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WM8569SEDS/RV датащи(PDF) 19 Page - Wolfson Microelectronics plc

номер детали WM8569SEDS/RV
подробное описание детали  24-bit, 192kHz Stereo CODEC with Volume Control
PDF  36 Pages
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производитель  WOLFSON [Wolfson Microelectronics plc]
домашняя страница  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8569SEDS/RV датащи(HTML) 19 Page - Wolfson Microelectronics plc

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Production Data
WM8569
w
PD Rev 4.0 June 2006
19
RIGHT JUSTIFIED MODE
In right justified mode, the LSB of DIN is sampled by the WM8569 on the rising edge of DACBCLK
preceding a DACLRC transition. The LSB of the ADC data is output on DOUT and changes on the
falling edge of ADCBCLK preceding a ADCLRC transition and may be sampled on the rising edge of
ADCBCLK. LRC are high during the left samples and low during the right samples (Figure 14).
LEFT CHANNEL
RIGHT CHANNEL
DACLRC/
ADCLRC
DACBCLK/
ADCBCLK
DIN1/2/3/
DOUT
1/fs
n
3
2
1
n-2 n-1
LSB
MSB
n
3
2
1
n-2 n-1
LSB
MSB
Figure 14 Right Justified Mode Timing Diagram
I
2S MODE
In I
2S mode, the MSB of DIN is sampled by the WM8569 on the second rising edge of DACBCLK
following a DACLRC transition. The MSB of the ADC data is output on DOUT and changes on the
first falling edge of ADCBCLK following an ADCLRC transition and may be sampled on the rising
edge of ADCBCLK. LRC are low during the left samples and high during the right samples.
LEFT CHANNEL
RIGHT CHANNEL
DACLRC/
ADCLRC
DACBCLK/
ADCBCLK
DIN1/2/3/
DOUT
1/fs
n
3
2
1
n-2 n-1
LSB
MSB
n
3
2
1
n-2 n-1
LSB
MSB
1 BCLK
1 BCLK
Figure 15 I
2S Mode Timing Diagram
DSP MODE A
In DSP mode A, the MSB of DAC left channel data is sampled by the WM8569 on the second rising
edge on DACBCLK following a DACLRC rising edge. DAC right channel follows DAC left channel
(Figure 16).
Figure 16 DSP Mode A Timing Diagram – DAC Data Input



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