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參數資料
| 型號： | ADV7181BBCPZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 顏色信號轉換 |
| 英文描述： | Multiformat SDTV Video Decoder |
| 中文描述： | COLOR SIGNAL DECODER, QCC64 |
| 封裝： | 9 X 9 MM, LEAD FREE, MO-220-VMMD, LFCSP-64 |
| 文件頁數： | 28/96頁 |
| 文件大小： | 873K |
| 代理商： | ADV7181BBCPZ |
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ADV7181B
Rev. 0 | Page 28 of 96
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Figure 11. Y S-VHS Combined Responses
The filter plots in Figure 11 show the S-VHS 1 (narrowest) to
S-VHS 18 (widest) shaping filter settings. Figure 13 shows the
PAL notch filter responses. The NTSC-compatible notches are
shown in Figure 14.
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Figure 12.Y S-VHS 18 Extra Wideband Filter (CCIR 601 Compliant)
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Figure 13.Y S-VHS 18 Extra Wideband Filter (CCIR 601 Compliant)
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Figure 14. Y S-VHS 18 Extra Wideband Filter (601)
CHROMA FILTER
Data from the digital fine clamp block is processed by three sets
of filters. Note that the data format at this point is CVBS for
CVBS inputs, chroma only for Y/C, or U/V interleaved for
YPrPb input formats.
Chroma Antialias Filter (CAA). The ADV7181B over-
samples the CVBS by a factor of 2 and the Chroma/PrPb
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 15 show the overall response of all filters
together.
相關PDF資料 |
PDF描述 |
|---|---|
| ADV7181BBSTZ | Multiformat SDTV Video Decoder |
| ADV7181BCP | Multiformat SDTV Video Decoder |
| ADV7181BST | Multiformat SDTV Video Decoder |
| ADV7183B | Multiformat SDTV Video Decoder |
| ADV7183BBSTZ | Multiformat SDTV Video Decoder |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADV7181BBSTZ | 制造商:Analog Devices 功能描述:Video Decoder 3ADC 9-Bit 64-Pin LQFP 制造商:Analog Devices 功能描述:IC VIDEO ENCODER |
| ADV7181BCP | 制造商:Analog Devices 功能描述:Video Decoder 3ADC 9-Bit 64-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:10BIT NTSC/PAL/SECAM VIDEO DECODER I.C. - Bulk |
| ADV7181BCPZ | 制造商:Analog Devices 功能描述: |
| ADV7181BST | 制造商:Analog Devices 功能描述:Video Decoder 3ADC 9-Bit 64-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:9-BIT BIT NTSC/PAL/SECAM VIDEO DECODER - Bulk 制造商:Analog Devices 功能描述:IC VIDEO ENCODER |
| ADV7181C | 制造商:AD 制造商全稱:Analog Devices 功能描述:10-Bit, Integrated, Multiformat SDTV Video Decoder and RGB Graphics Digitizer |
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