2

DS670PP1

CS4365

TABLE OF CONTENTS

1. PIN DESCRIPTION..................................................................................................................... 6

2. CHARACTERISTICS AND SPECIFICATIONS.......................................................................... 8

3. APPLICATIONS ....................................................................................................................... 20

3.1 Master Clock..................................................................................................................... 20

3.2 Mode Select...................................................................................................................... 21

3.3 Digital Interface Formats .................................................................................................. 22

3.3.1 OLM #1 ................................................................................................................ 23

3.3.2 OLM #2 ................................................................................................................ 24

3.3.3 TDM ..................................................................................................................... 24

3.4 Oversampling Modes........................................................................................................ 24

3.5 Interpolation Filter ............................................................................................................. 25

3.6 De-Emphasis .................................................................................................................... 25

3.7 ATAPI Specification .......................................................................................................... 26

3.8 Direct Stream Digital (DSD) Mode.................................................................................... 26

3.9 Grounding and Power Supply Arrangements ................................................................... 27

3.9.1 Capacitor Placement............................................................................................ 27

3.10 Analog Output and Filtering ............................................................................................ 27

3.11 The MUTEC Outputs ...................................................................................................... 29

3.12 Recommended Power-Up Sequence ............................................................................. 29

3.12.1 Hardware Mode ................................................................................................. 29

3.12.2 Software Mode................................................................................................... 29

3.13 Recommended Procedure for Switching Operational Modes......................................... 30

3.14 Control Port Interface .....................................................................................................31

3.14.1 MAP Auto Increment.......................................................................................... 31

3.14.2.1 I2C Write ............................................................................................ 31

3.14.2.2 I2C Read ............................................................................................ 32

3.14.3 SPI™ Mode........................................................................................................ 33

3.14.3.1 SPI Write............................................................................................ 33

3.15 Memory Address Pointer (MAP)

............................................................................... 33

4. REGISTER QUICK REFERENCE ........................................................................................... 34

5. REGISTER DESCRIPTION ...................................................................................................... 35

5.1 Chip Revision (address 01h) ........................................................................................... 35

5.1.1 Part Number ID (part) [Read Only] ...................................................................... 35

5.2 Mode Control 1 (address 02h) .......................................................................................... 35

5.2.1 Control Port Enable (CPEN) ................................................................................ 35

5.2.2 Freeze Controls (Freeze)..................................................................................... 35

5.2.3 PCM/DSD Selection (DSD/PCM)......................................................................... 36

5.2.4 DAC Pair Disable (DACx_DIS) ............................................................................ 36

5.2.5 Power Down (PDN).............................................................................................. 36

5.3 PCM Control (address 03h) ............................................................................................. 36

5.3.1 Digital Interface Format (dif) ................................................................................ 36

5.3.2 Functional Mode (FM).......................................................................................... 37

5.4 DSD Control (address 04h) ............................................................................................. 37

5.4.1 DSD Mode Digital Interface Format (DSD_dif) .................................................... 37

5.4.2 Direct DSD Conversion (DIR_DSD)..................................................................... 38

5.4.3 Static DSD Detect (static_DSD)........................................................................... 38

5.4.4 Invalid DSD Detect (invalid_DSD) ....................................................................... 38

5.4.5 DSD Phase Modulation Mode Select (DSD_PM_mode) ..................................... 38

5.4.6 DSD Phase Modulation Mode Enable (DSD_pm_EN) ........................................ 38

5.5 Filter Control (address 05h) ............................................................................................. 39

5.5.1 Interpolation Filter Select (FILT_SEL).................................................................. 39