ASAHI KASEI
[AK8817/18]
Pin#
31
32
33
34
Pin Name
PVSS
VDI
HDI
SDA
I/O
G
I
I
I/O
Ground pin for PVDD.
Vertical SYNC signal input pin.
Functional Outline
Hi-Z input is acceptable to this pin at PDN = L.
35
36
37
38
SCL
N.C.
ATPG
PDN
I
-
I
I
Horizontal SYNC signal input pin.
Hi-Z input is acceptable to this pin at PDN = L.
I2C data pin.
This pin is pulled-up to PVDD.
Hi-Z input is possible when PDN is at low.
SDA input is not accepted during the reset sequence operation.
I2C clock input pin
An input level of lower-than-PVDD should be input.
Hi-Z input is possible when PDN is at low.
SCL input is not accepted during the reset sequence operation.
For normal operation, left open.
For normal operation, connect to ground.
Power Down Pin. After returning from PD mode to normal operation, RESET
Sequence should be done to AK8817/18VQ.
“L “(GND level): Power-down
“H “: normal operation
Reset input pin. In order to initialize the device , an initialization must be made in
accordance with the reset sequence.
“L “ : reset
“H “ : normal operation
Hi-Z input is acceptable to this pin at PDN = L.
Digital ground pin (digital core ground).
Digital power supply pin (digital core power supply).
For normal operation, left open.
Video output pin.
Substrate ground pin.
Connect this pin to Analog ground
SAG Compensation Input pin
Analog ground pin.
DAC output pin. Connect this pin to Analog ground via a 390 ohm resistor
( better than +/- 1% accuracy ).
39
RSTN
I
40
41
42
43
44
45
46
47
48
DVSS
DVDD
N.C.
VOUT
BVSS
SAG
AVSS
DACOUT
N.C.
G
P
-
O
G
O
G
O
-
For normal operation, left open.
Analog Output pin status
MODE / PIN name
PDN＝L
PDN=H、DAC=L
VIDEOAMP=L
PDN=H、DAC=H
VIDEOAMP=L
PDN=H、DAC=H
VIDEOAMP=H
IREF
Hi-Z
Output
Output
Output
VREF
Hi-Z
Outpu
Output
Output
DACOUT
Hi-Z
Hi-Z
DAC Power Down
Output
Output
VOUT
Hi-Z
Hi-Z
VIDEOAMP Power Down
VIDEOAMP Power Down(1)
Output
DAC: Sub Address 0x00 bit7 0: L->DACOFF 1: H->DACON
VIDEOAMP: Sub Address 0x01 bit3,4 00: L->VIDEOAMP_OFF 01,10: H-> VIDEOAMP_ON
Note1) Video Amp becomes power down. Since DACOUT pin and VOUT pin are connected with RESISTOR in the LSI,
DACOUT pin are not Hi-Z. In case of using only DAC, VOUT pin and SAG pin should be open states.
Rev.001E
8
2009 / 12
AKM [ ASAHI KASEI MICROSYSTEMS ]
