AK9231 Datasheet, PDF (4/11 Pages) Asahi Kasei Microsystems – Dual 12-Bit 1MSPS SAR A/D Converter

[AK9231]
4.2. Pin Functions
Pin No. Pin Name I/O Function
1
TEST0
I
TEST0 (Internal pull down: 50kΩ. Typ.)
This pin must be connected to VSS.
2
TEST1
I
TEST1 (Internal pull down: 50kΩ. Typ.)
This pin must be connected to VSS.
3
VDD
- Power Supply: 2.35 ~ 5.25V
4
VSS
- Ground
5
SDO0
O Serial Data Output 0
6
SDO1
O Serial Data Output 1
7
CSN
I Chip Select
8
SCK
I Serial Clock Input
9
NC
-
No Connection.
No internal bonding. This pin must be connected to VSS
10
NC
-
No Connection.
No internal bonding. This pin must be connected to VSS
11
TEST2
I
TEST2 (Internal pull down: 50kΩ. Typ.)
This pin must be connected to VSS.
12
TEST3
I
TEST3 (Internal pull down: 50kΩ. Typ.)
This pin must be connected to VSS.
13
AIN1
I ADC1 Input
14
NC
-
No Connection.
No internal bonding. This pin must be connected to VSS
15
NC
-
No Connection.
No internal bonding. This pin must be connected to VSS
16
AIN0
I ADC0 Input
Note:
* 1. Digital input pins (CSN, SCK, TEST0, TEST1, TEST2, TEST3) must not be allowed to float.
4.3. Handling of Unused Pin
Unused I/O pins must be connected appropriately.
Classification Pin Name
Setting
Analog
AIN0, AIN1
VSS
014010771-E-00
-4-
2014/12