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(ADV7390/1)Does ADV7390/1 supports ED-SDR 8bits 54MHz?

Hi!

I have some questions about ADV739*.

(1)=========================================================

I want to input BT.656 ED(525p)-SDR 54MHz 8bit(not 16bit) to ADV739*.

Does ADV7390/1 support that Video-format?

Or must I use ADV7392/3?

At the data sheet P7(Table4),

it says that the spec is

SD/ED 27MHz

ED(at 54MHz)

I think this means , ADV739* supports

SD-SDR 27MHz

SD-DDR 27MHz

ED-SDR 27MHz

ED-DDR 27MHz

ED-SDR 54MHz

and the point is ED-DDR 54MHz is not support.

Is my understanding is correct?

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(2)=========================================================

And the date sheet P28(Tabele 18) says ED/HD-SDR is supported

by only ADV7392/3 because the ADV7390/1 can support 8bit input.

Is my understanging is correct?

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(3)=========================================================

Can you tell me what is the difference between

"ED/HD-SDR input" and "ED(at 54MHz)input"?

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(4)=========================================================

At date sheet P31(Table 20),

it says that ADV739* can support BTA-1004.

Does ADV7390/1 can support BTA-1004 ED(525p)-SDR 54MHz 8bit(not 16bit)?

Or must I use ADV7392/3?

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(5)=========================================================

If I input the ED video support(which is supported by the devices),

is there any different signal process and output signal?

I want to understand what is the differnce between ADV7390/1 and ADV7392/3 besides Macrovision.

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The point is , I want to know that

Does ADV7390/1 can support BT.656 ED(525p)-SDR 54MHz 8bit(not 16bit)?

Does ADV7390/1 can support BTA-1004 ED(525p)-SDR 54MHz 8bit(not 16bit)?

Or must I use ADV7392/3?

I would really appreciate if you don't mind to teach me about this.

Best regards.

Kawa

  • Hello Kawa,

    1) There is no ED-DDR at 54Mhz anyway. ED-DDR at 54Mhz makes no sense-- that would mean a format with a pixel clock of 108Mhz. What I think you are talking about is what we are calling ED-SDR (54Mhz)-- 8bit components interleaved with 1 component per clock at 2x the real clock rate. What I think you want to do is supported.

    ED-DDR 27Mhz and ED-SDR 54Mhz are basically the same thing, only one is a 27Mhz clock and you sample on both edges and the other is a 54Mhz clock and you sample on only one edge.

    2) Correct

    3) ED-HD-SDR is a 16-bit wide interface with components in parallel with one pixel (2 components) per clock.

    ED at 54Mhz is an 8-bit wide interface with 8-bit components interleaved at 2x the pixel clock.

    4) There is no difference in the parts in terms of that format support, it's only that the video bus is 8-bit versus 16-bit.

    5) It's only the video bus size and macrovision that is different.

    Dave

  • Hi Dave!

    Thank you for your answer.

    I understood almost.

    I have two questions again.

    3)

    At your answer ,ED(54MHz) is 8-bit, but at the data sheet Figure10 and 11 said ,

    the device can support 8bit or 10bit .

    With my understanding , it is not important if the input is 8-bit or 10-bit.

    The point is the input-format.

    So, if I want to use 8bit-Input , I can choose ADV7390/1

    but if I want to use 10bit-Input, I have to choose ADV7392/3.

    Is my understanding is correct?

    4)

    With your answer and form the data sheet,

    I understood that ADV7390/1 can support BT.656 and BTA-1004 with 54MHz-SDR(8bit).

    If I want to use these formats ,only I have to do is select the right register(0x30).

    If I want to use BTA-1004 , I think I have to choose

    0x30 = 00010

    And if I want to use BT.656 which register should I choose?

    I would really appreciate if you don't mind to teach me about this.

    Best regards.

    Kawa

  • Hello Kawa,

    3) Yes-- 8-bit or 10-bit doesn't matter if there are enough pins. Your understanding is correct.

    4) The default for SMPTE 293M is what you would pick-- 0

    Dave

  • Hi Dave!

    Thank you for your answer.

    5)

    So, if I maintain the timing ,does the device can handle BT656 or BTA-T-1004?

    6)

    I understood with your answer that the device can support 8-bit ED-SDR 54MHz.

    And also I am searching the Configuration Scripts with using ED-SDR 54MHz(BT656 or BTA-T-1004).

    And from Table.63 to 131, there is no example using ED-SDR 54MHz 8-bit.

    Can you show me the example Scripts using ED-SDR 54MHz 8-bit?

    I would really appreciate if you don't mind to teach me about this.

    Best regards.

    Kawa

  • Hi Dave!

    Thank you for your answer.

    5)

    I'm sorry to asking the same question.

    I understood your answer.

    6)

    Thank you for your answer.

    I will try these things with the EVAL-BOARD.

    Best regards.

    Kawa

  • Hi Kawa,

    5) How is this question different from the other times you have asked the same question? Yes, the part supports those standards.

    6) There isn't a script for it. Start with the 16-bit SDR case in Table 98 closest to you want and then change the setting for register 0x01 to be the 54Mhz ED setting instead of whatever is there.

    Dave

  • Hi,

    By using following settings i am not getting correct ntsc ED 525p YPrPb video output.

    54MHZ ED

    clkin -> 54 MHZ

    ADDR  DATA

    0x00    0x1c

    0x01    0x70

    0x30    0x04

    0x31    0x01

  • Hi,

    Seems like it is duplicate of this thread ez.analog.com/.../adv7393-ed-test-bar

    It is advised not to create duplicate thread since it would be difficult for tracking.

    If your question is not answered, you can ask the follow up in the original thread.

    Thanks very much for understanding.

    Thanks,

    Poornima