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| 型號： | ADV7183BKSTZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 26/100頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC VIDEO DECODER NTSC 80-LQFP |
| 產(chǎn)品培訓(xùn)模塊： | Interfacing AV Converters to Blackfin Processors |
| 標準包裝： | 1 |
| 類型： | 視頻解碼器 |
| 應(yīng)用： | 投影儀，錄音機，安全 |
| 電壓 - 電源，模擬： | 3.15 V ~ 3.45 V |
| 電壓 - 電源，數(shù)字： | 1.65 V ~ 2 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 80-LQFP |
| 供應(yīng)商設(shè)備封裝： | 80-LQFP（14x14） |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 788 (CN2011-ZH PDF) |
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ADV7183B
Rev. B | Page 31 of 100
Table 33. AGC Modes
Input Video Type
Luma Gain
Chroma Gain
Any
Manual gain luma
Manual gain chroma
Dependent on color burst amplitude
Dependent on horizontal sync depth
Taken from luma path
Dependent on color burst amplitude
CVBS
Peak white
Taken from luma path
Dependent on color burst amplitude
Dependent on horizontal sync depth
Taken from luma path
Dependent on color burst amplitude
Y/C
Peak white
Taken from luma path
YPrPb
Dependent on horizontal sync depth
Taken from luma path
Luma Gain
LAGC[2:0] Luma Automatic Gain Control,
Address 0x2C[7:0]
The luma automatic gain control mode bits select the mode of
operation for the gain control in the luma path.
ADI internal parameters are available to customize the peak
white gain control. Contact ADI sales for more information.
Table 34. LAGC Function
LAGC[2:0]
Description
000
Manual fixed gain (use LMG[11:0])
001
AGC (blank level to sync tip); peak white
algorithm off
010 (default)
AGC (blank level to sync tip); peak white
algorithm on
011
Reserved
100
Reserved
101
Reserved
110
Reserved
111
Freeze gain
LAGT[1:0] Luma Automatic Gain Timing,
Address 0x2F[7:6]
The luma automatic gain timing register allows the user to
influence the tracking speed of the luminance automatic gain
control. Note that this register has an effect only if the
LAGC[2:0] register is set to 001, 010, 011, or 100 (automatic
gain control modes).
If peak white AGC is enabled and active (see the
191H
STATUS_1[7:0] Address 0x10[7:0] section), the actual gain
update speed is dictated by the peak white AGC loop and, as a
result, the LAGT settings have no effect. As soon as the part
leaves peak white AGC, LAGT becomes relevant again.
The update speed for the peak white algorithm can be custom-
ized by the use of internal parameters. Contact ADI sales for
more information.
Table 35. LAGT Function
LAGT[1:0]
Description
00
Slow (TC = 2 sec)
01
Medium (TC = 1 sec)
10
Fast (TC = 0.2 sec)
11 (default)
Adaptive
LG[11:0] Luma Gain, Address 0x2F[3:0];
Address 0x30[7:0]; LMG[11:0] Luma Manual Gain,
Address 0x2F[3:0]; Address 0x30[7:0]
Luma gain[11:0] is a dual-function register. If written to, a
desired manual luma gain can be programmed. This gain
becomes active if the LAGC[2:0] mode is switched to manual
fixed gain. Equation 1 shows how to calculate a desired gain.
If read back, this register returns the current gain value.
Depending on the setting in the LAGC[2:0] bits, one of these
gain values is returned
Luma manual gain value (LAGC[2:0] set to luma manual
gain mode)
Luma automatic gain value (LAGC[2:0] set to any of the
automatic modes)
Table 36. LG/LMG Function
LG[11:0]/LMG[11:0]
Read/Write
Description
LMG[11:0] = X
Write
Manual gain for luma
path
LG[11:0]
Read
Actually used gain
(
)
2
...
0
2048
4095
0
_
=
≤
<
=
LG
Gain
Luma
(1)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADV7183KST | 制造商:Analog Devices 功能描述:Video Decoder 2ADC 10-Bit 80-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:VIDEO DECODER I.C. - Bulk |
| ADV7184 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat SDTV Video Decoder with Fast Switch Overlay Support |
| ADV7184BSTZ | 功能描述:IC DECODER VID SDTV MULTI 80LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉(zhuǎn)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(yīng)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(yīng)商設(shè)備封裝:模塊 包裝:散裝 其它名稱:Q4645799 |
| ADV7185 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Professional NTSC/PAL Video Decoder with 10-Bit CCIR656 Output |
| ADV7185KST | 制造商:AD 制造商全稱:Analog Devices 功能描述:Professional NTSC/PAL Video Decoder with 10-Bit CCIR656 Output |
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