ak8825 AKM Semiconductor, Inc., ak8825 Datasheet - Page 58

• Manufacturer Part Number: ak8825
• Description: Hd/sd Multi Format Video Encoder With 3ch Dac
• Manufacturer: AKM Semiconductor, Inc.

(1-3) Synchronization for Vertical direction (EAV-Sync mode)
The AK8825 makes Vertical Synchronization (Line Synchronization) with either F-bit or V-bit of EAV.
Interlaced signal: using F-bit
Progressive signal: using V-bit
(1-2-1) F-bit
Relation between F-bit and Line-Number
(1-2-2) V-bit
Relation between V-bit and Line-Number
- 525i (480i), 625i (576i), 1080i case
Note: AK8825 don’t care V-bit in case of 525i / 625i / 1080i mode
- 525P, 625P, 750P case
Rev-E-00
Field 1
Field 2
Field
F-bit
Start (V=1)
End (V=0)
0
1
V-bit
Line266 - Line525
Line4 - Line265
Line1 - Line3
Start (V=1)
Start (V=1)
End (V=0)
End (V=0)
525i
V-bit
Line43 - Line525
Line1 - Line42
525P
Line313 - Line625
Line264 - Line282
Line283 - Line525
Line20 - Line263
Line1 - Line312
Line1 - Line19
625i
525i
Line621 - Line44
Line45 - Line625
625P
58
Line311 - Line335
Line336 - Line623
Line624 - Line22
Line23 - Line310
525P/625P
All Lines
F = 0
625i
Line746 - Line750 - Line25
Line564 - Line1125
Line1 - Line563
Line26 - Line745
1080i
720P
Line1124 - Line1125 - Line20
Line584 - Line1123
Line561 - Line583
Line21 - Line560
1080i (60/50Hz)
All Lines
720P
F = 0
2008/03
[AK8825]