DLPU048E August 2016 – July 2024
This section defines the input video delay and command processing delay for illumination bins while displaying external video.
The DLPC230-Q1 has a 1 frame processing delay between external input video data and displayed data.
The DLPC230-Q1 has a 3 frame delay between receiving an illumination bin index and applying the illumination bin. This delay only applies if the Illumination Transition Rate is set to 0, otherwise the transition rate will further delay the application of the illumination bin. Additionally, this delay only applies while displaying external video or a built-in test pattern. Displaying a splash image will extend the time taken to apply an illumination bin due to the time required to reload the splash image from flash.
Figure 5-19 assumes that the illumination bin command is received during a specific window of time within the video frame. The write illumination bin command transaction must be complete within a specific time frame relative to the VSYNC active edge to ensure a consistent 3 frame delay. Table 5-3 defines these constraints. If the command is received outside of that time frame the illumination bin will still be applied, but the exact frame delay becomes uncertain (2-4 frames).
PARAMETER | MIN | UNIT | |
---|---|---|---|
tsync_open | Minimum time between VSYNC active edge (polarity-dependent) and illumination bin command transaction completion. | 4 | ms |
tsync_close | Minimum time between illumination bin command transaction completion and next VSYNC active edge (polarity-dependent). | 1 | ms |