case, or do you know of a solution for the Am3358 to display port over usb type C?

Thanks,
Lauren

  • 0
    TI__Expert 3340 points

    Hi Lauren,

    AM335x does not support native Displayport, it does Parallel RGB through the DSS. You'd need a Parallel RGB to Displayport IC to do this conversion. 

    Commonly on 335x designs we convert Parallel RGB to HDMI with something like the TFP410 (DVI is HDMI signaling minus Audio essentially), but I'm not aware of a DisplayPort equivalent. 

    The chip you're looking for is a "Displayport Serializer" that takes in Parallel RGB.

    Only other solution is a HDMI to DisplayPort converter IC (which are thankfully common).

    As far as the Type-C portion of this, you'll want to look at USB-C Displayport Alt mode. This is going to be part of your system design and I believe a Type-C PD controller such as those in the TPS659xx support negotiating this mode.

    Best Regards,

    Andrei

  • 0 in reply to Andrei Aldea
    TI__Expert 8175 points

    Hi Andrei,

    Thank you for your response. By HDMI to display port converter, are you referring to something like https://www.ti.com/product/TDP0604?

    Also, how would this interface with the AM335x unless we had a parallel RGB to HDMI converter in front of it?

    Thanks,

    Lauren

  • 0 in reply to Lauren Mayfield
    TI__Expert 3340 points

    Hi Lauren,

    I don't believe that is the case no. That is simply a re-driver, so it's a device that acts as a signal conditioner. I don't believe it's able to convert DP to HDMI or vice-versa. 

    And correct, you would still need to have the parallel RGB to HDMI converter in the signal chain.

    Best,

    Andrei