ADV7181 AD [Analog Devices], ADV7181 Datasheet - Page 80

• Manufacturer Part Number: ADV7181
• Description: Multiformat SDTV Video Decoder
• Manufacturer: AD [Analog Devices]

ADV7181B
Subaddress
0x38
Register
NTSC
Comb
Control
Bit Description
YCMN[2:0]. Luma
Comb Mode, NTSC.
CCMN[2:0]. Chroma
Comb Mode, NTSC.
CTAPSN[1:0]. Chroma
Comb Taps, NTSC.
Rev. 0 | Page 80 of 96
7 6
0 0
0 1
1 0
1 1
5
0
1
1
1
1
4 3
0 0
0 0
0 1
1 0
1 1
Bits
2
0
1
1
1
1
1
0
0
0
1
1
0
0
0
1
0
1
Comments
Adaptive 3-line, 3-tap luma
Use low-pass notch
Fixed luma comb (2-line)
Fixed luma comb (3-Line)
Fixed luma comb (2-line)
3-line adaptive for
CTAPSN = 01
4-line adaptive for
CTAPSN = 10
5-line adaptive for
CTAPSN = 11
Disable chroma comb
Fixed 2-line for
CTAPSN = 01
Fixed 3-line for
CTAPSN = 10
Fixed 4-line for
CTAPSN = 11
Fixed 3-line for
CTAPSN = 01
Fixed 4-line for
CTAPSN = 10
Fixed 5-line for
CTAPSN = 11
Fixed 2-line for
CTAPSN = 01
Fixed 3-line for
CTAPSN = 10
Fixed 4-line for
CTAPSN = 11
Adapts 3 lines – 2 lines
Not used
Adapts 5 lines – 3 lines
Adapts 5 lines – 4 lines
Notes
Top lines of memory
All lines of memory
Bottom lines of
memory
Top lines of memory
All lines of memory
Bottom lines of
memory