WM8351GEB/V Wolfson Microelectronics, WM8351GEB/V Datasheet - Page 6

• Manufacturer Part Number: WM8351GEB/V
• Description: Audio CODECs Audio CODEC plus pwr management
• Manufacturer: Wolfson Microelectronics

Specifications of WM8351GEB/V

• Number Of Adc Inputs: 2
• Number Of Dac Outputs: 2
• Conversion Rate: 48 KSPS
• Interface Type: Serial (2-Wire, 3-Wire, 4-Wire)
• Resolution: 12 bit
• Operating Supply Voltage: 3.7 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: BGA
• Minimum Operating Temperature: - 25 C
• Number Of Channels: 2 ADC/2 DAC
• Supply Current: 260 uA
• Thd Plus Noise: - 83 dB
• Audio Codec Type: Stereo
• No. Of Adcs: 2
• No. Of Dacs: 2
• No. Of Input Channels: 8
• No. Of Output Channels: 6
• Adc / Dac Resolution: 24bit
• Adcs / Dacs Signal To Noise Ratio: 95dB
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

WM8351
14
15
16
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14.1
14.2
14.3
14.4
14.5
14.6
14.7
14.8
14.9
15.1
15.2
16.1
16.2
13.12.2
13.12.3
13.12.4
13.12.5
13.12.6
13.12.7
POWER MANAGEMENT SUBSYSTEM .................................................... 105
14.2.1
14.3.1
14.3.2
14.3.3
14.3.4
14.3.5
14.3.6
14.4.1
14.4.2
14.4.3
14.5.1
14.5.2
14.5.3
14.6.1
14.6.2
14.6.3
14.6.4
14.6.5
14.7.1
14.7.2
14.7.3
14.7.4
14.8.1
14.8.2
14.8.3
CURRENT LIMIT SWITCH ........................................................................ 143
15.2.1
15.2.2
15.2.3
CURRENT SINKS (LED DRIVERS) .......................................................... 146
16.2.1
16.2.2
16.2.3
16.2.4
16.2.5
GENERAL DESCRIPTION ........................................................................... 105
POWER MANAGEMENT OPERATING STATES ......................................... 105
POWER SEQUENCING AND CONTROL .................................................... 107
DEVELOPMENT MODE ............................................................................... 111
CUSTOM MODES ........................................................................................ 116
CONFIGURING THE DC-DC CONVERTERS .............................................. 126
CONFIGURING THE LDO REGULATORS .................................................. 134
DC-DC CONVERTER OPERATION ............................................................. 139
LDO REGULATOR OPERATION ................................................................. 142
GENERAL DESCRIPTION ........................................................................... 143
CONFIGURING THE CURRENT LIMIT SWITCH ......................................... 143
GENERAL DESCRIPTION ........................................................................... 146
CONSTANT-CURRENT SINK ...................................................................... 146
MICROPHONE DETECTION ............................................................................................... 99
MID-RAIL REFERENCE (VMID) ........................................................................................ 100
ANTI-POP CONTROL ........................................................................................................ 101
UNUSED ANALOGUE INPUTS/OUTPUTS ....................................................................... 102
ZERO CROSS TIMEOUT .................................................................................................. 104
INTERRUPTS AND FAULT PROTECTION ....................................................................... 104
HIBERNATE STATE SELECTION ..................................................................................... 106
STARTUP .......................................................................................................................... 107
POWER-UP SEQUENCING .............................................................................................. 108
SHUTDOWN ...................................................................................................................... 108
POWER CYCLING ............................................................................................................ 109
REGISTER RESET ............................................................................................................ 109
RESET SIGNALS ............................................................................................................... 110
CONTROL INTERFACE REDIRECTION ........................................................................... 111
STARTING UP IN DEVELOPMENT MODE ....................................................................... 112
CONFIGURING THE WM8351 IN DEVELOPMENT MODE .............................................. 113
CONFIGURATION MODE 01 ............................................................................................ 117
CONFIGURATION MODE 10 ............................................................................................ 120
CONFIGURATION MODE 11 ............................................................................................ 123
DC-DC CONVERTER ENABLE ......................................................................................... 126
CLOCKING ........................................................................................................................ 126
DC-DC BUCK (STEP-DOWN) CONVERTER CONTROL.................................................. 127
DC-DC BOOST (STEP-UP) CONVERTER CONTROL...................................................... 130
INTERRUPTS AND FAULT PROTECTION ....................................................................... 132
LDO REGULATOR ENABLE ............................................................................................. 134
LDO REGULATOR CONTROL .......................................................................................... 135
INTERRUPTS AND FAULT PROTECTION ....................................................................... 137
ADDITIONAL CONTROL FOR LDO1 ................................................................................ 138
OVERVIEW........................................................................................................................ 139
DC-DC STEP DOWN CONVERTERS ............................................................................... 140
DC-DC STEP UP CONVERTER ........................................................................................ 141
CURRENT LIMIT SWITCH ENABLE ................................................................................. 143
CURRENT LIMIT SWITCH BULK DETECTION CONTROL .............................................. 144
INTERRUPTS AND FAULT PROTECTION ....................................................................... 144
ENABLING THE SINK CURRENT ..................................................................................... 146
PROGRAMMING THE SINK CURRENT ............................................................................ 146
FLASH MODE .................................................................................................................... 147
ON/OFF RAMP TIMING ..................................................................................................... 149
INTERRUPTS AND FAULT PROTECTION ....................................................................... 149
PD, March 2010, Rev 4.2
Production Data
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