wm9001 Wolfson Microelectronics plc, wm9001 Datasheet - Page 5

• Manufacturer Part Number: wm9001
• Description: 1w Dual-mode Class Ab/d Speaker Driver
• Manufacturer: Wolfson Microelectronics plc

Pre-Production
Analogue supply
Speaker supply
Ground
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.
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.
AVDD
SPKVDD
Digital Inputs voltage range
Analogue Inputs voltage range
Operating temperature range, T
Junction temperature, T
Storage temperature after soldering
RECOMMENDED OPERATING CONDITIONS
Notes:
1.
2.
3.
4.
5.
w
Analogue and speaker grounds must always be within 0.3V of each other.
All supplies are completely independent from each other (i.e. not internally connected).
AVDD must be less than or equal to SPKVDD.
SPKVDD must be high enough to support the peak output voltage when using DCGAIN and ACGAIN functions, to
avoid output waveform clipping. Peak output voltage is AVDD*(DCGAIN+ACGAIN)/2.
The EN and SYNC pins are compatible with low voltage (eg. 1.8v) logic levels from external devices, and can accept
logic 1 digital inputs as low as 1.6V, even though the WM9001 AVDD supply minimum is 2.7V. This provides
compatibility with a low voltage DVDD on a controlling device such as the WM8991 CODEC.
PARAMETER
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.
J
CONDITION
A
AGND, SPKGND
SPKVDD
SYMBOL
AVDD
MIN
2.7
2.7
AGND -0.3V
AGND -0.3V
-40ºC
-40ºC
-65ºC
-0.3V
-0.3V
MIN
TYP
0
MAX
3.6
5.5
PP, June 2009, Rev 3.2
AVDD +0.3V
AVDD +0.3V
+150ºC
+150ºC
+85ºC
+4.5V
MAX
+7V
WM9001
UNIT
V
V
V
5