AK4637 Datasheet, PDF (10/96 Pages) Asahi Kasei Microsystems – 24bit Mono CODEC with MIC - SPK-AMP

[AK4637]
6. Absolute Maximum Ratings
(VSS1=VSS2=0V; Note 2)
Parameter
Symbol
Min.
Max.
Unit
Power Supplies
Analog
Digital
Digital I/O
Speaker-Amp
AVDD
0.3
DVDD
0.3
TVDD
0.3
SVDD
0.3
6.0
V
2.5
V
6.0
V
6.0
V
Input Current, Any Pin Except Supplies
IIN
-
10
mA
Analog Input Voltage (Note 3)
VINA
0.3
AVDD+0.3
V
Digital Input Voltage (Note 4)
VIND
0.3
TVDD+0.3
V
Operating Temperature (powered applied)
Ta
40
85
C
Storage Temperature
Tstg
65
150
C
Maximum Power Dissipation (Note 5)
Pd
-
800
mW
Note 2. All voltages are with respect to ground.
VSS1 and VSS2 must be connected to the same analog ground plane.
Note 3. AIN/IN+ and BEEP/IN- pins
Note 4. PDN, SCL, SDA, SDTI, FCK, BICK and MCKI pins
Pull-up resistors at the SDA and SCL pins must be connected to a voltage in the range from TVDD
or more to 6V or less.
Note 5. This power is the AK4637 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
50C/W at JESD51-9 (2p2s) for the AK4637. When Pd = 800mW and the θja is 50C/W for the
AK4637, the junction temperature does not exceed 125C. In this case, the AK4637 will not be
damaged by its internal power dissipation. Therefore, the AK4637 should be used in the condition
of θja ≤ 50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.
7. Recommended Operating Conditions
(VSS1=VSS2=0V; Note 2)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power Supplies Analog
AVDD
2.8
3.3
3.5
V
(Note 6) Digital
DVDD
1.6
1.8
1.98
V
Digital I/O (Note 7)
TVDD
1.6 or
(DVDD-0.2)
1.8
3.5
V
Note 2. All voltages are with respect to ground.
Note 6. The power-up sequence between AVDD, DVDD, TVDD 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 7. The minimum value is higher voltage between DVDD-0.2 and 1.6V.
* When TVDD is powered ON and the PDN pin is “L”, AVDD and DVDD can be powered
ON/OFF. The PDN pin must be set to “H” after all power supplies are ON, when the
AK4637EN is powered-up from power-down state.
WARNING: AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
015010680-E-00
- 10 -
2015/09