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參數資料
| 型號： | ADV7181 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Multiformat SDTV Video Decoder |
| 中文描述： | 標清多格式視頻解碼器 |
| 文件頁數： | 77/96頁 |
| 文件大小： | 873K |
| 代理商： | ADV7181 |
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ADV7181B
Rev. 0 | Page 77 of 96
Bits
4
Subaddress
0x27
Register
Pixel Delay
Control
Bit Description
LTA[1:0]. Luma timing adjust allows
the user to specify a timing difference
between chroma and luma samples.
7
6
5
3
2
1
0
0
0
Comments
No Delay
Notes
CVBS mode
LTA[1:0] = 00b;
S-Video mode
LTA[1:0]= 01b,
YPrPb mode
LTA[1:0] = 01b
1
0
Luma 1 clk (37 nS) delayed
1
0
Luma 2 clk (74 nS) early
1
1
Luma 1 clk (37 nS) early
Reserved
CTA[2:0]. Chroma timing adjust
allows a specified timing difference
between the luma and chroma
samples
0
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
Set to Zero
Not valid setting
Chroma +2 pixels (early)
Chroma +1 pixel (early)
No delay
Chroma -1 pixel (late)
Chroma -2 pixels (late)
Chroma -3 pixels (late)
Not valid setting
Use values in LTA[1:0] and
CTA[2:0] for delaying
luma/chroma
LTA and CTA values
determined automatically
CVBS mode
CTA[2:0] = 011b
S-Video mode
CTA[2:0] = 101b
YPrPb mode
CTA[2:0] = 110b
AUTO_PDC_EN. Automatically
programs the LTA/CTA values so
that luma and chroma are aligned at
the output for all modes of
operation.
1
0
No Swapping
SWPC. Allows the Cr and Cb samples
to be swapped.
1
Swap the Cr and Cb O/P
samples
Update once per video
line
Update once per field
See
Swap_CR_CB_WB,
Addr 0x89
0x2B
0
PW_UPD. Peak white update
determines the rate of gain.
1
Peak white must be
enabled. See
LAGC[2:0]
Reserved
CKE. Color kill enable allows the
color kill function to be switched on
and off.
0
1
1
0
0
0
0
Set to default
Color kill disabled
Color kill enabled
For SECAM color kill,
threshold is set at
8%
See CKILLTHR[2:0]
Use CMG[11:0]
Based on color burst
Use LMG[11:0]
Blank level to sync
tip
0x2C
Misc Gain
Control
Reserved
CAGC[1:0]. Chroma automatic gain
control selects the basic mode of
operation for the AGC in the chroma
path.
1
0
0
0
0
0
1
1
1
0
0
1
1
0
1
0
1
Set to default
Manual fixed gain
Use luma gain for chroma
Automatic gain
Freeze chroma gain
Set to 1
Manual fixed gain
AGC no override through
peak white. Man IRE
control.
AGC auto-override
through peak white. Man
IRE control.
AGC no override through
peak white. Auto IRE
control.
AGC auto-override through
peak white. Auto IRE
control.
AGC active video with
peak white
AGC active video with
average video
Freeze gain
Set to 1
Reserved
LAGC[2:0]. Luma automatic gain
control selects the mode of
operation for the gain control in the
luma path.
0
1
0
Blank level to sync
tip
0
1
1
Blank level to sync
tip
1
0
0
Blank level to sync
tip
1
0
1
1
1
0
1
1
1
1
AGC Mode
Control
Reserved
相關PDF資料 |
PDF描述 |
|---|---|
| ADV7181B | Multiformat SDTV Video Decoder |
| ADV7181BBCPZ | Multiformat SDTV Video Decoder |
| ADV7181BBSTZ | Multiformat SDTV Video Decoder |
| ADV7181BCP | Multiformat SDTV Video Decoder |
| ADV7181BST | Multiformat SDTV Video Decoder |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADV7181B | 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat SDTV Video Decoder |
| ADV7181BBCPZ | 制造商:Analog Devices 功能描述:Video Decoder 3ADC 9-Bit 64-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:ADV718XB DECODER FAMILY UPDATES - Bulk 制造商:Analog Devices 功能描述:IC VIDEO ENCODER |
| ADV7181BBSTZ | 制造商:Analog Devices 功能描述:Video Decoder 3ADC 9-Bit 64-Pin LQFP 制造商:Analog Devices 功能描述:IC VIDEO ENCODER |
| ADV7181BCP | 制造商:Analog Devices 功能描述:Video Decoder 3ADC 9-Bit 64-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:10BIT NTSC/PAL/SECAM VIDEO DECODER I.C. - Bulk |
| ADV7181BCPZ | 制造商:Analog Devices 功能描述: |
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