AK7841 Datasheet, PDF (5/21 Pages) Asahi Kasei Microsystems – Monaural Audio Class-D Amp with Power Booster for PiezoSpeaker

ASAHI KASEI
[AK7841]
ABSOLUTE MAXIMUM RATINGS
(VSS1=VSS2=VSS3=0V; Note 2)
Parameter
Power Supplies
Battery
Class-D Amp
Digital I/F
|VSS2-VSS1| (Note 3)
|VSS2-VSS3| (Note 3)
Input Current (any pins except for supplies)
Analog Input Voltage(Note 4) (Note 6)
Digital Input Voltage (Note 5) (Note 6)
Ambient Temperature
Storage Temperature
Symbol
VBAT
VDD1
DVDDI
∆GND1
∆GND2
IIN
VINA
VIND
Ta
Tstg
Min.
Max.
Units
−0.3
6.5
V
−0.3
10
V
−0.3
6.5
V
-
0.3
V
-
0.3
V
-
±10
mA
−0.3
VBAT+0.3 V
−0.3
DVDDI+0.3 V
−30
85
°C
−65
150
°C
Note 2. All voltages are with respect to ground.
Note 3. VSS1, VSS2, VSS3 pins must be connected to the same analog ground plane.
Note 4. IPN and INN pin.
Note 5. PDN, PG0, PG1, PG2, SDSEL pin.
Note 6. Maximum value must not exceed 6.5V even if VBAT or DVDDI are more than 6.2V.
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
(VSS1=VSS2=VSS3=0V;Note 2)
Parameter
Power Supplies
Battery (Note 7)
Class-D Amp (Note 8)
Digital I/F (Note 7)
Symbol
Min.
Typ.
VBAT
2.7
3.6
VDD1
-
8.75
DVDDI
1.65
2.8
Note 7. Have to be “VBAT≧ DVDDI”
Note 8. Supply with boosted voltage (typ. 8.75V) by the Power Booster.
* AKEMD assumes no responsibility for usage beyond the conditions in this datasheet.
Max. Unit
4.5
V
-
V
4.5
V
Rev.08
2008/3
-5-