WM8352 Datasheet, PDF (308/336 Pages) Wolfson Microelectronics plc – Wolfson AudioPlus™ Stereo CODEC with Power Management

WM8352
Production Data
REGISTER
ADDRESS
R205 (CDh)
LDO2 Low
Power
BIT
LABEL
DEFAULT
13:12 LDO2_HIB_MODE[1:0]
00
9:8 LDO2_HIB_TRIG[1:0]
00
4:0
LDO2_VIMG[4:0]
1_1100
DESCRIPTION
LDO2 Hibernate behaviour:
00 = Select voltage image settings
01 = disable output
10 = reserved
11 = reserved
Reset by state machine. Default held in metal
mask.
LDO2 Hibernate signal select
00 = Hibernate register bit
01 = L_PWR1
10 = L_PWR2
11 = L_PWR3
Reset by state machine. Default held in metal
mask.
LDO2 Regulator output image voltage
REFER TO
Register CDh LDO2 Low Power
1 1111 = 3.3V
… (100mV steps)
1 0000 = 1.8V
0 1111 = 1.65V
… (50mV steps)
0 0000 = 0.9V
REGISTER BIT
ADDRESS
R206 (CEh) 14
LDO3
Control
LABEL
DEFAULT
LDO3_SWI
0
10
LDO3_OPFLT
0
4:0 LDO3_VSEL[4:0] 1_1011
1_1111
1_1100
0_0110
Register CEh LDO3 Control
DESCRIPTION
REFER TO
LDO3 Regulator mode
0 = LDO voltage regulator
1 = Current-limited switch (no voltage regulation,
LDO3_VSEL has no effect)
Reset by state machine. Default held in metal mask.
Enable discharge of LDO3 outputs when LDO3 is
disabled
0 = Enabled - Output to be discharged
1 = Disabled - Output is left floating
Note - if LDO Regulators 1, 2, 3 and 4 are all
disabled, then the outputs will all be discharged,
regardless of the LDOn_OPFLT bit.
LDO3 Regulator output voltage (when LDO3_SWI=0)
1 1111 = 3.3V
… (100mV steps)
1 0000 = 1.8V
0 1111 = 1.65V
… (50mV steps)
0 0000 = 0.9V
Reset by state machine. Default held in metal mask.
w
PD, February 2011, Rev 4.4
308