ASAHI KASEI
[AK4644]
Handling of Unused Pin
The unused I/O pins should be processed appropriately as below.
Classification
Analog
Digital
Pin Name
MPWR, VCOC/RIN3, HPR, HPL, MUTET,
ROUT/RCN, LOUT/RCP, MIN/LIN3,
RIN2/IN2−, LIN2/IN2+, LIN1/IN1−, RIN1/IN1+
MCKO
MCKI
Setting
These pins should be open.
This pin should be open.
This pin should be connected to DVSS.
ABSOLUTE MAXIMUM RATINGS
(AVSS, DVSS, HVSS=0V; Note 3)
Parameter
Power Supplies:
Analog
Digital
Headphone-Amp
|AVSS – DVSS| (Note 4)
|AVSS – HVSS| (Note 4)
Input Current, Any Pin Except Supplies
Analog Input Voltage (Note 5)
Digital Input Voltage (Note 6)
Ambient Temperature (powered applied)
Storage Temperature
Symbol
AVDD
DVDD
HVDD
∆GND1
∆GND2
IIN
VINA
VIND
Ta
Tstg
min
−0.3
−0.3
−0.3
-
-
-
−0.3
−0.3
−30
−65
max
6.0
6.0
6.0
0.3
0.3
±10
AVDD+0.3
DVDD+0.3
85
150
Units
V
V
V
V
V
mA
V
V
°C
°C
Note 3. All voltages with respect to ground.
Note 4. AVSS, DVSS and HVSS must be connected to the same analog ground plane.
Note 5. I2C, MIN/LIN3, RIN3, RIN2/IN2−, LIN2/IN2+, LIN1/IN1−, RIN1/IN1+ pins
Note 6. PDN, CSN/CAD0, CCLK/SCL, CDTI/SDA, SDTI, LRCK, BICK, MCKI pins
Pull-up resistors at SDA and SCL pins should be connected to (DVDD+0.3)V or less voltage.
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
RECOMMENDED OPERATING CONDITIONS
(AVSS, DVSS, HVSS=0V; Note 3)
Parameter
Symbol
min
typ
Power Supplies Analog
AVDD
2.6
3.3
(Note 7) Digital
DVDD
2.6
3.3
HP-Amp
HVDD
2.6
3.3 / 5.0
Difference
0
AVDD−DVDD
−0.3
max
3.6
3.6
5.25
+0.3
Units
V
V
V
V
Note 3. All voltages with respect to ground.
Note 7. The power-up sequence between AVDD, DVDD and HVDD is not critical. When only AVDD or HVDD is
powered OFF, the power supply current of DVDD at power-down mode may be increased. DVDD should not be
powered OFF while AVDD or HVDD is powered ON.
* AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
MS0477-E-01
-6-
2006/10
AKM [ ASAHI KASEI MICROSYSTEMS ]
