
Q218: HIGH FEATURE96kHz 24bit DIR (AK4112BVF)-3
PIN DESCRIPTION
No.
Pin Name
I/O
Function
V
O
Validity Flag Output Pin in Parallel Mode
1
TX
O
Transmit channel (through data) Output Pin in Serial Mode
2
XTI
I
X'tal Input Pin
3
XTO
O
X'tal Output Pin
4
PDN
I
Power-Down Mode Pin
When “L”, the AK4112B is powered-down and reset.
5
R
-
External Resistor Pin
18k
Ω
+/-1% resistor to AVSS externally.
6
AVDD
-
Analog Power Supply Pin
7
AVSS
-
Analog Ground Pin
8
RX1
I
Receiver Channel 1
This channel is selected in Parallel Mode or default of Serial Mode.
DIF0
I
Audio Data Interface Format 0 Pin in Parallel Mode
9
RX2
I
Receiver Channel 2 in Serial Mode
DIF1
I
Audio Data Interface Format 1 Pin in Parallel Mode
10
RX3
I
Receiver Channel 3 in Serial Mode
DIF2
I
Audio Data Interface Format 2 Pin in Parallel Mode
11
RX4
I
Receiver Channel 4 in Serial Mode
12
AUTO
O
Non-PCM Detect Pin
“L”: No detect, “H” : Detect
13
P/SN
I
Parallel/Serial Select Pin
“L”: Serial Mode, “H”: Parallel Mode
14
FS96
O
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.
15
ERF
O
Unlock & Parity Error Output Pin
“L”: No Error, “H”: Error
16
LRCK
I/O
Output Channel Clock Pin
O
Audio Serial Data Output Pin
I/O
Audio Serial Data Clock Pin
I
Auxiliary Audio Data Input Pin
O
Master Clock #2 Output Pin
O
Master Clock #1 Output Pin
I
Output Clock Select 0 Pin in Parallel Mode
I
Chip Select Pin in Serial Mode
I
Output Clock Select 1 Pin in Parallel Mode
I
Control Data Clock Pin in Serial Mode
CM1
I
Master Clock Operation Mode Pin0 in Parallel Mode
24
CDTI
I
Control Data Input Pin in Serial Mode
CM0
I
Master Clock Operation Mode Pin1 in Parallel Mode
25
CDTO
O
Control Data Output Pin in Serial Mode
26
DVDD
-
Digital Power Supply Pin, 3.3V
27
DVSS
-
Digital Ground Pin
28
TVDD
-
Input Buffer Power Supply Pin, 3.3V or 5V
Note
1
: All input pins except internal pull-down pins should not be left floating.
A-5VL
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