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WM8994ECS/R датащи(PDF) 170 Page - Cirrus Logic

номер детали WM8994ECS/R
подробное описание детали  Multi-channel Audio Hub CODEC for Smartphones
PDF  363 Pages
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производитель  CIRRUS [Cirrus Logic]
домашняя страница  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

WM8994ECS/R датащи(HTML) 170 Page - Cirrus Logic

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WM8994
170
Rev 4.6
n
n-1
n-2
3
2
1
n
n-1
n-2
3
2
1
LEFT CHANNEL
RIGHT CHANNEL
MSB
LSB
Input Word Length (WL)
1/fs
LRCLK
BCLK
DACDAT/
ADCDAT
Figure 54 DSP Mode Audio Interface (mode B, AIF_LRCLK_INV=1, Master)
n
n-1
n-2
3
2
1
n
n-1
n-2
3
2
1
LEFT CHANNEL
RIGHT CHANNEL
MSB
LSB
Input Word Length (WL)
1/fs
LRCLK
BCLK
DACDAT/
ADCDAT
1 BCLK
Falling edge can occur anywhere in this area
1 BCLK
Figure 55 DSP Mode Audio Interface (mode A, AIF_LRCLK_INV=0, Slave)
n
n-1
n-2
3
2
1
n
n-1
n-2
3
2
1
LEFT CHANNEL
RIGHT CHANNEL
MSB
LSB
Input Word Length (WL)
1/fs
LRCLK
BCLK
DACDAT/
ADCDAT
1 BCLK
1 BCLK
Falling edge can occur anywhere in this area
Figure 56 DSP Mode Audio Interface (mode B, AIF_LRCLK_INV=1, Slave)
Mono mode operation is available in DSP interface mode. When Mono mode is enabled, the audio
data is transmitted or received starting on either the 1st (mode B) or 2nd (mode A) rising edge of BCLK
following a rising edge of LRCLK.
PCM operation is supported in DSP interface mode. WM8994 ADC data that is output on the Left
Channel will be read as mono PCM data by the receiving equipment. Mono PCM data received by the
WM8994 will be treated as Left Channel data. This data may be routed to the Left/Right DACs using
the control fields described in the
“Digital Mixing” and “Digital Audio Interface Control” sections.



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