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WM8945ECS/R датащи(PDF) 60 Page - Wolfson Microelectronics plc

номер детали WM8945ECS/R
подробное описание детали  Mono Low-Power CODEC with Video Buffer and Touch Panel Controller
PDF  169 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8945ECS/R датащи(HTML) 60 Page - Wolfson Microelectronics plc

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WM8945
Production Data
w
PD, May 2011, Rev 4.1
60
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R17 (11h)
Status Flags
0
LDO_UV_STS
0
LDO Undervoltage status
0 = Normal
1 = Undervoltage
R53 (35h)
LDO
15
LDO_ENA
0
LDO Enable
0 = Disabled
1 = Enabled
14
LDO_REF_SEL_F
AST
0
LDO Voltage reference select
0 = VMID (normal)
1 = VMID (fast start)
This field is only effective when
LDO_REF_SEL = 0
13
LDO_REF_SEL
0
LDO Voltage reference select
0 = VMID
1 = Bandgap
12
LDO_OPFLT
0
LDO Output float
0 = Disabled (Output discharged
when disabled)
1 = Enabled (Output floats when
disabled)
5
LDO_BIAS_SRC
0
LDO Bias Source select
0 = Master Bias
1 = Start-Up Bias
4:0
LDO_VSEL
00111
LDO Voltage select
(Sets the LDO output as a ratio of
the selected voltage reference. The
voltage reference is set by
LDO_REF_SEL.)
00111 = Vref x 1.97 (default)
(See Table 37 for range)
R54 (36h)
Bandgap
15
BG_ENA
0
Bandgap Reference Control
0 = Disabled
1 = Enabled
4:0
BG_VSEL[4:0]
01010
Bandgap Voltage select
(Sets the Bandgap voltage)
00000 = 1.200V
… 26.7mV steps
01010 = 1.467V (default)
…
01111 = 1.600V
10000 to 11111 = reserved
(See Table 38 for values)
Table 36 LDO Regulator Control



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