參數(shù)資料
型號(hào)： ADV7183BBSTZ
廠商： ANALOG DEVICES INC
元件分類： 顏色信號(hào)轉(zhuǎn)換
英文描述： Multiformat SDTV Video Decoder
中文描述： COLOR SIGNAL DECODER, PQFP80
封裝： LEAD FREE, MS-026-BEC, LQFP-80
文件頁(yè)數(shù)： 21/100頁(yè)
文件大?。?/td> 844K
代理商： ADV7183BBSTZ
ADV7183B
SYNC PROCESSING
The ADV7183B extracts syncs embedded in the video data
stream. There is currently no support for external HS/VS
inputs. The sync extraction has been optimized to support
imperfect video sources such as VCRs 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 is then used to drive the digital resampling
section to ensure the ADV7183B outputs 720 active pixels per
line.
Rev. B | Page 21 of 100
The sync processing on the ADV7183B 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 give improved vertical lock.
Hsync Processor. The Hsync processor is designed to filter
incoming Hsyncs that are corrupted by noise, providing
much improved performance for video signals with stable
time base but poor SNR.
VBI DATA RECOVERY
The ADV7183B can retrieve the following information from the
input video:
Wide-screen signaling (WSS)
Copy generation management system (CGMS)
Closed caption (CC)
Macrovision protection presence
EDTV data
Gemstar-compatible data slicing
The ADV7183B is also capable of automatically detecting the
incoming video standard with respect to
Color subcarrier frequency
Field rate
Line rate
The SPD can configure itself to support PAL-B/G/H/I/D,
PAL-M/N, PAL-combination N, NTSC-M, NTSC-J, SECAM
50 Hz/60 Hz, NTSC4.43, and PAL60.
GENERAL SETUP
Video Standard Selection
The VID_SEL[3:0] bits allows 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 detected
automatically. Instead, the system picks the closest of the
remaining enabled standards. The results of the autodetection
can be read back via the status registers. See the
169H
Global Status
Registers section for more information.
VID_SEL[3:0] Address 0x00[7:4]
Table 18. VID_SEL Function
VID_SEL
Description
0000 (default)
Autodetect (PAL BGHID) <–> NTSC J
(no pedestal), SECAM
0001
Autodetect (PAL BGHID) <–> NTSC M
(pedestal), SECAM
0010
Autodetect (PAL N) (pedestal) <–> NTSC J
(no pedestal), SECAM
0011
Autodetect (PAL N) (pedestal) <–> NTSC M
(pedestal), SECAM
0100
NTSC-J (1)
0101
NTSC-M (1)
0110
PAL60
0111
NTSC-.43 (1)
1000
PAL-B/G/H/I/D
1001
PAL-N (= PAL BGHID (with 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)
AD_SEC525_EN Enable Autodetection of SECAM 525
Line Video, Address 0x07[7]
Setting AD_SEC525_EN to 0 (default) disables the autodetection
of a 525-line system with a SECAM style, FM-modulated color
component.
Setting AD_SEC525_EN to 1 enables the detection.
相關(guān)PDF資料
PDF描述
ADV7183BKSTZ Multiformat SDTV Video Decoder
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADV7183BKST 制造商:Analog Devices 功能描述:MULTIFORMAT SDTV VID DECODER 80LQFP - Bulk
ADV7183BKSTZ 功能描述:IC VIDEO DECODER NTSC 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
ADV7183KST 制造商:Analog Devices 功能描述:Video Decoder 2ADC 10-Bit 80-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:VIDEO DECODER I.C. - Bulk
ADV7184 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat SDTV Video Decoder with Fast Switch Overlay Support
ADV7184BSTZ 功能描述:IC DECODER VID SDTV MULTI 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(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
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