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WM8946ECS/R Datasheet(PDF) 119 Page - Wolfson Microelectronics plc

Part # WM8946ECS/R
Description  Stereo Low-Power CODEC with Video Buffer
PDF  175 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8946ECS/R Datasheet(HTML) 119 Page - Wolfson Microelectronics plc

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Production Data
WM8946
w
PD, July 2012, Rev 4.3
119
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
10:8
FLL_OUTDIV
[2:0]
001
FOUT clock divider
000 = 2
001 = 4
010 = 8
011 = 16
100 = 32
101 = 64
110 = 128
111 = 256
(FOUT = FVCO / FLL_OUTDIV)
7:5
FLL_CTRL_RA
TE[2:0]
000
Frequency of the FLL control block
000 = FVCO / 1 (Recommended value)
001 = FVCO / 2
010 = FVCO / 3
011 = FVCO / 4
100 = FVCO / 5
101 = FVCO / 6
110 = FVCO / 7
111 = FVCO / 8
Recommended that this register is not changed from
default.
4:2
FLL_FRATIO
[2:0]
000
FVCO clock divider
000 = 1
001 = 2
010 = 4
011 = 8
1XX = 16
000 recommended for FREF > 1MHz
100 recommended for FREF < 16kHz
011 recommended for all other cases
1
FLL_FRAC
1
Fractional enable
0 = Integer Mode
1 = Fractional Mode
Integer mode offers reduced power consumption.
Fractional mode offers best FLL performance, provided
also that N.K is a non-integer value.
0
FLL_ENA
0
FLL Enable
0 = Disabled
1 = Enabled
Register 08h FLL Control 1
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R9 (09h)
FLL Control
2
15:0
FLL_K[15:0]
0011_0001
_0010_011
1
Fractional multiply for FREF
(MSB = 0.5)
Register 09h FLL Control 2



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