wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 11

• Manufacturer Part Number: wm8351
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

Production Data
w
LINEDCDC
SINKGND
SWVRTC
LDOVDD
REFGND
MICBIAS
NGATE2
LINEINT
OUT1R
OUT2R
ISINKA
LRCLK
OUT1L
OUT2L
SDATA
IN1RN
IN1RP
PGND
IN1LP
MCLK
PVDD
RREF
NAME
OUT3
OUT4
SCLK
/RST
IN2L
IN2R
IN3L
IN3R
LINE
PG1
PG2
PG3
PG4
PV1
PV3
PV4
IRQ
ON
OP
L1
L2
L3
L4
IP
LOCATION(S)
F1, F2, F3
A4, B4,
A5, B5
A6, B6
M10
N11
M11
M13
M12
N10
N13
N12
E11
C13
D13
F12
B12
K11
K12
A13
C12
C11
D12
B10
E13
L10
J11
L12
M9
M6
M3
B3
C1
C5
H2
K2
A3
C2
D1
N8
N2
L9
L4
L2
J3
L3
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Output
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Digital Output
Digital Output
Analogue I/O
Analogue I/O
Analogue I/O
Analogue I/O
Digital Input
Digital Input
open-drain
open-drain
Digital I/O
Digital I/O
Digital I/O
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
Supply
TYPE
AVDD
AVDD
AVDD
AVDD
AVDD
AVDD
AVDD
LDOVDD
PV1
VP2
PV3
PV4
DBVDD
DBVDD
AVDD
VP2
DBVDD
VRTC
DBVDD
AVDD
AVDD
AVDD
AVDD
AVDD
AVDD
DBVDD
DBVDD
VRTC
DOMAIN
POWER
Non-inverting input 1 for left microphone channel
Inverting input for right microphone channel
Non-inverting input 1 for right microphone channel
Non-inverting input 2 for left microphone channel
Non-inverting input 2 for right microphone channel
Auxiliary input for analogue audio signals (left channel)
Auxiliary input for analogue audio signals (right channel)
Power input to current limit switch
Constant-current LED driver A
DC-DC1 inductor connection
DC-DC2 inductor connection
DC-DC3 inductor connection
DC-DC4 inductor connection
LDO amplifier supply voltage
Supply connection for DC-DC 1 and 4 control circuits
Supply connection for Internal Reference circuits
LINE supply connection
Word clock (left/right clock) signal for digital audio
interface
Master Clock (may be generated internally or externally)
Low-noise bias voltage for condenser microphones
(connect decoupling capacitor here)
DC-DC2 connection to gate of external power FET
Interrupt signal from WM8351 to host processor
Connection for power-on switch
System Reset Signal (active low)
Power output from current limit switch
Left channel analogue audio output 1
Left channel analogue audio output 2
Right channel analogue audio output 1
Right channel analogue audio output 2
Analogue audio output 3 (or pseudo-ground output for
capacitor-less headphone outputs)
Analogue audio output 4
DC-DC1 power ground
DC-DC2 power ground
DC-DC3 power ground
DC-DC4 power ground
Ground connection
DC-DC1 line or battery power input
DC-DC3 line or battery power input
DC-DC4 line or battery power input
Supply connection for DC-DC 2 and 3 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
Switchable VRTC output. Typically used for battery
temperature monitoring
DESCRIPTION
PD, June 2009, Rev 4.1
WM8351
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