[AK4421]
PIN/FUNCTION
Function
Negative Charge Pump Capacitor Terminal Pin
Connect to CP with a 1.0μF low ESR (Equivalent Series Resistance) capacitor
1
CN
I
over temperature. When this capacitor is polarized, the positive polarity pin
should be connected to the CP pin. Non-polarized capacitors can also be
used.
Positive Charge Pump Capacitor Terminal Pin
Connect to CN with a 1.0μF low ESR (Equivalent Series Resistance)
2
CP
I
capacitor over temperature. When this capacitor is polarized, the positive
polarity pin should be connected to the CP pin. Non-polarized capacitors can
also be used.
Soft Mute Enable Pin (Internal pull down: 100kΩ)
3
SMUTE
I
“H”: Enable, “L”: Disable
4
MCLK
I
Master Clock Input Pin
5
BICK
I
Audio Serial Data Clock Pin
6
SDTI
I
Audio Serial Data Input Pin
7
LRCK
I
L/R Clock Pin
Audio Data Interface Format Pin
8
DIF
I
“L”: Left Justified, “H”: I2S
Right channel Analog Output Pin
9
AOUTR
O
When PDN pin = “L”, outputs VCOM voltage(0V, typ).
Left channel Analog Output Pin
10
AOUTL
O
When PDN pin = “L”, outputs VCOM voltage(0V, typ).
11
VDD
-
DAC Power Supply Pin, 3.0V∼3.6V
12
VSS1
-
Ground Pin 1
13
DZF
O
Zero Input Detect Pin
14
CVDD
-
Charge Pump Power Supply Pin, 3.0V∼3.6V
15
VSS2
-
Ground Pin 2
Negative Voltage Output Pin
Connect to VSS2 with a 1.0μF low ESR capacitor over temperature. When
16
VEE
O
this capacitor is polarized, the positive polarity pin should be connected to
the VSS2 pin. Non-polarized capacitors can also be used.
Note: All input pins except for the CN pin should not be left floating.
No.
Pin Name
I/O
MS0945-E-01
-3-
2008/08
AKM [ ASAHI KASEI MICROSYSTEMS ]
