wm8350 Wolfson Microelectronics plc, wm8350 Datasheet - Page 12

• Manufacturer Part Number: wm8350
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

WM8350
w
SINKGND
SWVRTC
REFGND
WALLFB
SDATA
VOUT1
VOUT2
VOUT3
VOUT4
NAME
PVDD
RREF
SCLK
VRTC
VMID
VINA
VINB
USB
PV4
PV6
VP2
VP5
X1
X2
LOCATION(S)
G1, G2, G3
A9, B9
G13
H12
G11
G12
B10
E13
F13
F11
B13
M3
D1
N8
N2
N9
A1
H1
E3
K3
J3
L3
J2
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Input
Analogue Input
Analogue I/O
Digital Input
Digital I/O
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
TYPE
DBVDD
DBVDD
VRTC
AVDD
VINA
VINA
VINB
VINB
LINE
VRTC
VRTC
DOMAIN
POWER
DC-DC4 line or battery power input
DC-DC6 power input
Supply connection for DC-DC 2, 3 and 6 control circuits
Reference ground for audio ADC and DAC
Connection for external 100kΩ current reference resistor
Clock signal for 2-wire serial control interface (5V
Tolerant)
Data line for 2-wire serial control interface (5V Tolerant)
Ground connection for ISINKA and ISINKB
Switchable VRTC output. Typically used for battery
temperature monitoring
Connection to USB power rail
Input to voltage regulators LDO1 and LDO2
Input to voltage regulators LDO3 and LDO4
Reference voltage (normally AVDD/2) for audio CODEC
(connect capacitor here)
Output of voltage regulator LDO1
Output of voltage regulator LDO2
Output of voltage regulator LDO3
Output of voltage regulator LDO4
DC-DC2 power input
DC-DC5 power input
Backup power connection (WM8350 can draw power
from this pin or re-charge the backup power source)
Connection to Wall feedback
Connection for 32.768kHz crystal (input to oscillator from
crystal) or 32.768kHz external clock input (when not using
crystal)
Connection for 32.768kHz crystal (output from oscillator
to crystal)
DESCRIPTION
PD, June 2009, Rev 4.1
Production Data
12