ak8825 AKM Semiconductor, Inc., ak8825 Datasheet - Page 49

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

(2) Case of 525P/625P Data Input
Y/Cb/Cr data should be input with 16-bit width at 27MHz clock-rate.
x2 Over-sampling filter for Y-data and x4 Over-sampling filter for Cb/Cr data is equipped.
The block diagram is shown as follows,
Rev-E-00
Cb/Cr
Y
8-bit
8-bit
Synchronization Mode
27MHz
MUX
Synchronization Timing
Decoder
EAV
Cb/Cr
Y
Cb/Cr
Y
Input Formatter
Fig. 41 525P/625P mode Block Diagram
Conversion
DEMUX
Level
CB [9:0]
CR [9:0]
Y [9:0]
13.5MHz
49
Compensation
Interpolation
sin(x)/x
LPF-E
4:2:2
4:4:4
to
27MHz
Interpolation
Interpolation
LPF-D
LPF-F
x2
x2
Delay
Delay
Delay
SYNC Form
54MHz
DAC
DAC
DAC
2008/03
[AK8825]