AK4101 Ver la hoja de datos (PDF) - Asahi Kasei Microdevices
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AK4101 Datasheet PDF : 28 Pages
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ASAHI KASEI
[AK4101]
C, U, V Serial Ports
Normal mode
In normal mode (TRANS=0), the CUV bits are captured (either from the pins, in synchronous mode, or the control
registers, in the asynchronous mode) in the sub frame following the audio data. The V bit is set to zero to indicate the
audio data is suitable for conversion. The V12 pin indicates validity for Channels 1 & 2 and V34 pin indicates validity
for Channels 3 & 4 respectively. See Figure 4 and Figure 5.
Audio routing mode (transparent mode)
In audio routing mode (transparent mode) (ANS=TRANS=1), the CUV bits are captured with the same sub-frame as the
data to which the CUV bits correspond. In all DIF modes except 5 and 7, the CUV bits are captured at the first, rising
edge of BICK after an LRCK transition. In modes 5 and 7 (I2S), the CUV bits are captured at the second rising edge.
See Figure 6 and Figure 7.
LRCK
Frame A
Frame B
BICK
CUV
LRCK
Previous
CUV
Figure 4. Normal, DIF modes 0, 1, 2, 3, 4, and 6
Frame A
Frame A
CUV
Frame B
BICK
CUV
Previous
CUV
Figure 5. Normal, DIF modes 5 and 7 (I2S)
Frame A
CUV
LRCK
BICK
CUV
LRCK
BICK
CUV
Frame A
Frame B
Frame A
CUV
Figure 6. Audio routing, DIF modes 0, 1, 2, 3, 4, and 6
Frame A
Frame B
CUV
Frame B
Frame A
CUV
Figure 7. Audio routing, DIF modes 5 and 7 (I2S)
Frame B
CUV
MS0076-E-01
- 14 -
2001/12
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