AK4421 Datasheet, PDF (3/19 Pages) Asahi Kasei Microsystems – 192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output

[AK4421]
PIN/FUNCTION
No. Pin Name
I/O Function
Negative Charge Pump Capacitor Terminal Pin
1 CN
Connect to CP with a 1.0μF low ESR (Equivalent Series Resistance) capacitor
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
2 CP
Connect to CN with a 1.0μF low ESR (Equivalent Series Resistance)
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.
3 SMUTE
I
Soft Mute Enable Pin (Internal pull down: 100kΩ)
“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
8 DIF
I
Audio Data Interface Format Pin
“L”: Left Justified, “H”: I2S
9 AOUTR
O
Right channel Analog Output Pin
When PDN pin = “L”, outputs VCOM voltage(0V, typ).
10 AOUTL
O
Left channel Analog Output Pin
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
14 CVDD
O Zero Input Detect Pin
-
Charge Pump Power Supply Pin, 3.0V∼3.6V
15 VSS2
- Ground Pin 2
Negative Voltage Output Pin
16 VEE
O
Connect to VSS2 with a 1.0μF low ESR capacitor over temperature. When
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.
MS0945-E-01
-3-
2008/08