AK8825 Datasheet, PDF (78/162 Pages) Asahi Kasei Microsystems – HD/SD Multi Format Video Encoder with 3ch DAC

( 2-6) 1080i / 50Hz (8-bit x 2ch)
(2-6-1) HDCEA861-bit = 0
HDI and VDI timing
74.25MHz
or
74.25/1.001
D ATA [7 :0 ]
D ATA [1 5 :8 ]
236T
[AK8825]
Y₀
Y₁
Y₂
Y₃
---
Y_2n
Y_2n+1
Cb₀ Cr₀ Cb₁ Cr₁
---
Cb_n Cr_n
HDI
Fig. 102 1125i(1080i) HSYNC and data (8-bit x 2ch)
1124
1125
1
2
Digital
Line-No.
3
4
5
6
7
HDI
VDI
Fig. 103 1125i (1080i) Relation between HSYNC and VSYNC(1)
561
Digital
Line-No.
HDI
VDI
HDI
start of 1st field
VDI
Start of 2nd Field
VDI
562
563
564
565
566
567
568
569
Fig. 104 1125i (1080i) Relation between HSYNC and VSYNC(2)
1/2H 1/2H
1/2H
1/2H
Fig. 105 Field Recognition
Rev-E-00
78
2008/03