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DLP3310: Looking for DLP

Danilo A.
Mastermind 24705 points
Part Number: DLP3310
Other Parts Discussed in Thread: DLP9500, , DLP471TP, DLP4710, DLP7000

Hi Team,

Our customer is looking for a DLP with resolution at or higher than 1024x768, that can flip mirrors given a pre-loaded binary pattern at 44 microseconds or faster. She has some inquiries as follows;

My primary question, though, is about the frame rate - when the specs say "input frame rate" and the value is in Hz, does that refer to the maximum speed the mirrors can flip, or does it refer to the frame refresh rate?

I'm wondering what the advantage of the DLP9500 is over the DLP3310? Is it primarily light throughput? I see that the 3310 and 9500 have micromirror switching times of 10 and 13-22 microseconds, respectively. Though the 3310 states that the "input frame rate (max)" is 60 Hz - how does that translate to switching time of mirrors? If I were to pre-load a number of binary arrays, would I be able to display one every 10 microseconds? Or only one every 0.0167 seconds (1/60 Hz)?

I would be looking for the DLP with a controller, but would likely be providing my own lighting, unless you could suggest a strong broadband 400-700 nm light source, where we would otherwise be implementing our own source (white light LED) and optics. What is the cost for the optics components (I assume this refers to a grating, collimating mirrors, lenses) of the system from you/third party?

Regards,

Danilo

  • 0
    TI__Genius 12575 points

    Hello Danilo,

    Welcome back to the E2E forum!

    We have a number of options that may suit your clients needs. She may wish to look at our Products Page.

    Can you speak on the application that your client is looking to meet with the DLP chipset? If she is looking for a display resolution of 1024x768 or higher, an actuated XPR option may work well. If it is necessary that the DMD have a native DMD resolution exceeding these specs, be sure to be focusing on the Mircomirror array size column. In particular, she may be interested in the DLP471TP, DLP3310, or DLP4710.

    The input frame rate is the rate at which an entire frame is projected. Over a single frame, each mirror many times to create the projected image and balance color and detail. This flipping would be an extrapolation of the video data being fed to the DLP chipset and would not necessarily be something that can be has a low level switch that your client seems to be seeking.

    There are many differences between the DLP9500 and DLP3310. The DLP9500 is primarily meant for larger display units while the  DPL3310 is designed to be more form-factor. Additionally, the DLP3310 is designed to use actuation technology in the system to meet the 1080p resolution while the DLP9500 has the 1080p resolution native to the DMD.

    I cannot comment on the pricing for the optical components as we do not sell these pieces. You may consider reaching out to one of our optical engine manufacturers listed here.

    In general, it would help to know the end goal we can try to point you in the right direction.

    Regards,

    Austin

  • 0 in reply to Austin Snyder
    TI__Mastermind 24705 points

    Hi Austin,

    Thank you for your response. Here are the details of our customer's application. 

    The application would be for choosing wavelengths of light to focus into a fiber bundle, with the light source being a "white" LED, dispersed off a grating onto the DMD. The use will be a home-built spectroscopy instrument. Our group has already made one of these instruments, and I'm looking to repeat it, but can't figure out which DMD they used previously. I know it was TI, and 768x1024, and that the mirrors can flip every 44 microseconds (μs). My primary concern is how many times per second the mirrors can flip, based on pre-loaded binary (1-bit) images.

    So, while the spec sheet for the DLP3310 states the mirror switching time is 10 μs, I can't necessarily tell them to switch every 10 μs?

    Regards,

    Danilo

  • 0 in reply to Danilo A.
    TI__Mastermind 22830 points

    Hello Danilo,

    The customer application is served by our Advance Light of Control chipset. Please recommend customer to review product lines from the following :

    https://www.ti.com/dlp-chip/advanced-light-control/high-speed-visible/products.html

    The combination of DLP controller along DMD defines the supported pattern rate. DMD mirror switching time alone can not be used for this purpose.

    Based on 44uS , the application required ~23 KHz 1-bit pattern rate. DLP9500 and DLP7000 DMD can be used for this application.

    regards,

    Vivek