AK7770EQ Datasheet, PDF (9/22 Pages) Asahi Kasei Microsystems – Audio DSP with Multi-Channel Audio CODEC

[AK7770]
■ Handling of Unused Pin
The unused I/O pins should be processed appropriately as below.
Classification
Analog
Digital
Pin Name
FRIR1-2, FRIL1-2, FROL1-2, FROR1-2, XTO,
AOUTL1-2, AOUTR1-2, AINL1-4, AINR1-4
LRCLKO,CLKO, BITCLKO, SDOUT1-3, HPEN, HPR,
HPL
TESTI2, CLK1-3, BITCLK1-3, LRCLK1-3 SDIN1-3,
HDT
HMUTEN
Setting
These pins should be open.
These pins should be open.
These pins should be connected to VSS3.
This pin should be connected to DVDD.
ABSOLUTE MAXIMUM RATINGS
(VSS1 = VSS2 = VSS3=0V: Note 3)
Parameter
Symbol
min
max
Power supply voltage
Analog
AVDD
-0.3
4.3
Analog
HVDD
-0.3
4.3
Digital
DVDD
-0.3
4.3
Digital
DVDD18
-0.3
2.5
Input current (except power supply pins)
IIN
-
±10
Analog input voltage
VINA
AINL1~AINL4, AINR1~AINR4
-0.3
AVDD+0.3
FRIL1, FRIL2, FRIR1, FRIL2
Digital input voltage
VIND
-0.3
DVDD+0.3
Ambient operating temperature
Ta
-10
70
Storage temperature
Tstg
-65
150
Note 3. All voltages referred to ground. Connect VSS1, VSS2, VSS3 to the same ground plane.
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
Units
V
V
V
V
mA
V
V
°C
°C
RECOMMENDED OERATING CONDITIONS
(VSS1 = VSS2 = VSS3=0V: Note 3)
Parameter
Symbol
min
typ
max
Supply
voltage
Analog
Analog
Digital
Digital
AVDD
HVDD
DVDD
DVDD18
3.0
3.3
3.6
3.0
3.3
3.6
3.0
3.3
3.6
1.7
1.8
1.9
Difference
Difference
Difference
HVDD-AVDD -0.3
0
+0.3
HVDD-DVDD -0.3
0
+0.3
AVDD-DVDD -0.3
0
+0.3
Units
V
V
V
V
V
V
V
Note 4. The power supply sequence for AVDD HVDD, DVDD, DVDD18 is not critical but all power supplies must be
On before start operating the AK7770.
Note 5. Do not turn off the power supply of the AK7770 with the power supply of the surrounding device turned on.
DVDD must not exceed the pull-up of SDA and SCL of I²C BUS. (The diode exists for DVDD in the SDA and
SCL pins.)
*AKEMD assumes no responsibility for the usage beyond the conditions in this datasheet.
MS0699-E-01-PB
-9-
2008/06