AK4950 Datasheet, PDF (6/106 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP & mini DSP

[AK4950]
■ Handling of Unused Pin
Unused I/O pins must be processed appropriately as below.
Classification Pin Name
Analog
MPWR, SPN, SPP, ROUT/MIN, LOUT, RIN2,
LIN2, LIN1/DMDAT, RIN1/DMCLK, VIN, VOUT
Digital
MCKO
MCKI
Setting
These pins must be open.
This pin must be open.
This pin must be connected to VSS2.
ABSOLUTE MAXIMUM RATINGS
(VSS1=VSS2=VSS3=VSS4=0V; Note 2)
Parameter
Symbol
min
max
Unit
Power Supplies: Analog
AVDD
−0.3
6.0
V
Digital I/O
TVDD
−0.3
6.0
V
Input Current, Any Pin Except Supplies
IIN
-
±10
mA
Analog Input Voltage (Note 4)
VINA
−0.3
AVDD+0.3
V
Digital Input Voltage (Note 5)
VIND
−0.3
TVDD+0.3
V
Ambient Temperature (powered applied)
Ta
−30
85
°C
Storage Temperature
Tstg
−65
150
°C
Maximum Power Dissipation (Note 6)
Pd1
-
450
mW
Note 2. All voltages are with respect to ground.
Note 3. VSS1, VSS2, VSS3 and VSS4 must be connected to the same analog ground plane.
Note 4. MIN, LIN1, RIN1, LIN2, RIN2, VIN, I2C pins
Note 5. PDN, CSN, CCLK, CDTIO, SDTI, LRCK, BICK, MCKI pins
Note 6. In case that PCB wiring density is over 200% and its surface wiring density is over 50%. This power is the
AK4950 internal dissipation that does not include power dissipation of externally connected speakers.
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=VSS4=0V; Note 2)
Parameter
Symbol
min
typ
max
Unit
Power Supplies Analog
AVDD
2.7
3.3
3.6
V
(Note 7) Digital I/O
TVDD
1.6
1.8
3.6
V
Note 2. All voltages are with respect to ground.
Note 7. The power-up sequence between AVDD and TVDD is not critical. The PDN pin must be “L” upon power up, and
should be changed to “H” after all power supplies are supplied to avoid an internal circuit error.
* When TVDD is powered ON and the PDN pin is “L”, AVDD can be powered ON/OFF. When the
AK4950 is powered ON from power-down state, the PDN pin must be “H” after all power
supplies are ON.
* AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
MS1320-E-00
-6-
2011/10