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重疊
文件頁數(shù): 31/112頁
文件大小: 943K
代理商: ADV7188
ADV7188
Rev. 0 | Page 31 of 112
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Figure 18. Y PAL Notch Filter Responses
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Figure 19. Y NTSC Notch Filter Responses
CHROMA FILTER
Data from the digital fine clamp block is processed by three sets
of filters. The data format at this point is CVBS for CVBS
inputs, chroma only for Y/C, or Cr/Cb interleaved for YPrPb
input formats.
Chroma Antialias Filter (CAA). The ADV7188 over-
samples the CVBS by a factor of 2 and the Chroma/CrCb
by a factor of 4. A decimating filter (CAA) is used to
preserve the active video band and to remove any out-of-
band components. The CAA filter has a fixed response.
Chroma Shaping Filters (CSH). The shaping filter block
(CSH) can be programmed to perform a variety of low-
pass responses. It can be used to selectively reduce the
bandwidth of the chroma signal for scaling or compression.
Digital Resampling Filter. This block is used to allow
dynamic resampling of the video signal to alter parameters
such as the time base of a line of video. Fundamentally, the
resampler is a set of low-pass filters. The actual response is
chosen by the system without user intervention.
The plots in Figure 20 show the overall response of all filters
together, from SH1 (narrowest) to SH5 (widest) in addition to
the wideband mode (in red).
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Figure 20. Chroma Shaping Filter Responses
相關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
相關代理商/技術參數(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 供應商設備封裝: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 供應商設備封裝: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