
ASAHI KASEI
[AK4359]
MS0289-E-00
2004/02
- 4 -
PIN/FUNCTION
No.
1
Pin Name
MCLK
I/O
I
Function
Master Clock Input Pin
An external TTL clock should be input on this pin.
Audio Serial Data Clock Pin
DAC1 Audio Serial Data Input Pin
L/R Clock Pin
Reset Mode Pin
When at “L”, the AK4359 is in the reset mode.
The AK4359 should always be reset upon power-up.
Soft Mute Pin in parallel mode
“H”: Enable, “L”: Disable
Chip Select Pin in serial 3-wire mode
Chip Address Pin in serial I2C mode
Auto Setting Mode Pin in parallel mode
“L”: Manual Setting Mode, “H”: Auto Setting Mode
Control Data Clock Pin in serial 3-wire mode
Control Data Clock Pin in serial I2C mode
Audio Data Interface Format Pin in parallel mode
Control Data Input Pin in serial 3-wire mode
Control Data Pin in serial I2C mode
DAC2 Audio Serial Data Input Pin
DAC3 Audio Serial Data Input Pin
DAC4 Audio Serial Data Input Pin
Audio Data Interface Format Pin
De-emphasis Filter Enable Pin
Digital Power Supply Pin, +4.5
~
+5.5V
Digital Ground Pin
Control Mode Select Pin in serial mode
“L”: 3-wire Serial, “H”: I
2
C Bus
De-emphasis Filter Enable Pin in parallel mode
DAC4 Rch Analog Output Pin
DAC4 Rch Analog Output Pin
DAC3 Rch Analog Output Pin
DAC3 Rch Analog Output Pin
DAC2 Rch Analog Output Pin
DAC2 Rch Analog Output Pin
Parallel/Serial Select Pin (Internal pull-up pin)
“L”: Serial control mode, “H”: Parallel control mode
DAC1 Rch Analog Output Pin
DAC1 Lch Analog Output Pin
Common Voltage Pin, AVDD/2
Normally connected to AVSS with a 0.1
μ
F ceramic capacitor in parallel with
a 10
μ
F electrolytic cap.
Analog Ground Pin
Analog Power Supply Pin, +4.5
~
+5.5V
Data Zero Input Detect Pin
Data Zero Input Detect Pin
2
3
4
5
BICK
SDTI1
LRCK
RSTB
I
I
I
I
SMUTE
I
CSN
CAD0
ACKS
I
I
I
6
CCLK
SCL
DIF0
CDTI
SDA
SDTI2
SDTI3
SDTI4
DIF1
DEM0
DVDD
DVSS
I2C
I
I
I
7
8
I/O
I
I
I
I
I
I
9
10
11
12
13
14
15
16
DEM1
ROUT4
LOUT4
ROUT3
LOUT3
ROUT2
LOUT2
P/S
I
O
O
O
O
O
O
I
17
18
19
20
21
22
23
24
25
26
ROUT1
LOUT1
VCOM
O
O
O
27
28
29
30
AVSS
AVDD
DZF2
DZF1
-
-
O
O
Note: All input pins except pull-up pin should not be left floating.