ak8823 AKM Semiconductor, Inc., ak8823 Datasheet - Page 20

• Manufacturer Part Number: ak8823
• Description: Hdtv & Ntsc/pal Multi-format Encoder Sdtv/hdtv X2 Oversampling 5ch Dacs
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
15. HD Block
15-1. Video Interface Timing (HD)
The AK8823 has 2 types of Video Interfaces, EAV Decode mode and Slave SYNC mode.
EAV SYNC mode
( HD ) [ Mode Register ] ( Sub Address 0x00 )
Slave SYNC mode
The AK8823 can also synchronize with externally-fed HSYNC signal and VSYNC signal as Slave SYNC mode operation.
HSYNC becomes Pixel Counter Reference Point within a Line and VSYNC becomes Line Counter Reference Point within a
Frame.
Polarities of HSYNC_HD, VSYNC_HD are pre-settable.
When an interlaced signal is input, the First and the Second Fields are recognized from HSYNC and VSYNC relation.
In this mode, the AK8823 also complies with EIA / CEA 861B compatible timing.
( HD ) [ Mode Register ] ( Sub Address 0x00 )
MS0549-E-02
(1) 525i (480i) / 60Hz (HD)
(1-1) Data Capture
(1-1-2) EAV Decode ( Capture ) : 525i ( 480i ) / 60 Hz ( HD )
27MHz
Y7-0
···
0xFF
0x00
EAV
0x00
0xYY
set by EAVDEC ( bit 4 )
CEA 861B ( bit 3 )
···
···
20
···
···
Cb0
Y0
Cr0 Y1
2006/10
[AK8823]