参数资料
型号: ADV7189BBSTZ
厂商: Analog Devices Inc
文件页数: 79/104页
文件大小: 0K
描述: IC VIDEO DECODER SDTV 80-LQFP
标准包装: 1
类型: 视频解码器
应用: 机顶盒,视频播放器,录音机
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
ADV7189B
Rev. B | Page 76 of 104
Bits
Subaddress
Register
Bit Description
7
6
5
4
3
2
1
0
Comments
Notes
Reserved
0
x
Set to default
0
Slow (TC = 1 sec)
0
1
Medium (TC = 0.5 sec)
1
0
Fast (TC = 0.1 sec)
DCT[1:0]. Digital clamp timing
determines the time constant of
the digital fine clamp circuitry.
1
TC dependent on video
0x15
Digital
Clamp
Control 1
Reserved
0
Set to default
0
Auto wide notch for poor
quality sources or wide-
band filter with Comb for
good quality input
0x17
0
1
Auto narrow notch for
poor quality sources or
wideband filter with comb
for good quality input
Decoder selects
optimum Y-shaping
filter depending on
CVBS quality.
0
1
0
SVHS 1
Shaping
Filter
Control
0
1
SVHS 2
0
1
0
SVHS 3
0
1
0
1
SVHS 4
0
1
0
SVHS 5
0
1
SVHS 6
0
1
0
SVHS 7
0
1
0
1
SVHS 8
0
1
0
1
0
SVHS 9
0
1
0
1
SVHS 10
0
1
0
SVHS 11
0
1
0
1
SVHS 12
0
1
0
SVHS 13
0
1
SVHS 14
1
0
SVHS 15
1
0
1
SVHS 16
1
0
1
0
SVHS 17
1
0
1
SVHS 18 (CCIR601)
1
0
1
0
PAL NN1
1
0
1
0
1
PAL NN2
1
0
1
0
PAL NN3
1
0
1
PAL WN 1
1
0
PAL WN 2
1
0
1
NTSC NN1
1
0
1
0
NTSC NN2
1
0
1
NTSC NN3
1
0
NTSC WN1
1
0
1
NTSC WN2
1
0
NTSC WN3
YSFM[4:0]. Selects Y-Shaping Filter
mode when in CVBS only mode.
Allows the user to select a wide
range of low-pass and notch filters.
If either auto mode is selected, the
decoder selects the optimum Y
filter depending on the CVBS video
source quality (good vs. bad).
1
Reserved
If one of these modes
is selected, the
decoder does not
change filter modes.
Depending on video
quality, a fixed filter
response (the one
selected) is used for
good and bad quality
video.
0
Auto selection 15 MHz
0
1
Auto selection 2.17 MHz
Automatically selects
a C filter for the
specified bandwidth.
0
1
0
SH1
0
1
SH2
1
0
SH3
1
0
1
SH4
1
0
SH5
CSFM[2:0].
C-Shaping Filter mode allows the
selection from a range of low-pass
chrominance filters, SH1to SH5, and
wideband mode.
1
Wideband mode
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