ASAHI KASEI
[AK4122]
External Resistor Pin
25
R
-
-
I
12kΩ±5% resistor should be connected to AVSS externally.
Analog Ground Pin
26 AVSS
27 PDN
Power-Down Mode Pin
“H”: Power up, “L”: Power down reset and initializes the control register.
Input Channel Clock Pin
28 LRCK1
29 BICK1
30 SDTI
I
I
I
-
-
I
Audio Serial Data Clock Pin
Audio Serial Data Input Pin
31 DVSS
32 DVDD
33 MCLK2
34 LRCK2
35 BICK2
36 SDTIO
37 INT0
Digital Ground Pin
Digital Power Supply Pin, 3.0 ∼ 3.6V
Master Clock Input Pin
I/O Input / Output Channel Clock Pin
I/O Audio Serial Data Clock Pin
I/O Audio Serial Data Input / Output Pin
O
O
O
O
Interrupt 0 Pin
38 INT1
Interrupt 1 Pin
39 TX
Transmitter Output Pin
Audio Serial Data Output Pin
40 SDTO
41 BICK
42 LRCK
43 OMCLK
44 DVSS
45 DVDD
I/O Audio Serial Data Clock Pin
I/O Output Channel Clock Pin
I
-
-
Master Clock Input Pin
Digital Ground Pin
Digital Power Supply Pin, 3.0 ∼ 3.6V
Substrate Ground Pin
46 BVSS
-
This pin should be connected to AVSS.
Chip Select Pin
47 CSN
I
I
48 CCLK
Control Data Clock Pin
Note: All input pins except internal biased pins should not be left floating.
MS0267-E-02
2004/07
- 5 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
