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WM8971LEFL/R Datasheet(PDF) 38 Page - Wolfson Microelectronics plc

Part # WM8971LEFL/R
Description  STEREO CODEC FOR PORTABLE AUDIO APPLLICATIONS
PDF  56 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8971LEFL/R Datasheet(HTML) 38 Page - Wolfson Microelectronics plc

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WM8971L
Advanced Information
w
AI Rev 3.0 March 2004
38
In DSP mode, the left channel MSB is available on either the 1
st (mode B) or 2nd (mode A) rising
edge of BCLK (selectable by LRP) following a rising edge of LRCLK. Right channel data immediately
follows left channel data. Depending on word length, BCLK frequency and sample rate, there may be
unused BCLK cycles between the LSB of the right channel data and the next sample.
LEFT CHANNEL
RIGHT CHANNEL
DACLRC/
ADCLRC
BCLK
DACDAT/
ADCDAT
n
3
2
1
n-2 n-1
LSB
MSB
n
3
2
1
n-2 n-1
1 BCLK
Input Word Length (WL)
1/fs
Figure 19 DSP Mode Audio Interface (mode A, LRP=0)
LEFT CHANNEL
RIGHT CHANNEL
DACLRC/
ADCLRC
BCLK
DACDAT/
ADCDAT
n
3
2
1
n-2 n-1
LSB
MSB
n
3
2
1
n-2 n-1
1 BCLK
Input Word Length (WL)
1/fs
Figure 20 DSP Mode Audio Interface (mode B, LRP=1)



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