[AK2331]
Pin Functions
Pin
No.
5
6
7
8
9
10
Pin
name
RSTN
CSN
SCLK
SDATA
DVDD
VSS
Pin
type
DI
DI
DI
DI
PWR
PWR
Pin
status at
system
reset
Z
Z
Z
Z
-
-
Reset pin
Chip select input pin for serial interface data
Clock input pin for serial interface data
I/O pin for serial interface data
Digital VDD power supply pin
Connect this pin to a 2.6 to 5.5V power supply. Connect a
bypass capacitor of 0.1μF or greater between this pin and the
VSS pin.
VSS power supply pin
Always apply a voltage of 0V to this pin.
Analog VDD power supply pin
Connect this pin to a 2.6 to 5.5V power supply. Connect a
bypass capacitor of 0.1μF or greater between this pin and the
VSS pin.
Apply a voltage so that DVDD is equal to or less than AVDD.
D/A converter reference voltage input pin
Function
11
AVDD
PWR
-
12
1
4
13
16
2
3
14
15
Note
VREF
VIN0
VIN1
VIN2
VIN3
VOUT0
VOUT1
VOUT2
VOUT3
AI
AI
AI
AI
AI
AO
AO
AO
AO
Z
L
L
L
L
Z
Z
Z
Z
D/A converter input pin
D/A converter/buffer amplifier output pin
A:
Analog,
D:
Digital,
PWR:
Power,
I:
Input,
O:
Output,
Z:
High-Z,
L:
Low
MS0903-E-00
-5-
2008/03
AKM [ ASAHI KASEI MICROSYSTEMS ]
