wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 2

• Manufacturer Part Number: wm8400
• Description: Wolfson Audioplustm Hi-fi Audio Codec And Power Management Unit For Mobile Multimedia
• Manufacturer: Wolfson Microelectronics plc

WM8400
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AUDIO INTERFACE
BLOCK DIAGRAM
MICROPHONES
PRIMARY I2S
HOST & MMP
INTERFACES
BB (Rx)
FM RADIO
LINE-IN
ADCLRC/GPIO1
PWRGOOD
RIN3/GPI8
RIN4/RXP
LIN3/GPI7
LIN4/RXN
I2S1VDD
LDO1EN
LDO2EN
MSLEEP
ADCDAT
DACLRC
DACDAT
HSLEEP
FLLVDD
MICBIAS
MBVDD
HBVDD
DC1EN
DC2EN
MCLK
NPDN
NIRQ
BCLK
VMID
RIN1
RIN2
LIN2
LIN1
Current Detect
SEQUENCER
MICROPHONE
CONTROL
STARTUP
INTERFACE
INTERFACE
POWER
DIGITAL
STEREO
AUDIO
UVLO
DCDC-1
CORE
BUCK
FLL
MIXERS
INPUT
Codec core
REGULATOR
DCDC-2
BUCK
INTERNAL
I/O
GENERATOR
CLOCK
ADC
ADC
Class D driver
MEMORY PERIPH.
LDO-1
HIGH PASS
FILTERS
VOLUME
DIGITAL
FILTER
VOICE
HI-FI /
ADC
OSC
RECORD
LDO-2
SIDETONE
FILTERS
VOLUME
VOLUME
DIGITAL
DIGITAL
WM8400
DAC
POR
LDO-3
CODEC SUPPLIES
DAC
DAC
SHUTDOWN
THERMAL
+
-
LDO-4
OUTPUT
MIXERS
INTERFACE 2
GPIOs / DAC
GENERATOR
HEADPHONE
LINE DRIVERS
Interface
RESET
CLASS D/AB
DRIVERS
IREF
SPEAKER
I2C
DRIVER
I2CVDD
MODE
NCSADDR
VINT
RSTTRIG
CDELAY
RIREF
I2S2VDD
GPIO2/MCLK2
GPIO3/BCLK2
GPIO4/DACLRC2
SCLK
SDIN
NRST
GND
GPIO5/DACDAT2
GPIO6/ADCLRCB
LOUT
OUT3
OUT4
ROUT
SPKP
SPKN
SPKVDD
SPKGND
HPGND
LOP
LON
ROP
RON
AGND
LOUDSPEAKER #2
EAR SPEAKER
LOUDSPEAKER
BB (Tx)
HEADSET
I2C CONTROL
AUDIO INTERFACE
INTERFACE
SECONDARY I2S
PP, April 2009, Rev 3.0
Pre-Production
2