ASAHI KASEI
[AK4370]
■ Handling of Unused Pin
The unused I/O pins should be processed appropriately as below.
Classification
Analog
Pin Name
Setting
These pins should be open.
LOUT, ROUT, MUTET, HPL, HPR, LIN2, RIN2,
RIN1/IN+, LIN1/IN−
Digital
MCKI
This pin should be connected to VSS2.
ABSOLUATE MAXIMUM RATING
(VSS1, VSS2=0V; Note 2, Note 3)
Parameter
Power Supplies
Symbol
AVDD
DVDD
HVDD
IIN
VINA
VIND
Ta
min
−0.3
−0.3
−0.3
-
−0.3
−0.3
−30
−65
max
4.6
4.6
4.6
Units
V
V
V
mA
V
V
°C
°C
Analog
Digital
HP-Amp
Input Current (any pins except for supplies)
Analog Input Voltage (Note 4)
Digital Input Voltage (Note 5)
Ambient Temperature
±10
(AVDD+0.3) or 4.6
(DVDD+0.3) or 4.6
85
Storage Temperature
Tstg
150
Note 2. All voltages with respect to ground.
Note 3. VSS1 and VSS2 must be connected to the same analog ground plane.
Note 4. LIN1/IN−, RIN1/IN+, LIN2 and RIN2 pins. Max is smaller value between (AVDD+0.3)V and 4.6V.
Note 5. SDA/CDTI, SCL/CCLK, CAD0/CSN, SDATA, LRCK, BICK, MCKI, PDN and I2C pins. Max is smaller value
between (DVDD+0.3)V and 4.6V.
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
RECOMMEND OPERATING CONDITIONS
(VSS1, VSS2=0V; Note 2)
Parameter
Power Supplies Analog
(Note 6)
Symbol
AVDD
DVDD
min
1.6
1.6
1.6
−0.3
typ
2.4
2.4
2.4
0
max
3.6
Units
V
V
V
V
Digital (Note 7)
HP-Amp
Difference
(AVDD+0.2) or 3.6
HVDD
AVDD−HVDD
3.6
+0.3
Note 2. All voltages with respect to ground.
Note 6. When AVDD and DVDD are supplied separately, AVDD should be powered-up after DVDD rises up to 1.6V or
more. When the AK4370 is powered-down, DVDD should be powered-down at the same time or later than
AVDD. When AVDD and HVDD are supplied separately, AVDD should be powered-up at the same time or
earlier than HVDD. When the AK4370 is powered-down, AVDD should be powered-down at the same time or
later than HVDD.
Note 7. Max is smaller value between (AVDD+0.2)V and 3.6V.
* AKM assumes no responsibility for usage beyond the conditions in this datasheet.
MS0595-E-00
2007/03
- 6 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
