• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 33 subscribers
  • Views 4895 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DS90C387 for RGB to Even/Odd LVDS output converter?

mooreaa
Prodigy 20 points
Other Parts Discussed in Thread: DS90C387

Hello,

I am trying to interface a pre-existing application processor to new lcd display that uses dual pixel (even/odd) LVDS signaling.

The display is a Sharp LQ156M1 and it uses a Thine electronics THC63LVDF84B compatible receiver. 

As my pre-existing AP doesn't have dual-pixel (even/odd) LVDS output,  I was hoping to use a TI DS90C387 RGB to Dual Pixel LVDS driver to interface to this display. However, based on the pixel timing diagrams I am not clear as to which LVDS pairs should map to this display. Sharp recommends a Thine transmitter (http://www.thine.co.jp/files/topics/168_ext_13_en_0.pdf) but was hoping to go with the Ti part instead. 

The Ti part shows sufficient LVDS transmitter pairs, but I am not sure how it divides the pixels up during transmission and if it would follow the even/odd pattern required by this display. Can I treat A0-A3 for even and A4-A7 for as odd for this display?

The inputs to the display are labeled as follows:

  • 0
    TI__Expert 7395 points

    Hi mooreaa,

    The DS90C387 is capable of single-to-dual pixel conversion to interface with the Sharp LQ156M panel. In the single-in/dual-out configuration, the pixels data is split into odd and even pixel (dual pixels) where the odd (first) pixel outputs to A0-to-A3 and even (second) pixel outputs to A4-to-A7. It is unclear from the LQ156M datasheet page 17, which reference pixel is the first pixel for D(1,1). Different panels define odd versus even differently. In some cases, the first pixel (top left) is odd, whereas others consider it’s even.

    Dac Tran

    SVA APPS