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Original question:

DLPC2607: Use of mobile DDR SDRAM

DLPC2607: Purpose of Mobile DDR SDRAM

MANIKANDAN B
Prodigy 10 points
Part Number: DLPC2607

Tool/software:

Hello Texas Instruments,

I am currently working on transferring a buffer to a projector using the DLPC2607 display controller.

The DLPC2607 datasheet mentions a 16-bit interface for Mobile DDR DRAM and its compatibility with the controller. I would like to confirm whether this memory is strictly necessary for the DLPC2607 to function as a video buffer. If it is optional, can we remove it based on our requirements?

  • 0
    TI__Expert 8470 points

    Hello User, 

    Welcome to the E2E forums and thank you for your interest in DLP technology. We hope to assist you with your questions. 

    The mobile DDR DRAM is used as a double buffer frame memory and is necessary for normal operation and design. It will convert the RGB bitplane data into the necessary format for the DMD. 

    Please note the below information is for a different chipset which uses an internal buffer but I just wanted to provide more information on what the buffer is doing. For the DLPC2607 since it does not have an internal buffer it is necessary for the mobile DDR DRAM to be used as an external buffer for proper operation. 

    Thanks,

    Alex Chan