- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄1901 > ADV7184BSTZ (Analog Devices Inc)IC DECODER VID SDTV MULTI 80LQFP PDF資料下載
參數(shù)資料
| 型號(hào)： | ADV7184BSTZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 42/112頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DECODER VID SDTV MULTI 80LQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類(lèi)型： | 視頻解碼器 |
| 應(yīng)用： | 投影儀，錄音機(jī)，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(lèi)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(pán) |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)當(dāng)前第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)
ADV7184
Rev. A | Page 35 of 112
The minimum supported amplitude of the input video is
determined by the ability of the ADV7184 to retrieve horizontal
and vertical timing and to lock to the color burst, if present.
GAIN OPERATION
The gain control within the ADV7184 is done on a purely
digital basis. The input ADCs support a 10-bit range, mapped
into a 1.6 V analog voltage range. Gain correction takes place
after the digitization in the form of a digital multiplier.
There are separate gain control units for luma and chroma data.
Both can operate independently of each other. The chroma unit,
however, can also take its gain value from the luma path.
This architecture is advantageous because, unlike the commonly
used programmable gain amplifier (PGA) placed in front of the
ADCs, the gain is completely independent of supply, temperature,
and process variations.
The possible AGC modes are summarized in Table 39.
It is possible to freeze the automatic gain control loops. This
causes the loops to stop updating and maintains the AGC-
determined gain that is active at the time of the freeze until the
loop is either unfrozen or the gain mode of operation is changed.
As shown in Figure 21, the ADV7184 can decode a video signal
as long as it fits into the ADC window.
The two components of decoding a video signal are the amplitude
of the input signal and the dc level on which it resides. The dc level
is set by the clamping circuitry (see the Clamp Operation section).
The currently active gain from any of the modes can be read
back. Refer to the description of the dual-function manual gain
bits, LMG [11:0] luma manual gain and CMG [11:0] chroma
manual gain, in the Luma Gain and the Chroma Gain sections.
If the amplitude of the analog video signal is too high, clipping
can occur, resulting in visual artifacts. The analog input range
of the ADC, together with the clamp level, determines the
maximum supported amplitude of the video signal.
054
79
-02
1
ANALOG VOLTAGE
RANGE SUPPORTED BY ADC (1.6V RANGE FOR ADV7184)
DATA
PRE-
PROCESSOR
(DPP)
ADC
SDP
(GAIN SELECTION ONLY)
MAXIMUM
VOLTAGE
MINIMUM
VOLTAGE
CLAMP
LEVEL
GAIN
CONTROL
Figure 21. Gain Control Overview
Table 39. AGC Modes
Input Video Type
Luma Gain
Chroma Gain
Any
Manual luma gain
Manual chroma gain
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
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADV7188BSTZ | IC DECODER VID MULTIFORM 80LQFP |
| ADV7189BBSTZ | IC VIDEO DECODER SDTV 80-LQFP |
| ADV7194KSTZ | IC ENCODER VIDEO EXT-10 80-LQFP |
| ADV7202KSTZ | IC CODEC VIDEO 10BIT 64LQFP |
| ADV7311KST | IC VID ENC 6-12BIT DAC'S 64LQFP |
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(chēng):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(chēng):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(chēng):Analog Devices 功能描述:Video Decoder and Display Processor |
| ADV7186BBCZ | 功能描述:IC VIDEO DECODER 196CSPBGA RoHS:是 類(lèi)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(lèi)型:調(diào)諧器 應(yīng)用:移動(dòng)電話，手機(jī)，視頻顯示器 安裝類(lèi)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(chēng):SP000365064 |
| ADV7186BBCZ-RL | 功能描述:IC VIDEO DECODER 196CSPBGA RoHS:是 類(lèi)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(lèi)型:調(diào)諧器 應(yīng)用:移動(dòng)電話，手機(jī)，視頻顯示器 安裝類(lèi)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(chēng):SP000365064 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。