adv7189b Analog Devices, Inc., adv7189b Datasheet - Page 36

• Manufacturer Part Number: adv7189b
• Description: Multiformat Sdtv Video Decoder
• Manufacturer: Analog Devices, Inc.

ADV7189B
CCMN[2:0] Chroma Comb Mode NTSC, Address 0x38[5:3]
Table 46. CCMN Function
CCMN[2:0]
0xx (default)
100
101
110
111
YCMN[2:0] Luma Comb Mode NTSC, Address 0x38[2:0]
Table 47.YCMN Function
YCMN[2:0]
0xx (default)
100
101
110
111
PAL Comb Filter Settings
Used for PAL-B/G/H/I/D, PAL-M, PAL-Combinational N, PAL-
60, and NTSC443 CVBS inputs.
PSFSEL[1:0] Split Filter Selection PAL, Address 0x19[1:0]
The PSFSEL[1:0] control selects how much of the overall signal
bandwidth is fed to the combs. A wide split filter selection
eliminates dot crawl, but shows imperfections on diagonal lines.
The opposite is true for selecting a narrow bandwidth split filter.
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).
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
Rev. B | Page 36 of 104
Table 48. PSFSEL Function
PSFSEL[1:0]
00
01 (default)
10
11
Configuration
Adaptive 3-line chroma comb for CTAPSN = 01.
Adaptive 4-line chroma comb for CTAPSN = 10.
Adaptive 5-line chroma comb for CTAPSN = 11.
Fixed 2-line chroma comb for CTAPSN = 01.
Fixed 3-line chroma comb for CTAPSN = 10.
Fixed 4-line chroma comb for CTAPSN = 11.
Fixed 3-line chroma comb for CTAPSN = 01.
Fixed 4-line chroma comb for CTAPSN = 10.
Fixed 5-line chroma comb for CTAPSN = 11.
Fixed 2-line chroma comb for CTAPSN = 01.
Fixed 3-line chroma comb for CTAPSN = 10.
Fixed 4-line chroma comb for CTAPSN = 11.
Configuration
Adaptive 3-line (3 taps) luma comb.
Use low-pass/notch filter; see the
Fixed 2-line (2 taps) luma comb.
Fixed 3-line (3 taps) luma comb.
Fixed 2-line (2 taps) luma comb.
Description
Narrow
Medium
Wide
Widest
Y -Shaping Filter section.
1 9 5 H