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WM8850 Datasheet(PDF) 11 Page - Wolfson Microelectronics plc |
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WM8850 Datasheet(HTML) 11 Page - Wolfson Microelectronics plc |
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11 / 223 page  Pre-Production WM8850 w PP, April 2011, Rev 3.2 11 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 MIN MAX Analogue supply voltage (AVDD) -0.3V +7V Charge pump supply voltage (CPVDD) -0.3V +7V Digital core supply voltage (DCVDD) -0.3V +2.5V Digtial buffer supply voltage (DBVDD) -0.3V +7V Voltage range digital inputs DGND -0.3V DBVDD +0.3V Voltage range analogue inputs AGND -0.3V AVDD +0.3V Operating temperature range, TA -40ºC +85ºC Junction temperature, TJMAX -40ºC +150ºC Storage temperature after soldering -65ºC +150ºC RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL MIN TYP MAX UNIT CODEC Power Supplies Digital core supply range DCVDD 1.62 1.8 1.98 V Digital buffer supply range DBVDD 2.97 3.3 3.63 V Analogue supply range AVDD 4.5 5.0 5.25 V Charge pump supply range CPVDD 4.5 5.0 5.25 V Ground DGND, AGND, HPGND 0 V Notes: 1. Analogue and digital grounds must always be within 0.3V of each other. 2. All digital and analogue supplies are completely independent from each other (i.e. not internally connected). |
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