Production Data
WM8352
NAME
LOCATION(S)
TYPE
POWER
DOMAIN
DESCRIPTION
HPVDD
K13
Supply
Headphone supply – powers the analogue outputs
OUT1L, OUT1R, OUT2L, OUT2R, OUT3 and OUT4
IN1LN
IN1LP
IN1RN
IN1RP
IN2L
IN2R
IN3L
IN3R
IP
L11
N10
N13
N12
M10
N11
L10
M9
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Analogue Input
Digital Output
open-drain
AVDD
Inverting input for left microphone channel
AVDD
AVDD
AVDD
AVDD
AVDD
AVDD
AVDD
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
B3
IRQ
L4
DBVDD
Interrupt signal from WM8352 to host processor
ISINKA
ISINKB
L1
E11
E12
Analogue Output LDOVDD
Analogue Output LDOVDD
Constant-current LED driver A
Constant-current LED driver B
DC-DC1 inductor connection
A5, B5
C13
Analogue I/O
Analogue I/O
Analogue I/O
Analogue I/O
Analogue I/O
Analogue I/O
Supply
PV1
VP2
PV3
PV4
VP5
PV6
L2
DC-DC2 inductor connection
L3
D13
DC-DC3 inductor connection
L4
C1
DC-DC4 inductor connection
L5
B1
DC-DC5 inductor connection
L6
A8, B8
F12
DC-DC6 inductor connection
LDOVDD
LINEDCDC
LINEINT
LINE
LDO amplifier supply voltage
C5
Supply
Supply connection for DC-DC 1, 4 and 5 control circuits
Supply connection for Internal Reference circuits
LINE supply connection
H2
Supply
F1, F2, F3
L9
Supply
LRCLK
Digital I/O
DBVDD
DBVDD
Word clock (left/right clock) signal for digital audio
interface
MCLK
M6
Digital I/O
Master Clock (may be generated internally or externally)
MICBIAS
M11
Analogue Output AVDD
Low-noise bias voltage for condenser microphones
(connect decoupling capacitor here)
NGATE2
NGATE5
ON
B12
B2
Analogue Output VP2
Analogue Output VP5
DC-DC2 connection to gate of external power FET
DC-DC5 connection to gate of external power FET
Connection for power-on switch
K2
Digital Input
VRTC
OP
A3
Analogue Output
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
OUT1L
OUT2L
OUT1R
OUT2R
OUT3
K11
M13
J11
M12
L12
Analogue Output AVDD
Analogue Output AVDD
Analogue Output AVDD
Analogue Output AVDD
Analogue Output AVDD
Analogue audio output 3 (or pseudo-ground output for
capacitor-less headphone outputs)
OUT4
PG1
PG2
PG3
PG4
PG5
PG6
PGND
PV1
K12
A6, B6
A13
Analogue Output AVDD
Supply
Analogue audio output 4
DC-DC1 power ground
Supply
DC-DC2 power ground
C12
Supply
DC-DC3 power ground
C2
Supply
DC-DC4 power ground
A2
Supply
DC-DC5 power ground
A7, B7
C11
Supply
DC-DC6 power ground
Supply
Ground connection
A4, B4,
D12
Supply
DC-DC1 line or battery power input
DC-DC3 line or battery power input
DC-DC4 line or battery power input
DC-DC6 power input
PV3
Supply
PV4
D1
Supply
PV6
A9, B9
B10
Supply
PVDD
Supply
Supply connection for DC-DC 2, 3 and 6 control circuits
PD, February 2011, Rev 4.4
11
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
