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CS4954 Datasheet(PDF) 20 Page - Cirrus Logic |
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CS4954 Datasheet(HTML) 20 Page - Cirrus Logic |
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20 / 56 page ![]() CS4954 CS4955 20 DS278PP4 261 262 12 3 4 5 6 7 8 9 Start of VSYNC 10 22 Field 1 Burst begins with positive half-cycle Burst begins with negative half-cycle Burst phase = reference phase = 180 relative to B-Y 0 Burst phase = reference phase = 180 relative to B-Y 0 262 263 12 3 4 5 6 7 8 9 10 22 261 262 12 3 4 5 6 7 8 9 10 22 262 263 12 3 4 5 6 7 8 9 10 22 Field 2 Field 3 Field 4 Start of VSYNC Figure 9. NTSC Video Non-Interlaced Progressive Scan Timing 309 310 311 Analog Field 1 Burst Phase = 135 degrees relative to U Burst Phase = 225 degrees relative to U 312 313 1 2 3 4 5 6 7 23 24 309 Analog Field 2 308 311 312 VSYNC Drops 12 3 4 5 6 7 23 24 310 309 310 311 Analog Field 3 312 313 1 2 3 4 5 6 7 23 24 309 Analog Field 4 308 311 312 12 3 4 5 6 7 23 24 310 Figure 10. PAL Video Non-Interlaced Progressive Scan Timing |
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