DM6467T - VPIF 720p Input on 8-Bit BT.656-like Interface

Hi,

720P is not composite its component.

Regards,

--Prabhakar Lad

http://www.linkedin.com/in/prabhakarlad

Oops.  I mix those terms all the time.  Is there a component video decoder IC known to be compatible for this purpose?

720P input on 8-bit is component and  it's BT.1120.

I see that I can use the full 16 bit interface and use a 720p decoder chip with a BT.1120 interface at 74.25MHz (30fps).

But if I only have 8 bits of the VPIF interface available, here's the best solution I've come up with so far: Use a component decoder chip, such as the AD7403, which can output in 8-bit mode at Double Data Rate (DDR), providing the Y values on the rising edge and C values on the falling edge.  Does the DM6467T support DDR video input signals?  I think not, in which case I would need a PLL IC to double the pixel clock coming from the decoder chip, resulting in 148.5MHz, which is within the spec of the VPIF frequency. 

Are there any flaws in this approach?  Is there a better alternative given the 8 bit limitation?

Thanks.

Hi,

That is very reasonable.

Regards,

Hyun