ASAHI KASEI
[AK4140]
PIN/FUNCTION
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Pin Name
FILT
AVSS
AVDD
SIF
DVSS
DVDD
SDTO
SCLK
LRCK
MS
TDMIN
MCLK
SDA
SCL
CAD0
CAD1
INT0
INT1
PDN
I/O
-
-
-
I
-
-
O
I/O
I/O
I
I
I
I/O
I
I
I
O
O
I
Function
Filter Pin
2.2nF should be connected between FILT pin and VSS pin.
Analog Ground Pin
Analog Power Supply Pin, 2.7
∼
3.3V
4.5MHz SIF Input Pin.
Should be AC-coupled with 68nF.
Digital Ground Pin
Digital Power Supply Pin, 2.7
∼
3.3V
Audio Serial Data Output Pin
“L” Output at Power-down mode.
Audio Serial Data Clock Pin
“L” Output in Master Mode at Power-down mode.
Output Channel Clock Pin
“L” Output in Master Mode at Power-down mode.
Master/Slave Control Pin
“H”: Master Mode, “L”: Slave Mode
TDM Serial Data Input Pin
Should be connected to “L” in normal mode.
Master Clock Input Pin
Control Data Pin.
Control Data Clock Pin.
Chip Address Pin 0
Chip Address Pin 1
Interrupt Pin 0
Interrupt Pin 1
Power Down Mode Pin
“H”: Power up, “L”: Power down and reset. The AK4140 must be reset once upon
power-up.
Test Output Pin
Should be open.
Test Input Pin 1 (pull-down pin. typ: 150k ohm.)
Should be connected to DVSS.
Test Input Pin 2
Should be connected to DVSS.
Test Mode Pin 1 (pull-down pin. typ: 150k ohm.)
Should be connected to DVSS.
Test Mode Pin 2 (pull-down pin. typ: 150k ohm.)
Should be connected to DVSS.
20
21
22
23
24
TSTO
TSTI1
TSTI2
TST1
TST2
O
I
I
I
I
MS0547-E-01
-3-
2007/03
AKM [ ASAHI KASEI MICROSYSTEMS ]
