Cirrus-logic CS4385A Manuel d'utilisateur Page 24

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24 DS837F2
CS4385A
4.3.1 OLM #1
OLM #1 serial audio interface format operates in Single-, Double-, or Quad-Speed Mode and will slave to
SCLK at 128 Fs. Six channels of MSB first 20-bit PCM data are input on SDIN1. The last two channels
are input on SDIN4.
4.3.2 OLM #2
OLM #2 serial audio interface format operates in Single-, Double-, or Quad-Speed Mode and will slave to
SCLK at 256 Fs. Six channels of MSB first 24-bit PCM data are input on SDIN1. The last two channels
are input on SDIN4.
4.3.3 OLM #3
OLM #3 serial audio interface format operates in Single-, Double-, or Quad-Speed Mode and will slave to
SCLK at 256 Fs. Eight channels of MSB first 20-bit PCM data are input on SDIN1.
LRCK
SCLK
LSBMSB
20 clks
64 clks 64 clks
LSBMSB LSBMSB LSBMSB LSBMSB LSBMSB MSB
DAC_A1
20 clks 20 clks 20 clks 20 clks 20 clks
Left Channel Right Channel
20 clks 20 clks
SDIN4
SDIN1
DAC_A2 DAC_A3
DAC_A4
DAC_B1
DAC_B4
DAC_B2 DAC_B3
Figure 14. Format 8 - One-Line Mode 1
LSBMSB
24 clks
128 clks
LSBMSB LSBMSB LSBMSB LSBMSB LSBMSB MSB
DAC_A1
24 clks 24 clks 24 clks 24 clks 24 clks
Left Channel Right Channel
24 clks 24 clks
128 clks
LRCK
SCLK
SDIN1
SDIN4
DAC_A4
DAC_A2 DAC_A3 DAC_B1 DAC_B2 DAC_B3
DAC_B4
Figure 15. Format 9 - One-Line Mode 2
LSBMSB
20 clks
128 clks
LSBMSB LSBMSB
LSBMSB LSBMSB LSBMSB MSB
DAC_A1
20 clks 20 clks
20 clks 20 clks 20 clks
Left Channel
Right Channel
128 clks
LRCK
SCLK
SDIN1
DAC_A2 DAC_A3
DAC_B1 DAC_B2 DAC_B3
LSBMSB
20 clks
DAC_A4
LSBMSB
20 clks
DAC_B4
Figure 16. Format 10 - One-Line Mode 3
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