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參數(shù)資料
| 型號： | ADV7188 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Multiformat SDTV Video Decoder with Fast Switch Overlay Support |
| 中文描述： | 標清多格式視頻解碼器支持快速開關重疊 |
| 文件頁數(shù)： | 82/112頁 |
| 文件大?。?/td> | 943K |
| 代理商： | ADV7188 |
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ADV7188
Address
0x2C
Rev. 0 | Page 82 of 112
Register
AGC Mode Control
Bit Description
CAGC[1:0]. Chroma automatic gain control
selects the basic mode of operation for the
AGC in the chroma path.
Bit
Notes
Use CMG[11:0]
Based on color burst
Use LMG[11:0]
Blank level to sync tip
Blank level to sync tip
CAGC[1:0] settings decide in which
mode CMG[11:0] operates
7 6 5 4 3 2 1 0 Comments
1 1
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
1
0 1 0 0
0 0 Manual fixed gain
0 1 Use luma gain for chroma
1 0 Automatic gain
1 1 Freeze chroma gain
Set to 1
Manual fixed gain
AGC Peak white algorithm off
AGC Peak white algorithm on
Reserved
Reserved
Reserved
Reserved
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.
Reserved.
CMG[11:8]. Chroma manual gain can be used
to program a desired manual chroma gain.
Reading back from this register in AGC mode
gives the current gain.
Reserved.
CAGT[1:0]. Chroma automatic gain timing
allows adjustment of the chroma AGC
tracking speed.
0 0
0 1
1 0
1 1
0 0 0 0 0 0 0 0 CMG[11:0] = 750d; gain is 1 in
NTSC
CMG[11:0] = 741d; gain is 1 in PAL
x x x x LAGC[1:0] settings decide in which
mode LMG[11:0] operates
1 1
Set to 1
Slow (TC = 2 s)
Medium (TC = 1 s)
Fast (TC = 0.2 s)
Adaptive
Has an effect only if CAGC[1:0] is set to
auto gain (10)
0x2D
Chroma Gain
Control 1
0x2E
Chroma Gain
Control 2
CMG[7:0]. Chroma manual gain lower 8 bits.
See CMG[11:8] for description.
Min value is 0d (G = –60 dB)
Max value is 3750 (G = 5)
LMG[11:8]. Luma manual gain can be used to
program a desired manual chroma gain, or to
read back the actual gain value used.
Reserved.
LAGT[1:0]. Luma automatic gain timing
allows adjustment of the luma AGC tracking
speed.
0 0
0 1
1 0
1 1
x
x
1 1
x
x x x x x LMG[11:0] = 1128 dec; gain is 1 in
NTSC LMG[11:0] = 1222d; gain is 1
in PAL
Set to 1
Slow (TC = 2 s)
Medium (TC = 1 s)
Fast (TC = 0.2 s)
Adaptive
Only has an effect if LAGC[1:0] is set to
auto gain (001, 010, 011,or 100)
0x2F
Luma Gain Control 1
0x30
Luma Gain Control 2 LMG[7:0]. Luma manual gain can be used to
program a desired manual chroma gain or
read back the actual used gain value.
Min value NTSC 1024 (G = 0.90) PAL (G
= 0.84)
Max value NTSC 4095 (G = 3.63),
PAL = 4095 (G = 3.35)
HSE = HSYNC end
HSB = HSYNC begin
Reserved.
HVSTIM. Selects where within a line of video
the VS signal is asserted.
0
0
1
0 1 0 Set to default
Start of line relative to HSE
Start of line relative to HSB
EAV/SAV codes generated to suit
ADI encoders
Manual VS/Field position
controlled by Registers 0x32, 0x33,
and 0xE5–0xEA
Set to default
0 0 0 0 0 1 Set to default
0
VS goes high in the middle of the
line (even field)
1
VS changes state at the start of the
line (even field)
0
VS goes high in the middle of the
line (odd field)
1
VS changes state at the start of the
line (odd field)
0 0 0 1 0 0 Set to default
0
VS goes low in the middle of the
line (even field)
1
VS changes state at the start of the
line (even field)
0
VS goes low in the middle of the
line (odd field)
1
VS changes state at the start of the
line odd field
NEWAVMODE. Sets the EAV/SAV mode.
1
0x31
VS and FIELD
Control 1
Reserved.
Reserved.
0 0 0
NEWAVMODE bit must be set high.
VSBHE
0x32
VSYNC Field Control
2
VSBHO
Reserved.
VSEHE
NEWAVMODE bit must be set high.
0x33
VSYNC Field Control
3
VSEHO
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| ADV7189B | Multiformat SDTV Video Decoder |
| ADV7189BBSTZ268H | Multiformat SDTV Video Decoder |
| ADV7189BKSTZ10F | Multiformat SDTV Video Decoder |
| ADV7189 | Multiformat SDTV Video Decoder |
| ADV7189KST | Multiformat SDTV Video Decoder |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ADV7188BSTZ | 功能描述:IC DECODER VID MULTIFORM 80LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標準包裝:1 系列:- 類型:編碼器 應用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應商設備封裝:模塊 包裝:散裝 其它名稱:Q4645799 |
| ADV7189 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat SDTV Video Decoder |
| ADV7189B | 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat SDTV Video Decoder |
| ADV7189BBSTZ | 功能描述:IC VIDEO DECODER SDTV 80-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標準包裝:1 系列:- 類型:編碼器 應用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應商設備封裝:模塊 包裝:散裝 其它名稱:Q4645799 |
| ADV7189BBSTZ268H | 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat SDTV Video Decoder |
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