Datenblatt-Suchmaschine für elektronische Bauteile
  German  ▼
ALLDATASHEETDE.COM

X  

Preview PDF HTML

WM8281ECS/R Datenblatt(PDF) 289 Page - Cirrus Logic

Teilenummer WM8281ECS/R
Bauteilbeschribung  Low Power Audio System with Ambient Noise Cancellation and Echo Cancellation
PDF  392 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Hersteller  CIRRUS [Cirrus Logic]
Direct Link  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8281ECS/R Datenblatt(HTML) 289 Page - Cirrus Logic

Back Button WM8281ECS/R Datasheet HTML 285Page - Cirrus Logic WM8281ECS/R Datasheet HTML 286Page - Cirrus Logic WM8281ECS/R Datasheet HTML 287Page - Cirrus Logic WM8281ECS/R Datasheet HTML 288Page - Cirrus Logic WM8281ECS/R Datasheet HTML 289Page - Cirrus Logic WM8281ECS/R Datasheet HTML 290Page - Cirrus Logic WM8281ECS/R Datasheet HTML 291Page - Cirrus Logic WM8281ECS/R Datasheet HTML 292Page - Cirrus Logic WM8281ECS/R Datasheet HTML 293Page - Cirrus Logic Next Button
Zoom Inzoom in Zoom Outzoom out
 289 / 392 page
background image
WM8281
Rev 4.0
289
EXAMPLE FLL SETTINGS
Table 110 provides example FLL settings for generating 147.456MHz SYSCLK from a variety of low
and high frequency reference inputs.
FSOURCE
FOUT (MHz)
FREF
Divider
N.K
FRATIO
FVCO
(
MHz)
OUTDIV
FLLn_N
FLLn_
THETA
FLLn_
LAMBDA
32.000 kHz
147.456
1
204.8
15
294.912
2
0CCh
0004h
0005h
32.768 kHz
147.456
1
187.5
16
294.912
2
0BBh
0001h
0002h
48 kHz
147.456
1
136.5333
15
294.912
2
088h
0008h
000Fh
128 kHz
147.456
1
109.4173
7
294.912
2
06Dh
0005h
0007h
512 kHz
147.456
1
38.4
5
294.912
2
026h
0002h
0005h
1.536 MHz
147.456
1
21.3333
3
294.912
2
015h
0001h
0003h
3.072 MHz
147.456
1
10.6667
3
294.912
2
00Ah
0002h
0003h
11.2896 MHz
147.456
1
8.7075
1
294.912
2
008h
0068h
0093h
12.000 MHz
147.456
1
8.192
1
294.912
2
008h
0018h
007Dh
12.288 MHz
147.456
2
5.3333
3
294.912
2
005h
0001h
0003h
13.000 MHz
147.456
1
7.5618
1
294.912
2
007h
0391h
0659h
19.200 MHz
147.456
2
10.24
1
294.912
2
00Ah
0006h
0019h
24 MHz
147.456
2
8.192
1
294.912
2
008h
0018h
007Dh
26 MHz
147.456
2
7.5618
1
294.912
2
007h
0391h
0659h
27 MHz
147.456
2
7.2818
1
294.912
2
007h
013Dh
0465h
FOUT = (FSOURCE / FREF Divider) * 3 * N.K * FRATIO / OUTDIV
The values of N and K are contained in the FLLn_N, FLLn_THETA and FLLn_LAMBDA registers as shown above.
See Table 106 and Table 107 for the coding of the FLLn_REFCLK_DIV, FLLn_FRATIO and FLLn_OUTDIV registers.
Table 110 Example FLL Settings
Note that the odd-numbered FRATIO division is not possible on the FLL Synchroniser circuit. Table
111 provides alternative settings for the FLL Synchroniser for the affected examples.
In all cases, note that the register coding of FLLn_FRATIO is different to FLLn_SYNC_FRATIO.
FSOURCE
FOUT (MHz)
FREF
Divider
N.K
FRATIO
FVCO
(
MHz)
OUTDIV
FLLn_N
FLLn_
THETA
FLLn_
LAMBDA
32.000 kHz
147.456
1
192
16
294.912
2
0C0h
48 kHz
147.456
1
128
16
294.912
2
080h
128 kHz
147.456
1
96
8
294.912
2
060h
512 kHz
147.456
1
96
2
294.912
2
060h
1.536 MHz
147.456
1
64
1
294.912
2
040h
3.072 MHz
147.456
1
32
1
294.912
2
020h
12.288 MHz
147.456
1
8
1
294.912
2
008h
FOUT = (FSOURCE / FREF Divider) * 3 * N.K * FRATIO / OUTDIV
The values of N and K are contained in the FLLn_N, FLLn_THETA and FLLn_LAMBDA registers as shown above.
See Table 106 and Table 107 for the coding of the FLLn_REFCLK_DIV, FLLn_FRATIO and FLLn_OUTDIV registers.
Table 111 Example FLL Synchroniser Settings



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 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datenblatt Download

Go To PDF Page


Link URL



War ALLDATASHEET hilfreich?  [ DONATE ] 

Über Alldatasheet   |   Werbung   |   Kontakt   |   Privatsphäre und Datenschutz   |   Link zum Datenblatt    |   Linktausch   |   Hersteller
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