EVAL-ADV7183BEB View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'EVAL-ADV7183BEB' PDF : 104 Pages View PDF
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.
Table 85. PSFSEL Function
PSFSEL[1:0]
00
01 (default)
10
11
Description
Narrow
Medium
Wide
Widest
ADV7183A
CTAPSP[1:0] Chroma Comb Taps PAL, Address 0x39 [7:6]
Table 86. CTAPSP Function
CTAPSP[1:0] Description
00
Do not use.
01
PAL chroma comb adapts 5 lines (3 taps) to
3 lines (2 taps); cancels cross luma only.
10
PAL chroma comb adapts 5 lines (5 taps) to
3 lines (3 taps); cancels cross luma and hue error
less well.
11 (default)
PAL chroma comb adapts 5 lines (5 taps) to
4 lines (4 taps); cancels cross luma and hue error
well.
CCMP[2:0] Chroma Comb Mode PAL, Address 0x39 [5:3]
Table 87. CCMP Function
CCMP[2:0] Description
0xx (default) Adaptive comb mode.
100
Disable chroma comb.
101
Fixed chroma comb (top lines of line memory).
110
Fixed chroma comb (all lines of line memory).
111
Fixed chroma comb (bottom lines of line memory).
YCMP[2:0] Luma Comb Mode PAL, Address 0x39 [2:0]
Table 88. YCMP Function
YCMP[2:0] Description
0xx (default) Adaptive comb mode.
100
Disable luma comb.
101
Fixed luma comb (top lines of line memory).
110
Fixed luma comb (all lines of line memory).
111
Fixed luma comb (bottom lines of line memory).
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.
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.
Rev. B | Page 39 of 104
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