DS_S1D2502A01 Datasheet, PDF (46/57 Pages) Samsung semiconductor – VIDEO AMP MERGED OSD PROCESSOR FOR MONITORS

Preliminary
VIDEO AMP MERGED OSD PROCESSOR FOR MONITORS
S1D2502A01
• Fade-In/Fade-Out
Fade-in/fade-out is displaying from the center to the outside in units of font when OSD display is on/off. Each
font's display is turned on/of without regard to size, in units of (12 × 18) dot.
Also, to control the fade in/out time, the V_PULSE's 1/4, 1/8 clocks are used for counting. In other words, as
control data, it takes 0.5sec if the frame control register - 0's 'FdeT' bit is 1, and 1sec if 0. If it is difficult to
visualize the fade-in / fade-out feature with the explanation and diagrams in this document, write the control
data to the OSD IC and verify the IC's operations. Like the scrolling feature, fade in/out can only be verified
when OSD is enabled/disabled.
Fade in/out
Unit: Font
6CK_Time
row Space
6CK_Time + 3CK_Time
Display at 9CK_Time
Figure 21. Fade-In/Fade-Out
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