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CDB4385 датащи(PDF) 39 Page - Cirrus Logic |
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CDB4385 датащи(HTML) 39 Page - Cirrus Logic |
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39 / 55 page ![]() DS671F2 39 CS4385 6.3.2 Functional Mode (FM) Default = 11 00 - Single-Speed Mode (4 to 50 kHz sample rates) 01 - Double-Speed Mode (50 to 100 kHz sample rates) 10 - Quad-Speed Mode (100 to 200 kHz sample rates) 11 - Auto Speed Mode detect (32 kHz to 200 kHz sample rates) Function: Selects the required range of input sample rates or Auto Speed Mode. 6.4 DSD Control (address 04h) 6.4.1 DSD Mode Digital Interface Format (DSD_DIF) Default = 000 - Format 0 (64x oversampled DSD data with a 4x MCLK to DSD data rate) Function: The relationship between the oversampling ratio of the DSD audio data and the required Master clock-to- DSD-data rate is defined by the Digital Interface Format pins. The DSD/PCM bit determines whether PCM or DSD Mode is selected. DIF3 DIF2 DIF1 DIF0 DESCRIPTION FORMAT 0 0 0 0 Left-Justified, up to 24-bit data 0 0 0 0 1 I²S, up to 24-bit data 1 0 0 1 0 Right-Justified, 16-bit data 2 0 0 1 1 Right-Justified, 24-bit data 3 0 1 0 0 Right-Justified, 20-bit data 4 0 1 0 1 Right-Justified, 18-bit data 5 10 0 0 One-Line Mode 1, 24-bit Data +SDIN4 8 10 0 1 One-Line Mode 2, 20-bit Data +SDIN4 9 10 1 0 One-Line Mode 3, 24-bit 6-channel 10 10 1 1 One-Line Mode 4, 20-bit 6-channel 11 11 0 0 TDM 12 X X X X All other combinations are Reserved Table 7. Digital Interface Formats - PCM Mode 76 5 4 3 2 1 0 DSD_DIF2 DSD_DIF1 DSD_DIF0 DIR_DSD STATIC_DSD INVALID_DSD DSD_PM_MD DSD_PM_EN 000 0 1 1 0 0 DIF2 DIF1 DIFO DESCRIPTION 0 0 0 64x oversampled DSD data with a 4x MCLK to DSD data rate 0 0 1 64x oversampled DSD data with a 6x MCLK to DSD data rate 0 1 0 64x oversampled DSD data with a 8x MCLK to DSD data rate 0 1 1 64x oversampled DSD data with a 12x MCLK to DSD data rate 1 0 0 128x oversampled DSD data with a 2x MCLK to DSD data rate 1 0 1 128x oversampled DSD data with a 3x MCLK to DSD data rate 1 1 0 128x oversampled DSD data with a 4x MCLK to DSD data rate 1 1 1 128x oversampled DSD data with a 6x MCLK to DSD data rate Table 8. Digital Interface Formats - DSD Mode |
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