Characteristic and specification tables, Recommended operating conditions, Absolute maximum ratings – Cirrus Logic CS42L55 User Manual
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DS773F1
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CS42L55
3. CHARACTERISTIC AND SPECIFICATION TABLES
RECOMMENDED OPERATING CONDITIONS
GND = AGND = 0 V, all voltages with respect to ground.
ABSOLUTE MAXIMUM RATINGS
GND = AGND = 0 V; all voltages with respect to ground.
WARNING: Operation at or beyond these limits may result in permanent damage to the device. Normal operation
is not guaranteed at these extremes.
Notes:
1.
Due to the existence of parasitic body diodes between VCP and VA, current flows from VCP to VA when-
ever the VA power supply is lower than VCP. This causes a “back-powering” effect on the VA power
supply rails internal to the part. Hence VA should be maintained at an equal or greater voltage than VCP
at all times. While “back-powering” does not have any adverse effects on device operation with respect
to performance and reliability, it does lead to extra power consumption and therefore should be avoided.
2.
Any pin except supplies. Transient currents of up to ±100 mA on the analog input pins will not cause
SCR latch-up.
3.
The maximum over/under voltage is limited by the input current.
Parameters
Symbol Min Max
Units
DC Power Supply
Analog
VA
1.65
2.71
V
Charge Pump
VCP
1.65
VA
V
LDO Regulator for Digital
VLDO
1.65
2.71
V
Serial/Control Port Interface
VL
1.65
3.47
V
Ambient Temperature
Commercial - CNZ
T
A
-40
+85
°C
Parameters
Symbol
Min
Max
Units
DC Power Supply
Analog, Charge Pump, LDO
Serial/Control Port Interface
VA, VCP, VLDO
VL
-0.3
-0.3
3.0
4.0
V
V
Input Current
I
in
-
±10
mA
Analog Input Voltage
V
IN
AGND-0.7
VA+0.7
V
Digital Input Voltage
V
IND
-0.3
VL+0.4
V
Ambient Operating Temperature (power applied)
T
A
-50
+115
°C
Storage Temperature
T
stg
-65
+150
°C