wm8350 Wolfson Microelectronics plc, wm8350 Datasheet - Page 4

• Manufacturer Part Number: wm8350
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

WM8350
DESCRIPTION....................................................................................................... 1
FEATURES ............................................................................................................ 1
APPLICATIONS..................................................................................................... 1
TYPICAL APPLICATIONS .................................................................................... 2
BLOCK DIAGRAM ................................................................................................ 3
TABLE OF CONTENTS......................................................................................... 4
1
2
3
4
5
6
7
8
9
10
11
w
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
9.1
9.2
9.3
10.1
10.2
10.3
10.4
10.5
11.1
11.2
11.3
11.4
11.5
11.6
11.7
PIN CONFIGURATION.................................................................................. 9
ORDERING INFORMATION ......................................................................... 9
PIN DESCRIPTION ..................................................................................... 10
THERMAL CHARACTERISTICS ................................................................ 13
ABSOLUTE MAXIMUM RATINGS.............................................................. 14
RECOMMENDED OPERATING CONDITIONS .......................................... 15
ELECTRICAL CHARACTERISTICS ........................................................... 16
TYPICAL POWER CONSUMPTION ........................................................... 25
TYPICAL PERFORMANCE DATA.............................................................. 27
9.2.1
9.2.2
9.2.3
SIGNAL TIMING REQUIREMENTS ............................................................ 32
CONTROL INTERFACE.............................................................................. 38
11.7.1
11.7.2
HI-FI AUDIO CODEC........................................................................................... 16
DC-DC STEP UP CONVERTER ELECTRICAL CHARACTERISTICS ............... 18
DC-DC STEP DOWN CONVERTER ELECTRICAL CHARACTERISTICS ......... 19
LDO REGULATOR ELECTRICAL CHARACTERISTICS .................................... 21
BATTERY CHARGER ......................................................................................... 22
CURRENT LIMIT SWITCH .................................................................................. 22
LED DRIVERS ..................................................................................................... 23
GENERAL PURPOSE INPUTS / OUTPUTS (GPIO)........................................... 23
DIGITAL INTERFACES ....................................................................................... 24
AUDIO CODEC.................................................................................................... 27
DC-DC CONVERTERS ....................................................................................... 28
LDO REGULATORS............................................................................................ 31
AUXILIARY ADC .............................................................................................. 24
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
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
POWER EFFICIENCY .........................................................................................................28
OUTPUT VOLTAGE REGULATION ....................................................................................29
DYNAMIC OUTPUT VOLTAGE ...........................................................................................30
CHIP ID ................................................................................................................................ 44
DEVICE INFORMATION......................................................................................................44
TABLE OF CONTENTS
PD, June 2009, Rev 4.1
Production Data
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