ASAHI KASEI
[AK4112A]
PIN/FUNCTION
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Pin Name
DVDD
DVSS
TVDD
V
TX
XTI
XTO
PDN
R
AVDD
AVSS
RX1
DIF0
RX2
DIF1
RX3
DIF2
RX4
AUTO
P/S
FS96
ERF
LRCK
SDTO
BICK
DAUX
MCK02
MCK01
OCKS0
CSN
OCKS1
CCLK
CM1
CDTI
CM0
I/O
-
-
-
O
O
I
O
I
-
-
-
I
I
I
I
I
I
I
O
I
O
O
I/O
O
I/O
I
O
O
I
I
I
I
I
I
I
Function
Digital Power Supply Pin, 3.3V
Digital Ground Pin
Input Buffer Power Supply Pin, 3.3V or 5V
Validity Flag Output Pin in Parallel Mode
Transmit channel (through data) Output Pin in Serial Mode
X'tal Input Pin
X'tal Output Pin
Power-Down Mode Pin
When “L”, the AK4112A is powered-down and reset.
External Resistor Pin
18kW +/-1% resistor to AVSS externally.
Analog Power Supply Pin
Analog Ground Pin
Receiver Channel 1
This channel is selected in Parallel Mode or default of Serial Mode.
Audio Data Interface Format 0 Pin in Parallel Mode
Receiver Channel 2 in Serial Mode
Audio Data Interface Format 1 Pin in Parallel Mode
Receiver Channel 3 in Serial Mode
Audio Data Interface Format 2 Pin in Parallel Mode
Receiver Channel 4 in Serial Mode
Non-PCM Detect Pin
“L”: No detect, “H” : Detect
Parallel/Serial Select Pin
“L”: Serial Mode, “H”: Parallel Mode
96kHz Sampling Detect Pin
(RX Mode)
“H” : fs=88.2kHz or more, “L” fs=54kHz or less.
(X’tal Mode) “H” : XFS96=1, “L” : XFS96=0.
Unlock & Parity Error Output Pin
“L”: No Error, “H”: Error
Output Channel Clock Pin
Audio Serial Data Output Pin
Audio Serial Data Clock Pin
Auxiliary Audio Data Input Pin
Master Clock #2 Output Pin
Master Clock #1 Output Pin
Output Clock Select 0 Pin in Parallel Mode
Chip Select Pin in Serial Mode
Output Clock Select 1 Pin in Parallel Mode
Control Data Clock Pin in Serial Mode
Master Clock Operation Mode Pin0 in Parallel Mode
Control Data Input Pin in Serial Mode
Master Clock Operation Mode Pin1 in Parallel Mode
CDTO
O
Control Data Output Pin in Serial Mode
Note 1: All input pins except internal pull-down pins should not be left floating.
MS0020-E-00
-5-
2000/3
AKM [ ASAHI KASEI MICROSYSTEMS ]
