saa569x NXP Semiconductors, saa569x Datasheet - Page 81

• Manufacturer Part Number: saa569x
• Description: Enhanced Tv Microcontrollers With On-screen Display Osd
• Manufacturer: NXP Semiconductors

Philips Semiconductors
23.5.18 S
To improve the appearance of the display, the SAA567x;
SAA569x family of devices incorporates a smoothing
algorithm to insert extra pixels for all character sizes other
than normal size (see Fig.38). Smoothing is available in
both TXT and CC modes.
2002 May 06
handbook, full pagewidth
Enhanced TV microcontrollers with
On-Screen Display (OSD)
MOOTHING
normal size
double width smoothing on
double width smoothing off
Fig.38 Smoothing characters.
double height smoothing on
double height smoothing off
81
MMR 87E4H bit 4 enables smoothing in single page mode
and for Page A in double window mode. MMR 87E4H bit 5
enables smoothing for Page B in double window mode.
The appearance of special graphics characters and
fringed characters cannot be improved with the smoothing
algorithm.
double size smoothing on
double size smoothing off
SAA567x; SAA569x
Objective specification
GSA078