ADV7613 LVDS data mapping for YCbCr422

Hi,

I have questions below about ADV7613 LVDS data mapping on YCbCr mode.

 - where can I get the information about LVDS data mapping for YCbCr?

- If i can use TRS on LVDS output?

Best regards

Mehiro

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  • 0
    •  Analog Employees 
    on Jul 13, 2020 10:56 AM 6 months ago

    Hi,

     - Where can I get the information about LVDS data mapping for YCbCr ?

       As per specification, ADV7613 LVDS transmitter can output only either in 18-bit or 24-bit RGB data, that is, six bits or eight bits per color component. So it doesn't possible in YCbCr.

     - If i can use TRS on LVDS output?

        ADV7613 is just a receiver.  IO 0x05[2] inserts AV code into the output digital video stream. The sync has be able to regenerate the sync pulses similar to what our ADV7511 can do.
      
    Thanks,
    Poornima
  • Hi,  Poornima

    Thank you for the reply.

    > So it doesn't possible in YCbCr.

    Referring to specification,  there is a Component Processor (CP). and it mentions RGB to YCrCb conversion (page 12, ADV7613 datasheet). so, I thought i could use YCbCr mode.

    >ADV7613 is just a receiver.  IO 0x05[2] inserts AV code into the output digital video stream. The sync has be able to regenerate the sync pulses similar to what our ADV7511 can do.

     

      I'm using ADV7610 with SAV/EAV output mode (0x05[1]). it's able to insertion TRS (SAV/EAV) on Digital Parallel Video bus.

     Do you mean ADV7613 doesn't have that mode? 

     Since I can't find Software manual (register map) of ADV7613, where can I get?

    Best regards,

    Mehiro

     

     

  • +1
    •  Analog Employees 
    on Jul 14, 2020 7:29 AM 6 months ago in reply to Mehiro

    Hi,

     Referring to specification,  there is a Component Processor (CP). and it mentions RGB to YCrCb conversion (page 12, ADV7613 datasheet). so, I thought i could use YCbCr mode.

       Yes, But in LVDS Output mode section, they specified as "LVDS transmitter can output as RGB data".

       Have you tried with YCbCr input with LVDS output?

    Do you mean ADV7613 doesn't have that mode? Since I can't find Software manual (register map) of ADV7613, where can I get?

      In register 0x7B you can have control for AV code insertion of ADV7613. Please refer Page96 of Register Control Manual

    Also note that  once AV codes inserted into the stream . The STDI registers are valid when the 7613 is locked into the input stream, in that you can read the received format to determine how to set up the downstream sink to decode the embedded sync signals in the 7613 digital output.

    Thanks,

    Poornima

  • Hi, Poornima

    Thank you for the reply and I understood.

    I haven't tried YCbCr input . now I'm in early stage of designing circuit.

    I checked 0x7B on Register Control Manual. I 'll try to check this function when my PCBA sample is ready.

    Best regards,

    Mehiro

  • +1
    •  Analog Employees 
    on Jul 14, 2020 9:28 AM 6 months ago in reply to Mehiro

    Hi,

     Thank You.

    Regards,

    Poornima

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