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DLP670S: how to calculate frame rate

Part Number: DLP670S
Other Parts Discussed in Thread: DLPC900,

I just stepped into the world of DLP/DMD and I am currently studying DLPC900+DLP670S. I have the following 2 questions


1. The DLP670S supports Pixel data rate (Max) 41.3 (Gbps). How do I calculate the projected Frame rate? [41.3G/(2716 x 1600)/(3X8)=39.5Hz] Is this correct?

    But DLPC900 can support video mode frame up to 120Hz,Is there a calculation error?

2.1-bit pre-stored pattern mode  (8-bit pre-stored pattern mode with illum modulation (16-bit pre-stored pattern mode with illum modulation
What do the above three modes mean? Are there any relevant documents that can be read or explained?

Many Thanks