- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374047 > ADV7185 (Analog Devices, Inc.) Professional NTSC/PAL Video Decoder with 10-Bit CCIR656 Output PDF資料下載
參數(shù)資料
| 型號(hào)： | ADV7185 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Professional NTSC/PAL Video Decoder with 10-Bit CCIR656 Output |
| 中文描述： | 專業(yè)NTSC / PAL視頻解碼器，10位CCIR656輸出 |
| 文件頁(yè)數(shù)： | 17/41頁(yè) |
| 文件大小： | 730K |
| 代理商： | ADV7185 |
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)當(dāng)前第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)
REV. 0
ADV7185
–17–
Control and Pixel Interface FIFO Modes
When the ADV7185 is configured to operate in this mode, pixel
data generated within the part is buffered by a 512-pixel deep FIFO.
Only active video pixels and control codes are written into the FIFO;
the others have been dropped. In this mode, the output is operating
asynchronously and a CLKIN must be provided to clock pixels out
of the FIFO. The CLKIN must operate faster than the effective
data
transfer rate into the FIFO. This rate will be determined by the
number of active pixels per line. If the CLKIN is not above this, the
FIFO may overflow. The ADV7185 controls the FIFO when set to
operate in SCAPI mode. DV (data valid) is internally fed back to
the RD (read enable), unlike the synchronous pixel mode where DV
will not indicate the validity of the current pixel and only acts as an
indication of how much data is stored in the FIFO. DV will go high
at the same time as AFF and remain high until the FIFO is empty.
By internally setting DV to RD, the system ensures that the
FIFO never overflows. When using this mode, the status of data
on the
pixel outputs can be determined by two indicators, DV and
QCLK.
DV will go active two clock cycles (LLC1) before valid data
appears
on the bus. QCLK is a qualified clock derived from
CLKIN, but
will only be present when valid pixel data is output
from the FIFO.
DV indicates valid pixel or control code data.
Using these two
control signals, the user can differentiate between
pixel information
and invalid data. Figure 25 shows the basic
timing
relationship for this mode.
The operation of the ADV7185 in CAPI mode is similar to that
of SCAPI mode with the exception that now the FIFO is con-
trolled by the system; the system must monitor the almost full
flag (AFF), the almost empty flag (AEF), and control the FIFO
read enable (RD). Unlike SCAPI mode, the QCLK is not gated
and is therefore continuous. Figure 26 shows the basic timing
relationship of this mode.
PIXEL DATA
DV
CLKIN
QCLK
AFF
AEF
NOTES
1. THE POLARITY OF AFF AND AEF ARE CONTROLLED BY THE PFF BIT.
2. DV POLARITY IS SET BY THE PDV BIT.
Figure 25. SCAPI Output Mode FIFO Operation
RD
CLKIN
QCLK
AFF
AEF
THE POLARITY OF AFF AND AEF ARE CONTROLLED BY THE PFF BIT.
DATA
Figure 26. CAPI Output Mode FIFO Operation
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADV7185KST | Professional NTSC/PAL Video Decoder with 10-Bit CCIR656 Output |
| ADV7190KST | Video Encoder with Six 10-Bit DACs and Video Encoder with Six DAC Outputs |
| ADV7191 | Video Encoder with Six 10-Bit DACs and Video Encoder with Six DAC Outputs |
| ADV7191KST | Video Encoder with Six 10-Bit DACs and Video Encoder with Six DAC Outputs |
| ADV7190 | Video Encoder with Six 10-Bit DACs and Video Encoder with Six DAC Outputs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(dòng)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(dòng)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-T | 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(dòng)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(gòu)，3分鐘左右您將得到回復(fù)。