- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄375269 > ADV7188 (Analog Devices, Inc.) Multiformat SDTV Video Decoder with Fast Switch Overlay Support PDF資料下載
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(guān)重疊 |
| 文件頁數(shù)： | 4/112頁 |
| 文件大?。?/td> | 943K |
| 代理商： | ADV7188 |
第1頁第2頁第3頁當(dāng)前第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頁第109頁第110頁第111頁第112頁
ADV7188
INTRODUCTION
The ADV7188 is a high quality, single chip, multiformat video
decoder that automatically detects and converts PAL, NTSC,
and SECAM standards in the form of composite, S-Video, and
component video into a digital ITU-R BT.656 format.
Rev. 0 | Page 4 of 112
The advanced and highly flexible digital output interface enables
performance video decoding and conversion in line-locked
clock-based systems. This makes the device ideally suited for a
broad range of applications with diverse analog video
characteristics, including tape-based sources, broadcast sources,
security and surveillance cameras, and professional systems.
ANALOG FRONT END
The ADV7188 analog front end includes four 12-bit noise
shaped video ADCs that digitize the analog video signal before
applying it to the standard definition processor. The analog
front end uses differential channels to each ADC to ensure high
performance in mixed-signal applications.
The front end also includes a 12-channel input mux that enables
multiple video signals to be applied to the ADV7188. Current
and voltage clamps are positioned in front of each ADC to
ensure that the video signal remains within the range of the
converter. Fine clamping of the video signals is performed
downstream by digital fine clamping within the ADV7188. The
ADCs are configured to run in 4× oversampling mode.
The ADV7188 has optional anti-aliasing filters on each of the
four input channels. The filters are designed for SD video with
approximately 6 MHz bandwidth.
SCART and overlay functionality are enabled by the ADV7188’s
ability to simultaneously process CVBS and Standard Definition
RGB signals. Signal mixing is controlled by the Fast Blank pin.
STANDARD DEFINITION PROCESSOR (SDP)
The ADV7188 is capable of decoding a large selection of
baseband video signals in composite, S-Video, and component
formats. The video standards supported include PAL
B/D/I/G/H, PAL60, PAL M, PAL N, PAL Nc, NTSC M/J, NTSC
4.43, and SECAM B/D/G/K/L. The ADV7188 can automatically
detect the video standard and process it accordingly.
The ADV7188 has a 5-line, superadaptive, 2D comb filter that
gives superior chrominance and luminance separation when
decoding a composite video signal. This highly adaptive filter
automatically adjusts its processing mode according to video
standard and signal quality without user intervention. Video
user controls such as brightness, contrast, saturation, and hue
are also available within the ADV7188.
The ADV7188 implements a patented adaptive digital line
length tracking (ADLLT) algorithm to track varying video line
lengths from sources such as a VCR. ADLLT enables the
ADV7188 to track and decode poor quality video sources such
as VCRs, noisy sources from tuner outputs, VCD players, and
camcorders. The ADV7188 contains a chroma transient
improvement (CTI) processor that sharpens the edge rate of
chroma transitions, resulting in sharper vertical transitions.
The ADV7188 can process a variety of VBI data services, such
as closed captioning (CC), wide screen signaling (WSS), copy
generation management system (CGMS), Gemstar 1×/2×,
extended data service (XDS) and teletext. The ADV7188 is fully
Macrovision certified; detection circuitry enables Type I, II, and
III protection levels to be identified and reported to the user.
The decoder is also fully robust to all Macrovision signal inputs.
FUNCTIONAL BLOCK DIAGRAM
S-YPrPb
RGB + CVBS
A/D
FANTI
12
A/D
FANTI
12
A/D
FANTI
12
A/D
FANTI
12
AIN1–
12
IMUX
PREPDATA
LUMA
ESYNC
FILTER
RELUMA
CONTROL
F
RECOVERY
CHROMA
DEMOD
CONVERSION
(5H MAX)
(4H MAX)
CVBS
C
DOWNSAMPLING
FILTERS
12
12
12
12
Cr
Cb
Y
CLAMP
CLAMP
CLAMP
CLAMP
FOVERLAY
CONTROL
VBI DATA RECOVERY
DETECTION
GLOBAL CONTROL
AUSTANDARD
SYNTHESIZED
OUTFREE RUN
20
STANDARD DEFINITION PROCESSOR
R
G
B
Cr
Cb
10
10
PIXEL
P19-P10
HS
SFL
LLC2
LLC1
FIELD
VS
INT
O
CONTROL
FB
SCLOCK GENERATION
CSERIAL INTERFACE
CSYNC AND
ADV7188
0
Y
Cr
Cb
CVBS/Y
SCLK
SDA
ALSB
Figure 1.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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(guān)代理商/技術(shù)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(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 |
| 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(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 |
| ADV7189BBSTZ268H | 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat SDTV Video Decoder |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。