AK8858 Datasheet, PDF (56/96 Pages) Asahi Kasei Microsystems – PS/SD Multi Format Video Decoder

[AK8858]
[7.29.5] Sharpness adjustment
Sharpness adjustment is performed on the luminance signal. The filter characteristic is shown in the following
diagram. A sharp image can be obtained by selection of the filter with the appropriate characteristics.
SHARP[1:0]-bit
SHCORE[1:0]-bit
Y Signal (before)
Filter
Coring
Y Signal (after)
Delay
Settings for filter characteristics selection
SHARP[1:0]-bit
Filter characteristics
00
No filtering
01
Min
10
Middle
11
Max
Sub Address: 0x14 [1:0]
Notes
Filter disabled
Settings for coring level after sharpness filtering
SHCORE[1:0]-bit
Coring level (LSB)
[00]
No coring
[01]
±1LSB
[10]
±2LSB
[11]
±3LSB
Notes
Sub Address: 0x14 [3:2]
Settings apply only to
filtered signal.
MS1230-E-00
- 56 -
2010/9