参数资料
型号: ADV7183BBSTZ
厂商: Analog Devices Inc
文件页数: 31/100页
文件大小: 0K
描述: IC VIDEO DECODER NTSC 80-LQFP
产品培训模块: Interfacing AV Converters to Blackfin Processors
标准包装: 1
类型: 视频解码器
应用: 投影仪,录音机,安全
电压 - 电源,模拟: 3.15 V ~ 3.45 V
电压 - 电源,数字: 1.65 V ~ 2 V
安装类型: 表面贴装
封装/外壳: 80-LQFP
供应商设备封装: 80-LQFP(14x14)
包装: 托盘
产品目录页面: 788 (CN2011-ZH PDF)
ADV7183B
Rev. B | Page 36 of 100
PAL Comb Filter Settings
Used for PAL-B/G/H/I/D, PAL-M, PAL-Combination N,
PAL60 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 48. PSFSEL Function
PSFSEL[1:0]
Description
00
Narrow
01 (default)
Medium
10
Wide
11
Widest
CTAPSP[1:0] Chroma Comb Taps PAL, Address 0x39[7:6]
Table 49. 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 50. CCMP Function
CCMP[2:0]
Description
Configuration
Adaptive 3-line chroma comb for CTAPSP = 01
Adaptive 4-line chroma comb for CTAPSP = 10
0xx (default)
Adaptive comb mode
Adaptive 5-line chroma comb for CTAPSP = 11
100
Disable chroma comb
Fixed 2-line chroma comb for CTAPSP = 01
Fixed 3-line chroma comb for CTAPSP = 10
101
Fixed chroma comb (top lines of line memory)
Fixed 4-line chroma comb for CTAPSP = 11
Fixed 3-line chroma comb for CTAPSP = 01
Fixed 4-line chroma comb for CTAPSP = 10
110
Fixed chroma comb (all lines of line memory)
Fixed 5-line chroma comb for CTAPSP = 11
Fixed 2-line chroma comb for CTAPSP = 01
Fixed 3-line chroma comb for CTAPSP = 10
111
Fixed chroma comb (bottom lines of line memory)
Fixed 4-line chroma comb for CTAPSP = 11
YCMP[2:0] Luma Comb Mode PAL, Address 0x39[2:0]
Table 51. YCMP Function
YCMP[2:0]
Description
Configuration
0xx (default)
Adaptive comb mode
Adaptive 5 lines (3 taps) luma comb
100
Disable luma comb
Use low-pass/notch filter; see the
199H
Y-Shaping Filter section
101
Fixed luma comb (top lines of line memory)
Fixed 3 lines (2 taps) luma comb
110
Fixed luma comb (all lines of line memory)
Fixed 5 lines (3 taps) luma comb
111
Fixed luma comb (bottom lines of line memory)
Fixed 3 lines (2 taps) luma comb
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