전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

Preview PDF HTML

WM8980CGEFL/V 데이터시트(PDF) 92 Page - Wolfson Microelectronics plc

부품명 WM8980CGEFL/V
상세설명  Stereo CODEC with Speaker Driver and Video Buffer
PDF  123 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  WOLFSON [Wolfson Microelectronics plc]
홈페이지  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8980CGEFL/V 데이터시트(HTML) 92 Page - Wolfson Microelectronics plc

Back Button WM8980CGEFL/V Datasheet HTML 88Page - Wolfson Microelectronics plc WM8980CGEFL/V Datasheet HTML 89Page - Wolfson Microelectronics plc WM8980CGEFL/V Datasheet HTML 90Page - Wolfson Microelectronics plc WM8980CGEFL/V Datasheet HTML 91Page - Wolfson Microelectronics plc WM8980CGEFL/V Datasheet HTML 92Page - Wolfson Microelectronics plc WM8980CGEFL/V Datasheet HTML 93Page - Wolfson Microelectronics plc WM8980CGEFL/V Datasheet HTML 94Page - Wolfson Microelectronics plc WM8980CGEFL/V Datasheet HTML 95Page - Wolfson Microelectronics plc WM8980CGEFL/V Datasheet HTML 96Page - Wolfson Microelectronics plc Next Button
Zoom Inzoom in Zoom Outzoom out
 92 / 123 page
background image
WM8980
Pre-Production
w
PP, Rev 3.8, May 2012
92
POWER MANAGEMENT
SAVING POWER BY REDUCING OVERSAMPLING RATE
The default mode of operation of the ADC and DAC digital filters is in 64x oversampling mode. Under
the control of ADCOSR and DACOSR the oversampling rate may be doubled. 64x oversampling
results in a slight decrease in noise performance compared to 128x but lowers the power
consumption of the device.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R10
DAC control
3
DACOSR128
0
DAC oversample rate select
0 = 64x (lowest power)
1 = 128x (best SNR)
R14
ADC control
3
ADCOSR128
0
ADC oversample rate select
0 = 64x (lowest power)
1 = 128x (best SNR)
Table 68 ADC and DAC Oversampling Rate Selection
VMID
The analogue circuitry will not work when VMID is disabled (VMIDSEL[1:0] = 00b). The impedance of
the VMID resistor string, together with the decoupling capacitor on the VMID pin will determine the
startup time of the VMID circuit.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R1
Power
management 1
1:0
VMIDSEL
00
Reference string impedance to VMID pin
(determines startup time):
00=off (open circuit)
01=75kΩ
10=300kΩ
11=5kΩ (for fastest startup)
Table 69 VMID Impedance Control
BIASEN
The analogue amplifiers will not operate unless BIASEN is enabled.
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
R1
Power
management 1
3
BIASEN
0
Analogue amplifier bias control
0=disabled
1=enabled
Table 70 Analogue Bias 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 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


데이터시트 다운로드

Go To PDF Page


링크 URL



ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크 투 데이터시트    |   링크교환   |   제조사별 검색
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