ASAHI KASEI
[AK4393]
PIN/FUNCTION
No.
1
Pin Name
I/O
Function
DVSS
DVDD
MCLK
PDN
-
-
I
I
Digital Ground Pin
2
Digital Power Supply Pin, 3.3V or 5.0V
Master Clock Input Pin
3
Power-Down Mode Pin
4
5
When at “L”, the AK4393 is in power-down mode and is held in reset.
The AK4393 should always be reset upon power-up.
Audio Serial Data Clock Pin
BICK
I
I
The clock of 64fs or more than is recommended to be input on this pin.
Audio Serial Data Input Pin
SDATA
6
7
2’s complement MSB-first data is input on this pin.
L/R Clock Pin
LRCK
I
I
SMUTE
Soft Mute Pin in parallel mode
When this pin goes "H", soft mute cycle is initiated.
When returning “L”, the output mute releases.
Chip Select Pin in serial mode
8
CSN
DFS
I
I
Double Speed Sampling Mode Pin
“L”: Normal Speed , “H”: Double Speed
De-emphasis Enable Pin in parallel mode
Control Data Clock Pin in serial mode
De-emphasis Enable Pin in parallel mode
Control Data Input Pin in serial mode
Digital Input Format Pin
(Internal pull-down pin)
9
DEM0
CCLK
DEM1
CDTI
I
I
10
11
I
I
12
13
14
15
16
17
18
19
20
21
22
23
24
25
DIF0
I
DIF1
I
Digital Input Format Pin
DIF2
I
Digital Input Format Pin
BVSS
-
Substrate Ground Pin, 0V
VREFL
VREFH
AVDD
AVSS
I
Low Level Voltage Reference Input Pin
High Level Voltage Reference Input Pin
Analog Power Supply Pin, 5.0V
Analog Ground Pin, 0V
I
-
-
AOUTR-
AOUTR+
AOUTL-
AOUTL+
VCOM
P/S
O
O
O
O
O
I
Rch Negative analog output Pin
Rch Positive analog output Pin
Lch Negative analog output Pin
Lch Positive analog output Pin
Common Voltage Output Pin, 2.6V
Parallel/Serial Select Pin
(Internal pull-up pin)
“L”: Serial control mode, “H”: Parallel control mode
Master Clock Select Pin
26
27
28
CKS0
CKS1
CKS2
I
I
I
Master Clock Select Pin
Master Clock Select Pin
Note: All input pins except internal pull-up/down pins should not be left floating.
M0039-E-01
2000/5
- 3 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
