DLPC900 datasheet(36/72 Pages) TI1

36 / 72 page

DLPC900

DLPS037A – OCTOBER 2014 – REVISED AUGUST 2015

www.ti.com

7.3 Feature Description

The DLPC900 controller takes as input 16-, 20-, or 24-bit RGB data at up to 120-Hz frame rate. For example, a

120Hz 24-bit frame is composed of three colors (red, green, and blue) with each color equally divided in the 120-

Hz frame rate. Thus, each color has a 2.78-ms time slot allocated. Because each color has an 8-bit depth, each

color time slot is further divided into bit-planes. A bit-plane is the 2-dimensional arrangement of one-bit extracted

from all the pixels in the full color 2D image to implement dynamic depth (see Figure 13).

Figure 13. Bit Slices

The length of each bit-plane in the time slot is weighted by the corresponding power of two of its binary

representation. This provides a binary pulse-width modulation of the image. For example, a 24-bit RGB input has

three colors with 8-bit depth each. Each color time slot is divided into eight bit-planes, with the sum of the weight

of all bit planes in the time slot equal to 256. See Figure 14 for an illustration of this partition of the bits in a

frame.

Figure 14. Bit Partition in a Frame for an 8-Bit Color

Submit Documentation Feedback

Product Folder Links: DLPC900

DLPC900 Datasheet(PDF) 36 Page - Texas Instruments