AK9223MK Datasheet, PDF (3/16 Pages) Asahi Kasei Microsystems – Dual 1-Bit, 10MHz, 2nd-Order, ΔΣ Modulat

[AK9223]
Pin Functions
Pin No. Pin Name I/O
Function
1
AVDD
-
Analog Power Supply: 4.5V to 5.5V
Connect to VSS1~VSS4 with a 0.1μF ceramic capacitor.
2
VSS1
- Ground
3
REFI0
I Reference Voltage input for Channel 0
4
TEST0
-
TEST Pin.
This pin must be open.
5
AIN0+
I Channel 0 Analog input+
6
AIN0-
I Channel 0 Analog input-
7
AIN1+
I Channel 1 Analog input+
8
AIN1-
I Channel 1 Analog input-
9
TEST1
-
TEST Pin.
This pin must be open.
10
REFI1
I Reference Voltage input for Channel 1
11
VSS2
- Ground
12
AVDD
-
Analog Power Supply: 4.5V to 5.5V
Connect to VSS1~VSS4 with a 0.1μF ceramic capacitor.
13
AVDD
-
Analog Power Supply: 4.5V to 5.5V
Connect to VSS1~VSS4 with a 0.1μF ceramic capacitor.
14
VSS3
- Ground
15
SEL
I
Clock select input
“H”: internal oscillator, “L”: external clock source
16
CLKI
I
External clock input
If not used, must be tied to DVDD or VSS5
17
DVDD
-
Digital Power Supply: 2.7 V to 3.6V (or 4.5V to 5.5V)
Connect to VSS5 with a 0.1μF ceramic capacitor.
18
VSS5
- Ground
19
CLKO
O Clock output
20
OUT1
O Data output of Channel 1 modulator
21
OUT0
O Data output of Channel 0 modulator
22
VSS4
- Ground
23
REF0
I Reference Voltage input for Channel 0
24
AVDD
-
Analog Power Supply: 4.5V to 5.5V
Connect to VSS1~VSS4 with a 0.1μF ceramic capacitor.
Note 1. Digital input pins (SEL, CLKI) must not be allowed to float.
■ Handling of Unused Pin
Unused I/O pins must be connected appropriately.
Classification Pin Name
Analog
AIN0+, AIN0-, AN1+, AIN1-, REFI0, REFI1
Setting
VSS
014010283-E-01
3
2015/01