AK4955 Datasheet, PDF (7/117 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP/ LDO & DSP

[AK4955]
ABSOLUTE MAXIMUM RATINGS
(VSS1=VSS2=VSS3= 0V; Note 2)
Parameter
Symbol
min
max
Unit
Power Supplies:
Analog
Digital
Lineout-Amp
Speaker-Amp
AVDD
−0.3
DVDD
−0.3
LVDD
−0.3
SVDD
−0.3
6.0
V
2.5
V
6.0
V
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
(Note 7)
VIND
−0.3
6.0
V
Ambient Temperature (powered applied)
Storage Temperature
Ta
−30
Tstg
−65
85
°C
150
°C
Maximum Power Dissipation (Note 7)
Pd1
-
880
mW
Note 2. All voltages are with respect to ground.
Note 3. VSS1, VSS2 and VSS3 must be connected to the same analog ground plane.
Note 4. MIN, LIN1, RIN1, LIN2, RIN2, VIN pins
Note 5. PDN, CDTIO/CAD0, SDTI, LRCK, BICK, MCKI and I2C pins
Note 6. CSN/SDA and CCLK/SCL pins
Note 7. This power is the AK4955 internal dissipation that does not include power dissipation of externally connected
speakers. The maximum junction temperature is 125°C and θja (Junction to Ambient) is 35°C/W at JESD51-9
(2p2s). When Pd =880mW and the θja is 35°C/W, the junction temperature does not exceed 125°C. In this case,
there is no case that the AK4955 is damaged by its internal power dissipation. Therefore, the AK4955 should be
used in the condition of θja ≤ 35°C/W.
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
Symbol
min
typ
max
Unit
Analog
AVDD
2.7
3.3
3.6
V
Power Supplies Digital
DVDD
1.6
1.8
2.0
V
(Note 8)
Lineout-Amp
LVDD
2.7
3.3
5.5
V
Speaker-Amp
SVDD
2.7
3.3
5.5
V
Digital I/O (Note 9) TVDD DVDD-0.2 or 1.6
1.8
3.6
V
Note 2. All voltages are with respect to ground.
Note 8. The power-up sequence between AVDD, DVDD, TVDD, LVDD and SVDD 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.
Note 9. The minimum value is higher voltage between (DVDD-0.2)V and 1.6V.
* When TVDD is powered ON and the PDN pin is “L”, AVDD DVDD, LVDD and SVDD can be
powered ON/OFF. When the AK4955 is powered ON from power-down state, the PDN pin must
be “H” after all power supplies (AVDD, DVDD, TVDD, LVDD and SVDD) are ON.
* AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
MS1343-E-00
-7-
2011/12