ASAHI KASEI
No. Pin Name
[AK4522]
PIN/FUNCTION
I/O
I
Function
Positive Voltage Reference Input Pin, VA
1
VREFH
Used as a positive voltage reference by ADC & DAC. VREFH should be connected
externally to filtered VA.
2
3
4
5
6
7
8
9
AINR+
AINR-
AINL+
AINL-
VA
I
I
Rch Analog Positive Input Pin
Rch Analog Negative Input Pin
Lch Analog Positive Input Pin
Lch Analog Negative Input Pin
Analog Power Supply Pin
I
I
-
AGND
DIF0
-
Analog Ground Pin
I
Audio Data Interface Format Pin
Audio Data Interface Format Pin
Input/Output Channel Clock Pin
Audio Serial Data Clock Pin
DIF1
I
10 LRCK
11 SCLK
12 SDTI
13 SDTO
I
I
I
Audio Serial Data Input Pin
O
Audio Serial Data Output Pin
Soft Mute Pin
14 SMUTE
I
When this pin goes “H”, soft mute cycle is initiated.
When returning “L”, the output mute releases.
De-emphasis Frequency Select Pin
De-emphasis Frequency Select Pin
Master Clock Input/X’tal Input Pin
Digital Power Supply Pin
15 DEM0
16 DEM1
17 MCKI
18 VD
I
I
I
-
-
I
19 DGND
Digital Ground Pin
20
PD
Reset Pin
Master Clock Select Pin
(Internal Biased pin)
21 CMODE
I
“H”: 384fs, “L”: 256fs, “NC”: 512fs
Lch Analog Output Pin
22 AOUTL
23 AOUTR
24 VCOM
I
I
Rch Analog Output Pin
O
Common Voltage Output Pin, VA/2
Note: All input pins except pull-down pins should not be left floating.
M0020-E-02
2012/01
- 3 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
