WM9715L
Production Data
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at
or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical
Characteristics at the test conditions specified.
ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible
to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage
of this device.
Wolfson tests its package types according to IPC/JEDEC J-STD-020B for Moisture Sensitivity to determine acceptable storage
conditions prior to surface mount assembly. These levels are:
MSL1 = unlimited floor life at <30°C / 85% Relative Humidity. Not normally stored in moisture barrier bag.
MSL2 = out of bag storage for 1 year at <30°C / 60% Relative Humidity. Supplied in moisture barrier bag.
MSL3 = out of bag storage for 168 hours at <30°C / 60% Relative Humidity. Supplied in moisture barrier bag.
The Moisture Sensitivity Level for each package type is specified in Ordering Information.
CONDITION
Digital supply voltages (DCVDD, DBVDD)
Analogue supply voltages (AVDD, HPVDD, SPKVDD, TPVDD)
Touchpanel supply voltage (TPVDD)
MIN
-0.3V
MAX
+3.63V
-0.3V
+3.63V
AVDD -0.3V
DGND -0.3V
AGND -0.3V
AVDD +0.3V
DBVDD +0.3V
AVDD +0.3V
TPVDD +0.3V
AVDD +0.3V
+5V
Voltage range digital inputs
Voltage range analogue inputs
Voltage range touchpanel Inputs X+, X-, Y+ and Y-
Voltage range touchpanel Inputs X+, X-, Y+ and Y-
Voltage range, BMON/AUX3 (pin31)
Operating temperature range, TA
-25oC
+85oC
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Digital input/output buffer
supply range
DBVDD
Notes 1, 2
1.8
3.6 or
AVDD+0.3
V
V
V
Digital core supply range
DCVDD
Notes 1, 2
1.8
1.8
3.6 or
AVDD+0.3
Analogue supply range
AVDD, HPVDD,
3.6
SPKVDD, TPVDD
Digital ground
DCGND, DBGND
0
0
V
V
Analogue ground
AGND, HPGND,
SPKGND, TPGND
Difference AGND to DGND
Note 3
-0.3
0
+0.3
V
Notes:
1. AVDD, DCVDD and DBVDD can all be different
2. Digital supplies (DCVDD, DBVDD) must not exceed analogue supplies (AVDD, HPVDD, SPKVDD, TPVDD) by more
than 0.3V
3. AGND is normally the same as DGND
4. DCVDD must be lower than or equal to DBVDD
PD Rev 4.0 December 2007
6
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
