adv7181b Analog Devices, Inc., adv7181b Datasheet - Page 35

• Manufacturer Part Number: adv7181b
• Description: Multiformat Sdtv Video Decoder
• Manufacturer: Analog Devices, Inc.

CTAPSP[1:0] Chroma Comb Taps PAL, Address 0x39[7:6]
Table 48. CTAPSP Function
CTAPSP[1:0]
00
01
10
11 (default)
CCMP[2:0] Chroma Comb Mode PAL, Address 0x39[5:3]
Table 49. CCMP Function
CCMP[2:0]
0xx (default)
100
101
110
111
YCMP[2:0] Luma Comb Mode PAL, Address 0x39[2:0]
Table 50. YCMP Function
YCMP[2:0]
0xx (default)
100
101
110
111
Description
Adaptive comb mode
Disable chroma comb
Fixed chroma comb (top lines of line memory)
Fixed chroma comb (all lines of line memory)
Fixed chroma comb (bottom lines of line memory)
Description
Adaptive comb mode.
Disable luma comb
Fixed luma comb (top lines of line memory)
Fixed luma comb (all lines of line memory)
Fixed luma comb (bottom lines of line memory)
Description
Do not use
PAL chroma comb adapts 5 lines (3 taps) to
3 lines (2 taps); cancels cross luma only
PAL chroma comb adapts 5 lines (5 taps) to
3 lines (3 taps); cancels cross luma and hue error less well
PAL chroma comb adapts 5 lines (5 taps) to
4 lines (4 taps); cancels cross luma and hue error well
Rev. B | Page 35 of 100
Configuration
Adaptive 5 lines (3 taps) luma comb
Use low-pass/notch filter; see the Y-Shaping Filter section
Fixed 3 lines (2 taps) luma comb
Fixed 5 lines (3 taps) luma comb
Fixed 3 lines (2 taps) luma comb
Configuration
Adaptive 3-line chroma comb for CTAPSP = 01
Adaptive 4-line chroma comb for CTAPSP = 10
Adaptive 5-line chroma comb for CTAPSP = 11
Fixed 2-line chroma comb for CTAPSP = 01
Fixed 3-line chroma comb for CTAPSP = 10
Fixed 4-line chroma comb for CTAPSP = 11
Fixed 3-line chroma comb for CTAPSP = 01
Fixed 4-line chroma comb for CTAPSP = 10
Fixed 5-line chroma comb for CTAPSP = 11
Fixed 2-line chroma comb for CTAPSP = 01
Fixed 3-line chroma comb for CTAPSP = 10
Fixed 4-line chroma comb for CTAPSP = 11
ADV7181B