DLP4500: DLP solution with fast mirror switching

Hi Matusan,

Unfortunately what you are requesting isn't possible with current DLP technology. A frame period of 10us is 100,000Hz, which is much faster than any DMD is capable of at this point.

For the type of high speed design you're looking at, you'd need to be looking at the Discovery 4100 platform which has a highly flexible controller capable of up to 32,000 frames per second:
www.ti.com/.../endequipmentproductfolder.tsp

I hope that is clear. Please let me know if you have further questions.
-Paul

Hi Paul,

 

Thank you very much for your kindness.

I really appreciate your help.

 

Our customer sent us some additional questions.

 

They understand "a frame period of 10us isn't possible with current DLP technology".

But they have still investigated faster mirror switching way with DLP.

 

Questions:

 - In single block mode, the one block mirror changing period is 1/16 of the all mirror changing period.

 - The DLP solution which supports single block mode is  Discovery 4100 platform only.

 - The all mirror(1024×768) changing period of DLP7000 which is used on Discovery 4100 platform is 1/32552[sec] (= about 30.75[us])

   from the datasheet below:DLPS026E (8.3.1 DLPC410 Chipset DMD Features).

   http://www.ti.com/lit/ds/symlink/dlp7000.pdf

 - In single block mode, the one block mirror changing period of DLP7000 is about 1.92[us] (= 1/16 of 1/32552[sec])

 

Is this understanding correct?

 

If there is the way to realize "single block mode" with other DLP solution, please also tell us.

 

Best regards,

 

Hi Paul,

Do you have any comment?

Our customer is waiting for the answer.

So I'd like to answer to the customer as below. 
- In single block mode, the one block mirror changing period is 1/16 of the all mirror changing period.
- The DLP solution which supports single block mode is Discovery 4100 platform only.
- The all mirror(1024×768) changing period of DLP7000 which is used on Discovery 4100 platform is 1/32552[sec] (= about 30.75[us])
from the datasheet below:DLPS026E (8.3.1 DLPC410 Chipset DMD Features).
www.ti.com/.../dlp7000.pdf
- In single block mode, the one block mirror changing period of DLP7000 is about 1.92[us] (= 1/16 of 1/32552[sec])

If you have some comment/recommendation, please tell us.
 
Best regards,

Hello Matusan,

Paul has asked me to comment on this post since I am most familiar with the DLPC410 platform.

At this time only the DLPC410, DLPC900 and DLPC910 chipset solutions can load single blocks.  Other controllers for Advanced Light Control operate only globally, that is the entire array must be refreshed every time.

The DLPC900 solutions are lower cost and offer block loading also and have good speeds, but they are still not as fast as the DLPC410 and DLPC910 chipsets.

I hope this helps their understanding.

FIzix

Hi,
 
Thank you very much for your kindness.
I really appreciate your help.

We would like to add DLPC900 and DLPC910 for the answer to the customer from your comment.
So, we checked the datasheets.
But we cannot find proper description of single block mode on the datasheet of DLPC900.
(We can find some description of single block mode on the datasheet of DLPC910 and DLPC410).

We would appreciate if you tell us the proper document for single block mode of DLPC900.

Best regards,

Hello Matusan,

For the DLPC900 this is done from the GUI/API.  Please see the DLP® LightCrafter™ 6500 and 9000 Evaluation Module (EVM) User's Guide:

http://www.ti.com/lit/ug/dlpu028c/dlpu028c.pdf    -- § 3.6.5 on page 38.

There are also API methods for this function also in the DLPC900 Programmers Guide: 

http://www.ti.com/lit/ug/dlpu018c/dlpu018c.pdf  -- § 2.4.1.3 on page 42.

I hope this helps,

Fizix

Hi,

Thank you for your kindness.
This information is very helpful!


Best regards,