AK8855 Datasheet, PDF (4/81 Pages) Asahi Kasei Microsystems – NTSC/PAL Digital Video Decoder

[ASAHI KASEI]
AK8855
Pin Functional Description
Pin#
A5
A6
B5
J2
H1
G1
H3
H2
H8
J5
J6
H6
H7
H9
G9
E8
E9
C8
C9
B9
A8
B8
Pin Name
XTI
XTO
CLKMOD
OE
SDA
SCL
RSTN
PDN
CLKO
D7
D6
D5
D4
D3
D2
D1
D0
HD/HV
VD/VAF
DVALID
FIELD
NSIG
I/O
Functional Outline
Quartz crystal resonator connecting pin ( to be grounded to Digital ground via
I
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.
Quartz crystal resonator connecting pin ( to be grounded to Digital ground via
a 22 pF capacitor in the recommended circuit ).
O
- 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.
Clock mode setting pin.
I
Connect to either DVDD or DVSS.
DVSS grounding : crystal resonator is used
DVDD connection : crystal oscillator is used
Output enable pin
I L : output pins are put into Hi-Z condition
H : data is output
I/O
I2C data pin
This pin is pulled-up to PVDD.
I
I2C clock input pin
Input level of lower-than-PVDD should be input.
Reset signal input pin
I
L : reset
H : normal operation
Output pin conditions are in Hi-Z when RSTN pin is at low.
power-down control pin
I L : power-down
H : normal operation
O Data clock output pin for output I/ F
O
Data output pin
Video decode data is output ( MSB ) ( note )
O Data output pin ( note )
O Data output pin ( note )
O Data output pin ( note )
O Data output pin ( note )
O Data output pin ( note )
O Data output pin ( note )
O Data output pin ( LSB ) ( note )
O HD / HV timing signal output pin ( note )
O VD / VAF timing signal output pin ( pin )
O pin to indicate a valid Video interval ( note )
O FIELD signal output pin ( note )
to show a status at no signal input condition ( note )
O L : with input signal
H : no signal input
MS0319-E-03
4
2004 / 11