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AK8855 Datasheet(PDF) 4 Page - Asahi Kasei Microsystems

Part No. AK8855
Description  NTSC/PAL Digital Video Decoder
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Maker  AKM [Asahi Kasei Microsystems]
Homepage  http://www.akm.com
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AK8855 Datasheet(HTML) 4 Page - Asahi Kasei Microsystems

 
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[ASAHI KASEI]
AK8855
MS0319-E-03
4
2004 / 11
Pin Functional Description
Pin#
Pin Name
I/O
Functional Outline
A5
XTI
I
Quartz crystal resonator connecting pin ( to be grounded to Digital ground via
a 18 pF capacitor in the recommended circuit ).
- 24.5454 MHz crystal resonator should be used.
- input from 24.5454 MHz crystal oscillator is connected to this pin.
A6
XTO
O
Quartz crystal resonator connecting pin ( to be grounded to Digital ground via
a 22 pF capacitor in the recommended circuit ).
- 24.5454 MHz crystal resonator should be used.
- This pin outputs DVSS level at PDN = L.
- when a crystal resonator is not used, this pin is left open ( NC ) or connected
to DVSS.
B5
CLKMOD
I
Clock mode setting pin.
Connect to either DVDD or DVSS.
DVSS grounding : crystal resonator is used
DVDD connection : crystal oscillator is used
J2
OE
I
Output enable pin
L : output pins are put into Hi-Z condition
H : data is output
H1
SDA
I/O
I2C data pin
This pin is pulled-up to PVDD.
G1
SCL
I
I2C clock input pin
Input level of lower-than-PVDD should be input.
H3
RSTN
I
Reset signal input pin
L : reset
H : normal operation
Output pin conditions are in Hi-Z when RSTN pin is at low.
H2
PDN
I
power-down control pin
L : power-down
H : normal operation
H8
CLKO
O
Data clock output pin for output I/ F
J5
D7
O
Data output pin
Video decode data is output ( MSB ) ( note )
J6
D6
O
Data output pin ( note )
H6
D5
O
Data output pin ( note )
H7
D4
O
Data output pin ( note )
H9
D3
O
Data output pin ( note )
G9
D2
O
Data output pin ( note )
E8
D1
O
Data output pin ( note )
E9
D0
O
Data output pin ( LSB ) ( note )
C8
HD/HV
O
HD / HV timing signal output pin ( note )
C9
VD/VAF
O
VD / VAF timing signal output pin ( pin )
B9
DVALID
O
pin to indicate a valid Video interval ( note )
A8
FIELD
O
FIELD signal output pin ( note )
B8
NSIG
O
to show a status at no signal input condition ( note )
L : with input signal
H : no signal input


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