AK8851 Datasheet, PDF (33/80 Pages) Asahi Kasei Microsystems – NTSC/PAL/SECAM Digital Video Decoder

ASAHI KASEI
< V-bit value vs. Line relation >
NTSC(525 System)
PAL/SECAM(625 System)
V-bit
TRSVSEL=0
ITU-R Bt.656-3
TRSVSEL=1
ITU-R Bt.656-4
SMPTE125M
TRSVSEL=0
TRSVSEL=1
V-bit = 0
Line10~Line263
Line273~Line525
Line20~Line263
Line283~Line525
Line23~Line310
Line336~Line623
V-bit = 1
Line1~Line9
Line264~Line272
Line1~Line19
Line264~Line282
Line1~Line22
Line311~Line335
Line624~Line625
note)
TRSVSEL-bit setting applies to all 525 and 625 Line systems as shown in the above table.
[AK8851]
[VBIDEC1:VBIDEC0]-bit:
This is a control bit to set tasks during Vertical Blanking Interval specified by [VBIL2:VBIL0]-bit.
[VBIDEC1:VBIDEC0]-bit
VBI data output
Note
00
Black Level Output
Y = 0x10
Cb/Cr = 0x80
Y = sampling data is converted to
01
Black and White mode
Rec.601 Level
Cb/Cr = 0x80
10
Sliced data is output during VBI Interval
Y/Cb/Cr = Sliced level which set at the
Slicer Register
11
Reserved
Reserved
MS0244-E-03
33
Confidential
2005 / 07