SN75DP139: spec check

Hi,

We do not have a DVI Dual Link in our product portfolio.

Thanks

David

Hi David

The customer has found that in this spec it is mentioned that dvi dual link can be achieved. Would like to confirm with you this time Thanks

Hi Nasser

So, can it be understood that using two ICs can achieve dual link transmission specifications?

Hi Nasser

Could you help with suggested designs

The customer's current design is to directly use the CPU's native TCSS signal to the DVI IC. TCSS only has 1 pair of CLK + 4 pairs of RXTX, but the public reference line requires 5 pairs of signal lines + CLK

DS16EV51-AEVKD DVI Extender Demo Kit for Dual or Single Link DVI Cables (ti.com)

Hi Nasser

What difference will there be if D4 and D5 are not connected?

Hi Nasser

If you want to use 2048*1536p, you must use D3/D4/D5 The signal used is that the CPU's native TCP signal only has one set of clk + 3 sets of DP/DN, which leaves three sets missing. So I would like to ask if you need another set of TCP for D3/D4/D5 and is it provided? how to do it

1. How to design D3/D4/D5? The requirement is to reach the highest specification of dual link.

2. How to design HPD

Hi Nasser

Thank you for your comment

No more questions about HPD

Another question is: Where do the D3, D4 and D5 signal sources come from? (The left picture below shows the available signal sources, the red ones on the right are D3, D4, and D5)

Hi  Nasser 

1) The customer's Video source is the TCP1 group. There are four pairs of TXRX, namely D0, D1, D2 and CLK.

That needs to achieve the highest specifications, so D3, D4 and D5 are needed, so they want to know whether D3, D4 and D5 need to be

pulled from the second set of TCP, or how to do it?

2). What is connected to the reference circuit INPUT?