AK8826 Datasheet, PDF (3/157 Pages) Asahi Kasei Microsystems – HD/SD Multi Format Video Encoder with 3ch DAC

1. Block Diagram
PDN SDA SCL SELA
CLKIN
27MHz or 74.25MHz
Clock Gen
PLL
74.25MHz-> 148.5MHz
27MHz -> 54MHz 6.75/13.5/27/54/148.5MHz
u-P I/F
DATA[17:0]
18-bit
HDI
VDI
YCbCr
YCbCr to RGB
RGB to YCbCr
RGB
Y
Y
Cb ^NTSC/PAL C
Composite Video
Cr
Encoder CVBS
Y/G
Cb/B
Cr/R
G
B
R
Component
Encoder
Delay
Y/G
Cb/B
Cr/R
G
B
R
TMO
[AK8826VN]
TEST
TEST0
TEST1
DAC1
DAC2
DAC3
HDY/SDY/G
HDPb/SDC/B
HDPr/CVBS/R
Delay
Delay
Buffer
Buffer
VREF
HDO
VDO
PVDD1
PVDD2
DVDD DVSS AVDD AVSS
Fig. 1 Block Diagram
VREF IREF BYPASS FLT
MS0972-E-01
3
2008/12