WM8352
Production Data
TABLE OF CONTENTS
DESCRIPTION .......................................................................................................1
FEATURES.............................................................................................................1
APPLICATIONS .....................................................................................................1
TYPICAL APPLICATIONS.....................................................................................2
BLOCK DIAGRAM .................................................................................................3
TABLE OF CONTENTS .........................................................................................4
1
2
3
4
5
6
7
PIN CONFIGURATION ..................................................................................9
ORDERING INFORMATION..........................................................................9
PIN DESCRIPTION......................................................................................10
THERMAL CHARACTERISTICS.................................................................13
ABSOLUTE MAXIMUM RATINGS ..............................................................14
RECOMMENDED OPERATING CONDITIONS...........................................15
ELECTRICAL CHARACTERISTICS............................................................16
7.1 HI-FI AUDIO CODEC......................................................................................... 16
7.2 DC-DC STEP UP CONVERTER ELECTRICAL CHARACTERISTICS............... 18
7.3 DC-DC STEP DOWN CONVERTER ELECTRICAL CHARACTERISTICS ........ 19
7.4 LDO REGULATOR ELECTRICAL CHARACTERISTICS................................... 21
7.5 BATTERY CHARGER........................................................................................ 22
7.6 CURRENT LIMIT SWITCH................................................................................ 22
7.7 LED DRIVERS................................................................................................... 23
7.8 GENERAL PURPOSE INPUTS / OUTPUTS (GPIO) ......................................... 23
7.9 DIGITAL INTERFACES ..................................................................................... 24
7.10
AUXILIARY ADC ............................................................................................ 24
8
9
TYPICAL POWER CONSUMPTION............................................................25
TYPICAL PERFORMANCE DATA...............................................................27
9.1 AUDIO CODEC.................................................................................................. 27
9.2 DC-DC CONVERTERS...................................................................................... 28
9.2.1 POWER EFFICIENCY.............................................................................................................28
9.2.2 OUTPUT VOLTAGE REGULATION ........................................................................................29
9.2.3 DYNAMIC OUTPUT VOLTAGE ............................................................................................... 30
9.3 LDO REGULATORS.......................................................................................... 31
10 SIGNAL TIMING REQUIREMENTS.............................................................32
10.1
10.2
10.3
10.4
10.5
SYSTEM CLOCK TIMING .............................................................................. 32
AUDIO INTERFACE TIMING - MASTER MODE ............................................ 32
AUDIO INTERFACE TIMING - SLAVE MODE................................................ 33
AUDIO INTERFACE TIMING - TDM MODE ................................................... 34
CONTROL INTERFACE TIMING.................................................................... 35
11 CONTROL INTERFACE ..............................................................................38
11.1
11.2
11.3
11.4
11.5
11.6
11.7
GENERAL DESCRIPTION ............................................................................. 38
CONTROL INTERFACE MODES................................................................... 38
2-WIRE SERIAL CONTROL MODE ............................................................... 39
3-WIRE SERIAL CONTROL MODE ............................................................... 42
4-WIRE SERIAL CONTROL MODE ............................................................... 43
REGISTER LOCKING .................................................................................... 44
SPECIAL REGISTERS................................................................................... 44
11.7.1
CHIP ID................................................................................................................................ 44
11.7.2
DEVICE INFORMATION...................................................................................................... 44
12 CLOCKING, TIMING AND SAMPLE RATES ..............................................45
PD, February 2011, Rev 4.4
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
