[AK4420]
PIN/FUNCTION
No.
Pin Name
I/O
Function
Negative Charge Pump Capacitor Terminal Pin
Connect to CP with a 1.0μF capacitor that should have the low ESR
(Equivalent
Series Resistance)
over all temperature range. When this
capacitor has the polarity, the positive polarity pin should be connected to the
CP pin. Non polarity capacitors can also be used.
Positive Charge Pump Capacitor Terminal Pin
Connect to CN with a 1.0μF capacitor that should have the low ESR
(Equivalent
Series Resistance)
over all temperature range. When this
capacitor has the polarity, the positive polarity pin should be connected to the
CP pin. Non polarity capacitors can also be used.
Soft Mute Enable Pin (Internal pull down: 100kΩ)
“H”: Enable, “L”: Disable
Master Clock Input Pin
An external TTL clock should be input on this pin.
Audio Serial Data Clock Pin
Audio Serial Data Input Pin
L/R Clock Pin
Audio Data Interface Format Pin
“L”: Left Justified, “H”: I2S
Rch Analog Output Pin
When power down, outputs VSS(0V, typ).
Lch Analog Output Pin
When power down, outputs VSS(0V, typ).
DAC Power Supply Pin: 4.5V∼5.5V
Ground Pin1
1
CN
I
2
CP
I
3
4
5
6
7
8
9
10
11
12
13
14
15
SMUTE
MCLK
BICK
SDTI
LRCK
DIF
AOUTR
AOUTL
VDD
VSS1
DZF
CVDD
VSS2
I
I
I
I
I
I
O
O
-
-
O
-
-
Zero Input Detect Pin
Charge Pump Power Supply Pin: 4.5V∼5.5V
Ground Pin2
Negative Voltage Output Pin
Connect to VSS2 with a 1.0μF capacitor that should have the low ESR
16
(Equivalent
Series Resistance)
over all temperature range. When this
VEE
O
capacitor has the polarity, the positive polarity pin should be connected to the
VSS2 pin. Non polarity capacitors can also be used.
Note: All input pins except for the CN pin should not be left floating.
MS0683-E-02
-3-
2007/12
AKM [ ASAHI KASEI MICROSYSTEMS ]
