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Which Display SerDes Solution to use ?

Richard Collins
Prodigy 40 points

Other Parts Discussed in Thread: DS90UB927Q-Q1, DS90UB928Q-Q1, DS90UB947-Q1

Hi,

I have a Lumineq EL640.480-AM LVDS TFEL display that I want to connect to via a SerDes link.

This display has a 1-lane LVDS interface and runs at 25MHz and support the following data packings:-

  • LVDS single bus, 18 bpp, VESA data packing
  •  LVDS single bus, 18 bpp, JEIDA data packing
  •  LVDS single bus, 24 bpp, VESA data packing
  •  LVDS single bus, 24 bpp, JEIDA data packing

My search for a suitable device led me to the DS90UB927Q-Q1 / DS90UB928Q-Q1 combination.

But could I use a DS90UB947-Q1 to interface to my processor and the DS90UB928Q-Q1 to interface to the display?

This would allow me to introduce a higher resolution display at a later date without changing the serializer interface.

As I have not designed any SerDes products before I wanted to know if these devices were suitable and whether anyone had any problems with them before I purchased the evaluation kits.

Thanks in advance,

Rich C.

 

  • 0
    TI__Genius 10475 points
    Richard,
    The DS90UB947 serializer is backwards compatible to the DS90UB926 or DS90UB928 deserializer. Please refer to the DS90UB947 datasheet where the information about backwards compatibility is mentioned.
    For training and gaining knowledge on using FPD-Link devices, you can refer to the device datasheets, EVM user guides, app notes and other product documentation available under the product folders on ti.com. You can also look at the training videos and the FPD-Link overview page at the links below.