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DS90CF384A: DS90CF384A with i.MX8M Plus based SoM Interfacing

Rushin Mehta
Prodigy 10 points

Part Number: DS90CF384A
Other Parts Discussed in Thread: DS90CF386, DS90C385A

Hello team,

I am working on a new carrier board design based on the Compulab UCM-iMX8M-Plus System-on-Module (NXP i.MX8M Plus SoC). I am using the DS90CF384AMTDX/NOPB as the LVDS-to-parallel RGB bridge between the SoM LVDS output and a Rocktech RK070CU03-CTG 7-inch 1024x600 RGB 24-bit TFT panel. I have a few questions I would like to confirm before finalising the schematic. 

 

SYSTEM PARAMETERS FOR REFERENCE
---------------------------------
  SoC:             NXP i.MX8M Plus (Quad, 1.8 GHz)
  SoM:             Compulab UCM-IMX8PLUS-C1600QM-D4-N32-E-TIC
  Bridge IC:       DS90CF384AMTDX/NOPB (SNLS040I Rev I)
  Panel:           Rocktech RK070CU03-CTG (1024x600, 24-bit RGB, DCLK 40.8-51.2-67.2 MHz)

image.png

Question 1 : Will the TI DS90CF384A, be able to take the LVDS signals from the SoM independandtly ? Or does it only support its Transmitter Counterpart ? 

Question 2: If it wont work, shall i replace it with the DS90CF386 ? Or any other that you can suggest?  

 

  • 0
    TI__Mastermind 30400 points

    Hi Rushin,

    To answer your questions:

    1. Yes, the DS90CF384A can be used to convert LVDS video to RGB/LVCMOS. It does not necessarily require using the transmitter pair (such as DS90C385A) as long as the input is LVDS video following the OLDI/LVDS specifications.


    2. Yes you can also use the DS90CF386 instead which supports a higher pixel clock rate if required. Which device you choose for this application will be dependent on the PCLK rate.

    Best regards,
    Ikram