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參數(shù)資料
| 型號： | WM8768 |
| 廠商： | Wolfson Microelectronics |
| 英文描述： | 24-bit, 192kHz 8-Channel DAC |
| 中文描述： | 24位，192kHz的8通道DAC |
| 文件頁數(shù)： | 19/38頁 |
| 文件大?。?/td> | 393K |
| 代理商： | WM8768 |
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Production Data
WM8768
w
PD Rev 4.1 March 2005
19
DSP MODE B
In DSP mode B, the MSB of DAC channel 1 left data is sampled by the WM8768 on the first BCLK
rising edge following a LRCLK rising edge. DAC channel 1 right and DAC channels 2/3/4 data follow
DAC channel 1 left data (Figure 17).
Figure 17 DSP Mode B Timing Diagram – DAC data input
In both DSP modes A and B, DACL1 is always sent first, followed immediately by DACR1 and the
data words for the other 8 channels. No BCLK edges are allowed between the data words. The word
order is DAC1 left, DAC1 right, DAC2 left, DAC2 right, DAC3 left, DAC3 right, DAC4 left, DAC4 right .
POWERDOWN MODES
The WM8768 has powerdown control bits allowing specific parts of the WM8768 to be powered off
when not being used. The four stereo DACs each have a separate powerdown control bit, DACD[2:0]
& DACD4, allowing individual stereo DACs to be powered off when not in use. Setting DACD will
power down everything except the reference VMID. This may be powered down by setting PDWN.
Setting PDWN will override all other powerdown control bits. It is recommended that the DACs are
powered down before setting PDWN.
LRCIN
BCKIN
DIN1
Input Word Length (IWL)
1/fs
CHANNEL 1
LEFT
n
2
1
n-1
LSB
MSB
n
2
1
n-1
CHANNEL 1
RIGHT
2
1
CHANNEL 2
LEFT
n
n-1
CHANNEL 4
RIGHT
NO VALID DATA
1
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| WM8768GEDS | 制造商:WOLFSON 制造商全稱:WOLFSON 功能描述:24-bit, 192kHz 8-Channel DAC |
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