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WM8944BECS/R 数据表(PDF) 128 Page - Cirrus Logic

部件名 WM8944BECS/R
功能描述  Mono Low-Power CODEC with Video Buffer
PDF  165 Pages
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制造商  CIRRUS [Cirrus Logic]
网页  http://www.cirrus.com
标志 CIRRUS - Cirrus Logic

WM8944BECS/R 数据表(HTML) 128 Page - Cirrus Logic

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WM8944B
128
Rev 4.3
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
1 = -6dB attenuation
Register 33h Line mixer control 2
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R53 (35h)
LDO
15
LDO_ENA
0
LDO Enable
0 = Disabled
1 = Enabled
14
LDO_REF_
SEL_FAST
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
Bias Source select
0 = Master Bias
1 = Start-Up Bias (Fast)
4:0
LDO_VSEL [4:0]
0_0111
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)
Table 38
Register 35h LDO
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R54 (36h)
Bandgap
15
BG_ENA
0
Bandgap Reference Control
0 = Disabled
1 = Enabled
4:0
BG_VSEL [4:0]
0_1010
Bandgap Voltage select
(Sets the Bnadgap voltage)
00000 = 1.200V
… 26.7mV steps
01010 = 1.467V (default)
…
01111 = 1.600V
10000 to 11111 = reserved
Table 38
Register 36h Bandgap
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R64 (40h) SE
Config
Selection
3:0
SE_CONFIG
[3:0]
0000
DSP Configuration Mode select
0000 = Record mode
0001 = Playback mode
0010 = DSP General mode 1
0011 = DSP General mode 2



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