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ADV7174BCP Datasheet(PDF) 49 Page - Analog Devices |
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ADV7174BCP Datasheet(HTML) 49 Page - Analog Devices |
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49 / 52 page ![]() ADV7174/ADV7179 Rev. A | Page 49 of 52 APPENDIX 7—OPTIONAL OUTPUT FILTER If an output filter is required for the CVBS, Y, UV, chroma, and RGB outputs of the ADV7174/ADV7179, the filter shown in Figure 79 can be used. Plots of the filter characteristics are shown in Figure 80. An output filter is not required if the outputs of the ADV7174/ADV7179 are connected to most analog monitors or analog TVs. However, if the output signals are applied to a system where sampling is used (e.g., digital TVs), then a filter is required to prevent aliasing. 1.8 µH 75 Ω 270pF 22pF DISPLAY DEVICE Z0 = 75Ω 330pF FILTER I/P 75 Ω Figure 79. Output Filter FREQUENCY (Hz) 0 80 100k 70 60 50 40 30 20 10 1M 10M 100M Figure 80. Output Filter Plot |
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