CS4954-CQ Ver la hoja de datos (PDF) - Cirrus Logic
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fabricante
CS4954-CQ Datasheet PDF : 56 Pages
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CS4954 CS4955
Start of
VSYNC
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262 263 1
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Field 2
261 262 1
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Start of
VSYNC
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Field 4
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Burst begins with positive half-cycle
Burst phase = reference phase = 180 0relative to B-Y
Burst begins with negative half-cycle
Burst phase = reference phase = 1800relative to B-Y
Figure 9. NTSC Video Non-Interlaced Progressive Scan Timing
VSYNC Drops
Analog
Field 1
309 310 311 312 313 1
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Analog
Field 2
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Analog
Field 3
309 310 311 312 313 1
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Analog
Field 4
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308 309 310 311 312
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Burst Phase = 135 degrees relative to U
Burst Phase = 225 degrees relative to U
Figure 10. PAL Video Non-Interlaced Progressive Scan Timing
20
DS278PP4
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