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WM8772 датащи(PDF) 27 Page - Wolfson Microelectronics plc

номер детали WM8772
подробное описание детали  24-bit, 192kHz 6-Channel Codec with Volume Control
PDF  73 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8772 датащи(HTML) 27 Page - Wolfson Microelectronics plc

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Production Data
WM8772EDS – 28 LEAD SSOP
w
PD Rev 4.2 October 2005
27
ADCLRC
ADCBCLK
DOUT
Input Word Length (IWL)
1/fs
LEFT CHANNEL
n
2
1
n-1
LSB
MSB
n
2
1
n-1
RIGHT CHANNEL
NO VALID DATA
1 BCLK
1 BCLK
Figure 29 DSP Mode Audio Interface - Mode A Master, ADC
DSP MODE B
In DSP mode B, the MSB of DAC channel 1 left data is sampled by the WM8772EDS on the first
BCLK rising edge following a LRC rising edge. DAC channel 1 right and DAC channels 2 and 3 data
follow DAC channel 1 left data (Figure 30).
Figure 30 DSP Mode Audio Interface - Mode B Slave, DAC
DACLRC
DACBCLK
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 3
RIGHT
NO VALID DATA
1
Figure 31 DSP Mode Audio Interface - Mode B Master, DAC
The MSB of the left channel ADC data is output on DOUT and changes on the same falling edge of
BCLK as the low to high LRC transition and may be sampled on the rising edge of BCLK. The right
channel ADC data is contiguous with the left channel data (Figure 32).



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