ASAHI KASEI
[AK8817/18]
1713 1714
(a-2) Horizontal Synchronization ( Pixel Data synchronization within a Line )
(a-2-1) at ITU-R BT. 601 data input case
(a-2-1-1) NTSC
1715
0
244
246 247 248
1683 1684
245
CLKIN
(27.00MHz)
(0x10) (0x80) (0x10) (0x80) (0x10)
0H
(0x80) (0x10) (0x10) (0x80)
Cr359 Y719
Cb0 Y0 Cr0 Y1 Cb1
DTI[7:0]
HDI
Active Video Area
720 x 2 Clock
244T
* ) when D [7:0], HDI and CLKIN are in same phase relation as a timing example above, the AK8817/18 takes input data at
the falling edge of each CLKIN if CLKEDGE-bit = 1.(CLKINV = 1.)
* ) as an input data other than during active video period, Black level ( C / Y = 0x80 / 0x10 ) or other than 0x00 / 0xFF
codes in non Hi-Z state should be input.
(a-2-1-2) PAL
1727
0
264
266 267 268
1702 1703 1704
1725 1726
265
CLKIN
(27.00MHz)
(0x10) (0x80) (0x10) (0x80) (0x10)
H0
(0x80) (0x10) (0x10) (0x80)
Cr359 Y719
Cb0 Y0 Cr0 Y1 Cb1
DTI[7:0]
HDI
Active Video Area
720 x 2 Clock
264T
*) when D [7:0], HDI and CLKIN are in same phase relation as a timing example above, the AK8817/18 takes input data at
the falling edge of each CLKIN if CLKEDGE-bit = 1. .( CLKINV = 1.)
* ) as an input data other than during active video period, Black level ( C / Y = 0x80 / 0x10 ) or other than 0x00 / 0xFF
codes in non Hi-Z state should be input.
Rev.001E
25
2009 / 12
AKM [ ASAHI KASEI MICROSYSTEMS ]
