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參數(shù)資料
| 型號： | ADV7188BSTZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 31/112頁 |
| 文件大小： | 0K |
| 描述： | IC DECODER VID MULTIFORM 80LQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 視頻解碼器 |
| 應(yīng)用： | 機(jī)頂盒，視頻播放器，錄音機(jī) |
| 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 |
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ADV7188
Rev. A | Page 25 of 112
SYNC PROCESSING
The ADV7188 extracts syncs embedded in the video data
stream. There is currently no support for external HS/VS
inputs. The sync extraction is optimized to support imperfect
video sources, such as videocassette recorders with head
switches. The actual algorithm used employs a coarse detection
based on a threshold crossing, followed by a more detailed
detection using an adaptive interpolation algorithm. The raw
sync information is sent to a line-length measurement and
prediction block. The output of this block is then used to drive
the digital resampling section to ensure that the ADV7188
outputs 720 active pixels per line.
The sync processing on the ADV7188 also includes the following
specialized postprocessing blocks that filter and condition the raw
sync information retrieved from the digitized analog video.
Vsync Processor. This block provides extra filtering of the
detected vsyncs to improve the vertical lock.
Hsync Processor. The hsync processor is designed to filter
incoming hsyncs that have been corrupted by noise,
providing much improved performance for video signals
with a stable time base but poor SNR.
VBI DATA RECOVERY
The ADV7188 can retrieve the following information from the
input video:
Wide-screen signaling (WSS)
Copy generation management system (CGMS)
Closed captioning (CC)
Macrovision protection presence
Gemstar-compatible data slicing
Teletext
VITC/VPS
The ADV7188 is also capable of automatically detecting the
incoming video standard with respect to
Color subcarrier frequency
Field rate
Line rate
The ADV7188 can configure itself to support PAL
(B/G/H/I/D/M/N), PAL Combination N, NTSC M, NTSC J,
SECAM 50 Hz/60 Hz, NTSC 4.43, and PAL 60.
GENERAL SETUP
Video Standard Selection
The VID_SEL [3:0] bits allow the user to force the digital core
into a specific video standard. Under normal circumstances, this
should not be necessary. The VID_SEL [3:0] bits default to an
autodetection mode that supports PAL, NTSC, SECAM, and
variants thereof. The following section describes the autodetec-
tion system.
Autodetection of SD Modes
To guide the autodetection system, individual enable bits are
provided for each of the supported video standards. Setting the
relevant bit to 0 inhibits the standard from being automatically
detected. Instead, the system selects the closest of the remaining
enabled standards. The results of the autodetection can be read
back via the status registers. See the Global Status Registers
section for more information.
VID_SEL [3:0], Address 0x00 [7:4]
Table 24. VID_SEL Function
VID_SEL [3:0]
Description
0000 (default)
Autodetect PAL (B/G/H/I/D),
NTSC (without pedestal), SECAM
0001
Autodetect PAL (B/G/H/I/D),
NTSC M (with pedestal), SECAM
0010
Autodetect PAL N (without pedestal),
NTSC M (without pedestal), SECAM
0011
Autodetect PAL N (with pedestal),
NTSC M (with pedestal), SECAM
0100
NTSC J (1)
0101
NTSC M (1)
0110
PAL 60
0111
NTSC 4.43 (1)
1000
PAL B/G/H/I/D
1001
PAL N (PAL B/G/H/I/D without pedestal)
1010
PAL M (without pedestal)
1011
PAL M
1100
PAL Combination N
1101
PAL Combination N (with pedestal)
1110
SECAM
1111
SECAM (with pedestal)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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(biāo)準(zhǔn)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 |
| ADV7189BBSTZ268H2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat SDTV Video Decoder |
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