Cirrus-logic CS4385A Manual de usuario Pagina 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
- Features 1
- Description 1
- TABLE OF CONTENTS 2
- LIST OF FIGURES 4
- LIST OF TABLES 5
- 1. PIN DESCRIPTION 6
- DS837F2 7 7
- 7
- Pin Name # Pin Description 7
- ABSOLUTE MAXIMUM RATINGS 8
- See Note 12 12
- (CONTINUED) 13
- DIGITAL CHARACTERISTICS 14
- 16 DS837F2 16
- =20pF 16
- Repeated 17
- DS837F2 19 19
- 20 DS837F2 20
- 4. APPLICATIONS 21
- 4.2 Mode Select 22
- DS837F2 23 23
- 4.3.1 OLM #1 24
- 4.3.2 OLM #2 24
- 4.3.3 OLM #3 24
- 4.3.4 OLM #4 25
- 4.3.5 TDM 25
- 4.4 Oversampling Modes 25
- 4.5 Interpolation Filter 26
- 4.6 De-Emphasis 26
- 4.7 ATAPI Specification 27
- 4.9.1 Capacitor Placement 28
- Figure 22. Full-Scale Output 29
- 4.11 The MUTEC Outputs 30
- 4.12.1 Hardware Mode 30
- 4.12.2 Software Mode 31
- 5. CONTROL PORT INTERFACE 32
- 5.3 SPI Mode 33
- 5.3.1 SPI Write 33
- 76543210 34
- 00000000 34
- 6. REGISTER QUICK REFERENCE 35
- 36 DS837F2 36
- Addr Function 7 6 5 4 3 2 1 0 36
- 7. REGISTER DESCRIPTION 37
- 7.2.5 Power Down (PDN) 38
- 7.3 PCM Control (Address 03h) 38
- 7.3.2 Functional Mode (FM) 39
- 7.4 DSD Control (Address 04h) 39
- 7.8.4 PCM Auto-Mute (PAMUTE) 43
- 7.8.5 DSD Auto-Mute (DAMUTE) 43
- 7.9.1 Mute (MUTE_xx) 44
- 8. FILTER PLOTS 48
- Amplitude (dB) 49
- 9. PARAMETER DEFINITIONS 52
- 10.PACKAGE DIMENSIONS 53
- 11.ORDERING INFORMATION 53
- 48L LQFP PACKAGE DRAWING 53
- 12.REFERENCES 54
- 13.REVISION HISTORY 55
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