AK8855 Datasheet, PDF (2/81 Pages) Asahi Kasei Microsystems – NTSC/PAL Digital Video Decoder

[ASAHI KASEI]
AK8855
Total Functional Block Diagram
XTO
XTI
SDA SCL RSTN
OE
CLKMOD
24.5454MHz
PLL
24.5454/27.00MHz
AIN1
AIN2
Selector
PGA
CLAMP
AAF
ADC
ATIO
TEST2
ANALOG
BLOCK
VREF
AVDD AVSS VRP VCOM VRN IREF
Microprocessor I/F
Register
1D Y/C
Separation
CLK
Y
Y
Y
Output Ctrl
Output
U
Down _Cb
Cb
I/F
Chrominance
C
Decode
Sampler
Pixel Interpolator
V
Cr
Cr
CLKO
D[7:0]
• Sync-Separation
• AGC Info.
• VBID
TEST0 TEST1
PDN
HD
VD
DVALID
HD/HV
VD/VAF
DVALID
FIELD
NSIG
DVDD DVSS
DIGITAL
BLOCK
PVDD PVSS
MS0319-E-03
2
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