ak8825 AKM Semiconductor, Inc., ak8825 Datasheet - Page 51
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ak8825
Manufacturer Part Number
ak8825
Description
Hd/sd Multi Format Video Encoder With 3ch Dac
Manufacturer
AKM Semiconductor, Inc.
Datasheet
1.AK8825.pdf
(162 pages)
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(3) Case of 1125i (1080i) 750P(720P) data input
Y/Cb/Cr data should be input with 16-bit width at 74.25MHz 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
74.25MHz
Synchronization Mode
MUX
Synchronization Timing
Decoder
EAV
Cb/Cr
Y
Cb/Cr
Y
Fig. 45 1080i/720P mode Block Diagram
Input Formatter
Conversion
DEMUX
Level
CB [9:0]
CR [9:0]
Y [9:0]
37.125MHz
51
Compensation
Interpolation
sin(x)/x
LPF-E
4:2:2
4:4:4
to
74.25MHz
Interpolation
Interpolation
LPF-F
x2
x2
Delay
Delay
Delay
SYNC Form
148.5MHz
DAC
DAC
DAC
2008/03
[AK8825]
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