WM8351 Datasheet, PDF (10/330 Pages) Wolfson Microelectronics plc – Wolfson AudioPlus™ Stereo CODEC with Power Management

WM8351
3 PIN DESCRIPTION
Notes:
Pins are listed in alphabetical order by name.
NAME
LOCATION(S)
TYPE
ADCDATA
M7
Digital Output
POWER
DOMAIN
DBVDD
AUX1
H11
Analogue Input LINE
AUX2
AUX3
AUX4
AVDD
BATT
J13
H13
C9
M8
E1, E2, D2
Analogue Input
Analogue Input
Analogue Input
Supply
Analogue I/O
LINE
LINE
LINE
BCLK
CREF
L8
Digital I/O
DBVDD
H3
Analogue Output VRTC
CONF0
J1
CONF1
K1
DACDATA
N7
Digital Input
Digital Input
Digital Input
VRTC
VRTC
DBVDD
DCVDD
N5
DBVDD
N6
Supply
Supply
DGND
M5
Supply
FB1
FB2
FB3
FB4
GND
GPIO0
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
GPIO10
GPIO11
GPIO12
HIVDD
C6
A12
D11
C3
F6, F7, F8, G6,
G7, G8, H6, H7
H8, C7, C8
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Supply
L1
Digital I/O
M2
Digital I/O
M1
Digital I/O
N1
Digital I/O
N3
Digital I/O
L5
Digital I/O
M4
Digital I/O
N4
Digital I/O
L6
Digital I/O
L7
Digital I/O
B11
Digital I/O
C10
Digital I/O
A11
Digital I/O
D3
Analogue Output
PV1
VP2
PV3
PV4
VRTC
VRTC
VRTC
VRTC
DBVDD
DBVDD
DBVDD
DBVDD
DBVDD
DBVDD
LINE
LINE
LINE
HPCOM
HPGND
HPVDD
J12
Analogue Input HPVDD
L13
Supply
HPVDD
K13
Supply
IN1LN
L11
w
Analogue Input AVDD
Production Data
DESCRIPTION
Digital audio output (typically from on-chip audio ADC to
external IC)
Auxiliary ADC input AUX1
(Special function for connection to temperature-sensing
NTC resistor in battery pack)
Auxiliary ADC input AUX2
Auxiliary ADC input AUX3
Auxiliary ADC input AUX4
Analogue supply for audio CODEC
Main battery power connection (can draw power or
charge battery)
Bit clock signal for digital audio interface
Decoupling for VREF reference voltage (connect
capacitor here)
Start-up configuration pin 0
Start-up configuration pin 1
Digital audio input (typically from external IC to on-chip
audio DAC)
Digital core supply; powers digital core of audio CODEC
Digital I/O buffer supply; powers digital audio interface,
control interface and pins GPIO4 to GPIO9
Digital ground; return path for DCVDD and DBVDD
supplies
DC-DC1 feedback pin
DC-DC2 feedback pin
DC-DC3 feedback pin
DC-DC4 feedback pin
Quiet ground connection for audio CODEC.
Note that DC-DC Converters use a separate ground
connection.
General Purpose Input/Output pin 0
General Purpose Input/Output pin 1
General Purpose Input/Output pin 2
General Purpose Input/Output pin 3
General Purpose Input/Output pin 4
General Purpose Input/Output pin 5
General Purpose Input/Output pin 6
General Purpose Input/Output pin 7
General Purpose Input/Output pin 8
General Purpose Input/Output pin 9
General Purpose Input/Output pin 10
General Purpose Input/Output pin 11
General Purpose Input/ Output pin 12
Analogue output from power management unit which
determines highest supply from Line, Battery or USB.
Headphone output amplifier noise compensation input
Headphone ground; return path for HPVDD supply
Headphone supply – powers the analogue outputs
OUT1L, OUT1R, OUT2L, OUT2R, OUT3 and OUT4
Inverting input for left microphone channel
PD, April 2012, Rev 4.5
10