WM8711 Wolfson Microelectronics Ltd., WM8711 Datasheet - Page 18

• Manufacturer Part Number: WM8711
• Description: Internet Audio DAC With Integrated Headphone Driver
• Manufacturer: Wolfson Microelectronics Ltd.

WM8711
Figure 14 I2S Mode
Figure 15 Right Justified Mode
Figure 16 DSP Mode
WOLFSON MICROELECTRONICS LTD
Note: Input word length is defined by the IWL register, LRP = 1
DACLRC
DACLRC
DACLRC
DACDAT
DACDAT
DACDAT
BCLK
BCLK
BCLK
MSB
1 BCLK
1
MSB
1 BCLK
1
2
Right Justified mode is where the LSB is available on the rising edge of BCLK preceding a LRCLK
transition, yet MSB is still transmitted first.
DSP mode is where the left channel MSB is available on either the 1
(selectable by LRP) following an LRCLK transition high. Right channel data immediately follows left
channel data.
2
3
MSB
Input Word Length (IWL)
LEFT CHANNEL
3
1
LEFT CHANNEL
LEFT CHANNEL
2
3
n-2 n-1
n-2 n-1
LSB
n
n-2 n-1
n
LSB
1
2
n
LSB
3
1/fs
RIGHT CHANNEL
1/fs
1/fs
MSB
1 BCLK
1
2
MSB
n-2 n-1
3
1
RIGHT CHANNEL
RIGHT CHANNEL
2
3
n
n-2 n-1
st
or 2
PP Rev 1.2 November 2000
nd
n-2 n-1
n
LSB
rising edge of BCLK
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n
LSB
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