- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄375269 > ADV7184BSTZ (ANALOG DEVICES INC) Multiformat SDTV Video Decoder with Fast Switch Overlay Support PDF資料下載
參數(shù)資料
| 型號： | ADV7184BSTZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 顏色信號轉(zhuǎn)換 |
| 英文描述： | Multiformat SDTV Video Decoder with Fast Switch Overlay Support |
| 中文描述： | COLOR SIGNAL DECODER, PQFP80 |
| 封裝： | LEAD FREE, MS-026BEC, LQFP-80 |
| 文件頁數(shù)： | 17/108頁 |
| 文件大小： | 925K |
| 代理商： | ADV7184BSTZ |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁當(dāng)前第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁
ADV7184
Fast Blank Edge Shaping
FB_EDGE_SHAPE[2:0], Address 0xEF [2:0]
To improve the picture transition for high speed fast blank
switching, an edge shape mode is available on the ADV7184.
Depending on the format of the RGB inputs, it may be
advantageous to apply this scheme to different degrees. The
levels are selected via the FB_EDGE_SHAPE[2:0] bits. Users are
advised to try each of the settings and select the setting that is
most visually pleasing in their system.
Table 13. FB_EDGE_SHAPE[2:0] Function
FB_EDGE_SHAPE[2:0]
000
001
010 (default)
011
100
101 to 111
Contrast Reduction
For overlay applications, text can be more readable if the
contrast of the video directly behind the text is reduced. To
enable the definition of a window of reduced contrast behind
inserted text, the signal applied to the FB pin can be interpreted
as a tri-level signal, as shown in Figure 10.
Rev. 0 | Page 17 of 108
Description
No Edge Shaping.
Level 1 Edge Shaping.
Level 2 Edge Shaping.
Level 3 Edge Shaping.
Level 4 Edge Shaping.
Not Valid.
CVBS SOURCE
100%
CVBS SOURCE
50% CONTRAST
RGB SOURCE
100%
SANDCASTLE
0
Figure 10. Fast Blank Signal Representation with
Contrast Reduction Enabled
Contrast Reduction Enable
CNTR_ENABLE, Address 0xEF [3]
This register enables the contrast reduction feature and changes
the meaning of the signal applied to the FB pin.
0 (default)—The contrast reduction feature is disabled and the
fast blank signal is interpreted as a bi-level signal.
1—The contrast reduction feature is enabled and the fast blank
signal is interpreted as a tri-level signal.
Contrast Mode
CNTR_MODE[1:0], Address 0xF1 [3:2]
The contrast level in the selected contrast reduction box is
selected using the CNTR_MODE[1:0] bits.
Table 14. CNTR_MODE[1:0] Function
CNTR_MODE[1:0],
00 (default)
01
10
11
Fast Blank and Contrast Reduction Programmable
Thresholds
FB_LEVEL[1:0], Address 0xF1 [5:4]
Controls the reference level for the fast blank comparator.
Description
25%.
50%.
75%.
100%.
CNTR_LEVEL[1:0], Address 0xF1 [7:6]
Controls the reference level for the contrast reduction
comparator.
The internal fast-blank and contrast-reduction signals are
resolved from the tri-level FB signal using two comparators,
as shown in Figure 11. To facilitate compliance with different
input level standards, the reference level to these comparators is
programmable under the control of FB_LEVEL[1:0] and
CNTR_LEVEL[1:0]. The resulting thresholds are given in
Table 15.
–
+
PROGRAMMABLE
THRESHOLDS
–
+
CONTRAST
REDUCTION
C
FAST BLANK
COMPARATOR
FAST BLANK
FB PIN
C
C
F
0
Figure 11. Fast Blank and Contrast Reduction Programmable Threshold
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADV7188 | Multiformat SDTV Video Decoder with Fast Switch Overlay Support |
| ADV7189B | Multiformat SDTV Video Decoder |
| ADV7189BBSTZ268H | Multiformat SDTV Video Decoder |
| ADV7189BKSTZ10F | Multiformat SDTV Video Decoder |
| ADV7189 | Multiformat SDTV Video Decoder |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| ADV7186 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Video Decoder and Display Processor |
| ADV7186BBCZ | 功能描述:IC VIDEO DECODER 196CSPBGA RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
| ADV7186BBCZ-RL | 功能描述:IC VIDEO DECODER 196CSPBGA RoHS:是 類別:集成電路 (IC) >> 線性 - 視頻處理 系列:- 產(chǎn)品變化通告:Product Discontinuation 07/Mar/2011 標(biāo)準(zhǔn)包裝:3,000 系列:OMNITUNE™ 類型:調(diào)諧器 應(yīng)用:移動電話，手機(jī)，視頻顯示器 安裝類型:表面貼裝 封裝/外殼:65-WFBGA 供應(yīng)商設(shè)備封裝:PG-WFSGA-65 包裝:帶卷 (TR) 其它名稱:SP000365064 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。