wm8352 Wolfson Microelectronics plc, wm8352 Datasheet - Page 10

• Manufacturer Part Number: wm8352
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

WM8352
3
Notes:
Pins are listed in alphabetical order by name.
w
ADCDATA
DACDATA
GPIO10
GPIO11
GPIO12
HPCOM
DCVDD
DBVDD
HPGND
CONF0
CONF1
GPIO0
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
GPIO7
GPIO8
GPIO9
HIVDD
DGND
PIN DESCRIPTION
NAME
AVDD
CREF
AUX1
AUX2
AUX3
AUX4
BATT
BCLK
GND
FB1
FB2
FB3
FB4
FB5
FB6
LOCATION(S)
H6, H7, H8,
G6,G7, G8,
E1, E2, D2
F6, F7, F8,
C7, C8
H11
H13
A12
D11
A10
B11
C10
A11
J13
J12
L13
M7
M8
H3
N7
N5
N6
M5
C6
C3
C4
M2
M1
M4
D3
C9
K1
N1
N3
N4
L8
J1
L1
L5
L6
L7
Analogue Input
Analogue Output
Analogue Output
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Digital Output
Analogue I/O
Digital Input
Digital Input
Digital Input
Digital I/O
Digital I/O
Digital I/O
Digital I/O
Digital I/O
Digital I/O
Digital I/O
Digital I/O
Digital I/O
Digital I/O
Digital I/O
Digital I/O
Digital I/O
Digital I/O
Supply
Supply
Supply
Supply
Supply
Supply
TYPE
DBVDD
LINE
LINE
LINE
LINE
DBVDD
VRTC
VRTC
VRTC
DBVDD
PV1
VP2
PV3
PV4
VP5
PV6
VRTC
VRTC
VRTC
VRTC
DBVDD
DBVDD
DBVDD
DBVDD
DBVDD
DBVDD
LINE
LINE
LINE
HPVDD
HPVDD
DOMAIN
POWER
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
DC-DC5 feedback pin
DC-DC6 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
DESCRIPTION
PD, June 2009, Rev 4.1
Production Data
10