wm8400 Wolfson Microelectronics plc, wm8400 Datasheet - Page 7

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

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Pre-Production
Note: Digital input pins have Schmitt trigger input buffers and are 3.3V tolerant.
PIN NO
A8, B8
E11
H11
L10
G2
G3
G1
E2
E9
H5
K2
H3
K7
A7
D5
A5
B3
D8
D9
C9
A9
B9
A3
H4
K1
H2
C7
H7
K3
D7
H1
C8
J2
L5
J4
L4
L3
J3
J1
J7
L8
L7
L9
J5
PWRGOOD
NCSADDR
LDO3VDD
LDO4OUT
LDO4VDD
RSTTRIG
MICBIAS
SPKGND
SPKVDD
MSLEEP
MBVDD
PSEQ1
PSEQ2
PSEQ3
PSEQ4
MODE
RIREF
NPDN
ROUT
NAME
LOUT
MCLK
NRST
OUT3
OUT4
SPKN
SPKP
NIRQ
SCLK
VMID
SDIN
LINE
RIN1
RIN2
RIN3
RIN4
RON
VINT
LIN1
LIN2
LIN3
LIN4
ROP
LON
LOP
Supply
Analogue Output
Supply
Analogue Input
Analogue Input
Analogue Input /
Digital Input
Analogue Input
Supply
Analogue Output
Analogue Output
Analogue Output
Supply
Digital Input
Analogue Output
Digital Input
Digital Input
Digital Input
Digital Output
Digital Input
Digital Output
Analogue Output
Analogue Output
Digital Output
Digital Output
Digital Output
Digital Output
Digital Output
Analogue Input
Analogue Input
Analogue Input /
Digital Input
Analogue Input
Analogue Input
Analogue Output
Analogue Output
Analogue Output
Digital Input
Digital Input
Digital Input / Output
Supply
Analogue Output
Analogue Output
Supply
Analogue Output
Analogue Output
TYPE
LDO 3 Supply
Power Output from LDO 4
LDO 4 Supply
Left MIC input / negative diff MIC input
Left line input / positive diff MIC input
Left line input / negative diff input / button detect
Left line input / differential MIC / Mono diff RXN
Main battery input line
Differential Left Line Out (-)ve
Differential Left Line Out (+)ve
Left headphone output
Power supply for MMP interface
Master clock input
Microphone bias
Selects 2-wire or 3/4-wire control
Sleep pin for MMP interface
3-wire chip select or 2-wire address select
Interrupt output (active low)
Power down (active low)
Reset output (active low)
Inverted left headphone output / Mono inverted
output
Inverted right headphone output / Mono non-
inverted output
Power Sequencing Output 1
Power Sequencing Output 2
Power Sequencing Output 3
Power Sequencing Output 4
Power Good Signal
Right MIC input / negative diff MIC input
Right line input / positive diff MIC input
Right line input / negative diff input / button detect
Right line input / differential MIC / Mono diff RXP
Bias Current Set (external resistor)
Differential Right Line Out (-)ve
Differential Right Line Out (+)ve
Right headphone output
Trigger input for reset timer
Control interface clock input (2/3-wire)
Control interface data input / 2-wire acknowledge
Speaker ground (return path for SPKVDD)
Speaker negative output
Speaker positive output
Speaker supply
Decoupling point for internal supply
CODEC midrail reference voltage
DESCRIPTION
PP, April 2009, Rev 3.0
WM8400
LDO4VDD
AVDD
AVDD
AVDD
AVDD
AVDD
AVDD
HPVDD
I2S1VDD
AVDD
I2CVDD
MBVDD
I2CVDD
MBVDD
HBVDD
MBVDD
HPVDD
HPVDD
LINE
LINE
LINE
LINE
HBVDD
AVDD
AVDD
AVDD
AVDD
AVDD
AVDD
HPVDD
HBVDD
I2CVDD
I2CVDD
SPKVDD
SPKVDD
AVDD
DOMAIN
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