Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

Preview PDF HTML

WM8940CGEFL/V Datasheet(PDF) 28 Page - Cirrus Logic

Part # WM8940CGEFL/V
Description  Mono CODEC with Speaker Driver
PDF  88 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8940CGEFL/V Datasheet(HTML) 28 Page - Cirrus Logic

Back Button WM8940CGEFL/V Datasheet HTML 24Page - Cirrus Logic WM8940CGEFL/V Datasheet HTML 25Page - Cirrus Logic WM8940CGEFL/V Datasheet HTML 26Page - Cirrus Logic WM8940CGEFL/V Datasheet HTML 27Page - Cirrus Logic WM8940CGEFL/V Datasheet HTML 28Page - Cirrus Logic WM8940CGEFL/V Datasheet HTML 29Page - Cirrus Logic WM8940CGEFL/V Datasheet HTML 30Page - Cirrus Logic WM8940CGEFL/V Datasheet HTML 31Page - Cirrus Logic WM8940CGEFL/V Datasheet HTML 32Page - Cirrus Logic Next Button
Zoom Inzoom in Zoom Outzoom out
 28 / 88 page
background image
WM8940
28
Rev 4.4
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R20
Notch Filter 2A
15
NF2_UP
0
Notch filter 2 update. The notch filter 2
values used internally only update when
one of the NFU bits is set high.
14
NF2_EN
0
Notch filter 2 enable.
0=Disabled
1=Enabled
13:0
NF2_A0
0
Notch filter 2 a0 coefficient
R21
Notch Filter 2B
15
NF2_UP
0
Notch filter 2 update. The notch filter 2
values used internally only update when
one of the NFU bits is set high.
13:0
NF2_A1
0
Notch filter 2 a1 coefficient
Table 17 Notch Filter 2 Function
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R22
Notch Filter 3A
15
NF3_UP
0
Notch filter 3 update. The notch filter 3
values used internally only update when
one of the NFU bits is set high.
14
NF3_EN
0
Notch filter 3 enable.
0=Disabled
1=Enabled
13:0
NF3_A0
0
Notch filter 3 a0 coefficient
R23
Notch Filter 3B
15
NF3_UP
0
Notch filter 3 update. The notch filter 3
values used internally only update when
one of the NFU bits is set high.
14
NF3_LP
0
Notch filter 3 mode select
0 = Notch Filter mode
1 = Low Pass Filter mode
13:0
NF3_A1
0
Notch filter 3 a1 coefficient
Table 18 Notch Filter 3 Function
The notch filter coefficients must be entered using a sign / magnitude notation.
The MSB of the 14-bit register word (NFx_Ax[13]) is reserved for the sign part, leaving the 13
remaining bits for the magnitude part.
The notch filter coefficients are calculated as follows:
)
2
/
tan(
1
)
2
/
tan(
1
0
b
b
w
w
a
+
−
=
)
cos(
)
1
(
0
0
1
w
a
a
+
−
=
Where:
s
c
f
f
w
/
2
0
=
s
b
b
f
f
w
/
2
=
fc = centre frequency in Hz, fb = -3dB bandwidth in Hz, fs = sample frequency in Hz



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com