数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

WM8742GEDS/V 数据表(PDF) 25 Page - Cirrus Logic

部件名 WM8742GEDS/V
功能描述  24-bit 192 kHz DAC with Advanced Digital Filtering
PDF  66 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  CIRRUS [Cirrus Logic]
网页  http://www.cirrus.com
标志 CIRRUS - Cirrus Logic

WM8742GEDS/V 数据表(HTML) 25 Page - Cirrus Logic

Back Button WM8742GEDS/V Datasheet HTML 21Page - Cirrus Logic WM8742GEDS/V Datasheet HTML 22Page - Cirrus Logic WM8742GEDS/V Datasheet HTML 23Page - Cirrus Logic WM8742GEDS/V Datasheet HTML 24Page - Cirrus Logic WM8742GEDS/V Datasheet HTML 25Page - Cirrus Logic WM8742GEDS/V Datasheet HTML 26Page - Cirrus Logic WM8742GEDS/V Datasheet HTML 27Page - Cirrus Logic WM8742GEDS/V Datasheet HTML 28Page - Cirrus Logic WM8742GEDS/V Datasheet HTML 29Page - Cirrus Logic Next Button
Zoom Inzoom in Zoom Outzoom out
 25 / 66 page
background image
WM8742
Rev 4.4
25
PCM MODE SAMPLING RATES
The WM8742 supports master clock rates of 128fs to 768fs, where fs is the audio sampling frequency
(LRCLK), typically 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz or 192kHz.
The WM8742 has a master clock detection circuit that automatically determines the relationship
between the master clock frequency and the sampling rate. The master clock should be synchronised
with LRCLK, although the WM8742 is tolerant of phase differences or jitter on this clock.
SAMPLING
RATE
(LRCLK)
MASTER CLOCK (MCLK) FREQUENCY (MHZ)
128fs
192fs
256fs
384fs
512fs
768fs
32kHz
Unavailable
Unavailable
8.192
12.288
16.384
24.576
44.1kHz
Unavailable
Unavailable
11.2896
16.9344
22.5792
33.8688
48kHz
Unavailable
Unavailable
12.288
18.432
24.576
36.864
88.2kHz
11.2896
16.9344
22.5792
33.8688
Unavailable
Unavailable
96kHz
12.288
18.432
24.576
36.864
Unavailable
Unavailable
176.4kHz
22.5792
33.8688
Unavailable
Unavailable
Unavailable
Unavailable
192kHz
24.576
36.864
Unavailable
Unavailable
Unavailable
Unavailable
Table 11 Typical Relationships Between Master Clock Frequency and Sampling Rate in normal
PCM mode
8FS MODE
Operation in 8FS mode requires that audio data for left and right channels is input separately on two
pins. DINR (pin 4) is the input for right channel data and DINL (pin 2) is the input for left channel data.
Hardware control of the device is not available.
The data can be input in two formats (left or right justified), selectable by register FMT[1:0], and two
word lengths (20 or 24 bit), selectable by register IWL[1:0]. In both modes the data is clocked into the
WM8742 MSB first.
For left justified data the word start is identified by the falling edge of LRCLK. The data is clocked in
on the next 20/24 BCLK rising edges. This format is compatible with industry-standard DSPs and
decoders such as the PMD100.
Sample 1
Sample 2
LRCLK
BCLK
DINL
1/8fs
1/8fs
LSB
MSB
n
3
2
1
n-2 n-1
LSB
MSB
n
3
2
1
n-2 n-1
DINR
LSB
MSB
n
3
2
1
n-2 n-1
LSB
MSB
n
3
2
1
n-2 n-1
Figure 19 8FS Mode Left Justified Timing Requirements
For right justified mode, the data is justified to the rising edge of LRCLK and the data is clocked in on
the preceding 20/24 BCLK rising edges before the LRCLK rising edge. This format is compatible with
industry standard DSPs and decoders such as the DF1704 or SM5842.



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


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
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