Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

WM9711 Datasheet(PDF) 36 Page - Wolfson Microelectronics plc

Part # WM9711
Description  LOW POWER AUDIO CODEC FOR PORTABLE APPLICATIONS
PDF  66 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM9711 Datasheet(HTML) 36 Page - Wolfson Microelectronics plc

Back Button WM9711 Datasheet HTML 32Page - Wolfson Microelectronics plc WM9711 Datasheet HTML 33Page - Wolfson Microelectronics plc WM9711 Datasheet HTML 34Page - Wolfson Microelectronics plc WM9711 Datasheet HTML 35Page - Wolfson Microelectronics plc WM9711 Datasheet HTML 36Page - Wolfson Microelectronics plc WM9711 Datasheet HTML 37Page - Wolfson Microelectronics plc WM9711 Datasheet HTML 38Page - Wolfson Microelectronics plc WM9711 Datasheet HTML 39Page - Wolfson Microelectronics plc WM9711 Datasheet HTML 40Page - Wolfson Microelectronics plc Next Button
Zoom Inzoom in Zoom Outzoom out
 36 / 66 page
background image
WM9711L
Production Data
w
PD Rev 4.1 April 2004
36
VARIABLE RATE AUDIO / SAMPLE RATE CONVERSION
By using an AC’97 Rev2.2 compliant audio interface, the WM9711L can record and playback at all
commonly used audio sample rates, and offer full split-rate support (i.e. the DAC, ADC and
AUXDAC sample rates are completely independent of each other – any combination is possible).
The default sample rate is 48kHz. If the VRA bit (register 20h) is set and the appropriate block is
enabled, then other sample rates can be selected by writing to registers 2Ch, 32h and 2Eh. The AC-
Link continues to run at 48k frames per second irrespective of the sample rate selected. However, if
the sample rate is less than 48kHz, then some frames do not carry an audio sample.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
2Ah
Extended
Audio
Stat/Ctrl
0
VRA
0 (OFF)
Variable Rate Audio
0: OFF (DAC and ADC run at 48kHz)
1: ON (sample rates determined by
registers 2Ch, 2Eh and 32h)
2Ch
Audio DAC
Sample Rate
15:0
DACSR
BB80h
(48kHz)
Audio DAC sample rate
1F40h: 8kHz
2B11h: 11.025kHz
2EE0h: 12kHz
3E80h: 16kHz
5622h: 22.05kHz
5DC0h: 24kHz
7D00h: 32kHz
AC44h: 44.1kHz
BB80h: 48kHz
Any other value defaults to the nearest
supported sample rate
32h
Audio ADC
Sample Rate
15:0
ADCSR
BB80h
(48kHz)
Audio ADC sample rate
similar to DACSR
2Eh
AUXDAC
Sample Rate
15:0
AUXDA
CSR
BB80h
(48kHz)
AUXDAC sample rate
similar to DACSR
Table 24 Audio Sample Rate Control



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


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