ADV7183BBSTZ Analog Devices Inc, ADV7183BBSTZ Datasheet - Page 35

• Manufacturer Part Number: ADV7183BBSTZ
• Description: IC,TV/VIDEO CIRCUIT,Color Decoder Circuit,CMOS,QFP,80PIN,PLASTIC
• Manufacturer: Analog Devices Inc
• Type: Video Decoderr

Specifications of ADV7183BBSTZ

• Applications: Projectors, Recorders, Security
• Voltage - Supply, Analog: 3.15 V ~ 3.45 V
• Voltage - Supply, Digital: 1.65 V ~ 2 V
• Mounting Type: Surface Mount
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

COMB FILTERS
The comb filters of the ADV7183B have been greatly improved
to automatically handle video of all types, standards, and levels
of quality. The NTSC and PAL configuration registers allow the
user to customize comb filter operation, depending on which
video standard is detected (by autodetection) or selected (by
manual programming). In addition to the bits listed in this
section, there are some other ADI internal controls; contact
ADI for more information.
NTSC Comb Filter Settings
Used for NTSC-M/J CVBS inputs.
NSFSEL[1:0] Split Filter Selection NTSC, Address
0x19[3:2]
The NSFSEL[1:0] control selects how much of the overall signal
bandwidth is fed to the combs. A narrow split filter selection
gives better performance on diagonal lines, but leaves more dot
crawl in the final output image; the opposite is true for selecting a
wide bandwidth split filter.
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
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)
Rev. B | Page 35 of 100
Table 44. NSFSEL Function
NSFSEL[1:0]
00 (default)
01
10
11
CTAPSN[1:0] Chroma Comb Taps NTSC, Address x38[7:6]
Table 45. CTAPSN Function
CTAPSN[1:0]
00
01
10 (default)
11
Use low-pass/notch filter; see the
Adaptive 3-line (3 taps) luma comb
Fixed 2-line (2 taps) luma comb
Fixed 3-line (3 taps) luma comb
Fixed 2-line (2 taps) luma comb
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
Do not use
NTSC chroma comb adapts 3 lines (3 taps) to
2 lines (2 taps)
NTSC chroma comb adapts 5 lines (5 taps) to
3 lines (3 taps)
NTSC chroma comb adapts 5 lines (5 taps) to
4 lines (4 taps)
Description
Description
Narrow
Medium
Medium
Wide
Y -Shaping Filter section
1 9 8 H
ADV7183B