[AK4344]
PIN/FUNCTION
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
MCLK
BICK
SDTI1
LRCK
PDN
CSN
CCLK
CDTI
TEST1
ROUT
LOUT
VCOM
VSS
VDD
CDTO
SDTI2
TEST2
I/O
I
I
I
I
I
I
I
I
I
O
O
O
-
-
O
I
O
Function
Master Clock Input Pin
Audio Serial Data Clock Pin
Audio Serial Data Input Pin1
Input Channel Clock Pin
Full Power Down Mode Pin
“L” : Power down, “H” : Power up
Chip Select Pin 0
Control Data Clock Pin
Control Data Input Pin
TEST Pin
This pin must be connected to VSS.
Rch Analog Output Pin, The output is “Hi-Z” when PDN pin = “L”.
Lch Analog Output Pin, The output is “Hi-Z” when PDN pin = “L”.
Common Voltage Output Pin, 0.5
×
VDD
Normally connected to VSS with a 4.7μF (min. 1μF, max. 10μF) electrolytic
Capacitor. The output is “L” when PDN pin = “L”
Ground Pin
Power Supply Pin, 2.7
∼
3.6V
Control Data Output Pin in serial mode, The output is “Hi-Z” when PDN pin = “L”.
Audio Serial Data Input Pin2
TEST Pin
This pin must be OPEN.
Note: All digital input pins should not be left floating.
MS0641-E-00
-4-
2007/06
AKM [ ASAHI KASEI MICROSYSTEMS ]
