AK7755EN_16 Datasheet, PDF (11/109 Pages) Asahi Kasei Microsystems – DSP with Mono ADC Stereo CODEC + Mic/Lineout Amp

[AK7755]
6. Absolute Maximum Ratings
(AVSS=DVSS=0V; Note 2)
Parameter
Symbol
min
max
Unit
Power Supplies
Analog
AVDD
-0.3
Digital1(I/F)
TVDD
-0.3
Digital2(Core)
DVDD
-0.3
DVSS-AVSS (Note 2)
ΔGND
-0.3
Input Current, Any Pin Except Supplies
IIN
－
4.3
V
4.3
V
1.6
V
0.3
V
±10
mA
Analog Input Voltage (Note 3)
Digital Input Voltage (Note 4)
Ambient Temperature
VINA
VIND
Ta
-0.3
(AVDD+0.3)≤4.3 V
-0.3
(TVDD+0.3)≤4.3 V
-40
85
℃
Storage Temperature
Tstg
-65
150
℃
Note 2. All voltages with respect to ground. AVSS and DVSS must be the same voltage.
Note 3. The maximum analog input voltage is smaller value between (AVDD+0.3)V and 4.3V.
Note 4. The maximum digital input voltage is smaller value between (DVDD+0.3)V and 4.3V.
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
(AVSS=DVSS=0V; Note 2)
Parameter
Symbol min typ max Unit
Power Supplies
Analog
AVDD 3.0
3.3
3.6
V
Digital1(I/F)
TVDD 1.7
3.3
3.6
V
Digital2(Core)
DVDD 1.14 1.2
1.3
V
Note 5. AVDD and TVDD must be powered up first before DVDD when DVDD is supplied externally
(LDOE pin = “L”). In this case, the power-up sequence between AVDD and TVDD is not critical.
When using the internal regulator (LDOE pin = “H”), the power-up sequence between AVDD and
TVDD is not critical. But all power supplies must be ON before starting operation of the AK7755
by PDN pin = “H”.
Note 6. Do not turn off the power supply of the AK7755 with the power supply of the surrounding device
turned on. Pull-up of SDA and SCL pins must not exceed TVDD.
* AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
014006643-E-00
- 11 -
2014/10