[AK4493]
017012230-E-00 2017/12
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3. Table of Contents
1. General Description........................................................................................................................ 1
2. Features.......................................................................................................................................... 1
3. Table of Contents............................................................................................................................ 3
4. Block Diagram................................................................................................................................. 5
5. Pin Configurations and Functions................................................................................................... 6
■Pin Configurations.............................................................................................................................. 6
■Pin Functions ..................................................................................................................................... 7
■Handling of Unused Pin..................................................................................................................... 9
6. Absolute Maximum Ratings.......................................................................................................... 10
7. Recommended Operating Conditions .......................................................................................... 11
8. Electrical Characteristics .............................................................................................................. 12
■Analog Characteristics..................................................................................................................... 12
■DSD Mode........................................................................................................................................ 14
■Sharp Roll-Off Filter Characteristics................................................................................................ 15
■Slow Roll-Off Filter Characteristics.................................................................................................. 17
■Short Delay Sharp Roll-Off Filter Characteristics............................................................................ 19
■Short Delay Slow Roll-Off Filter Characteristics.............................................................................. 21
■Low Dispersion Short Delay Filter Characteristics.......................................................................... 23
■DSD Filter Characteristics................................................................................................................ 25
■DC Characteristics........................................................................................................................... 25
■Switching Characteristics................................................................................................................. 26
■Timing Diagram................................................................................................................................ 30
9. Functional Descriptions................................................................................................................. 35
■D/A Conversion Mode (PCM Mode, DSD Mode, EXDF Mode) ...................................................... 37
■D/A Conversion Mode Switching Timing ......................................................................................... 38
■System Clock................................................................................................................................... 39
■Audio Interface Format .................................................................................................................... 45
■Digital Filter...................................................................................................................................... 55
■De-emphasis Filter (PCM) ............................................................................................................... 55
■Output Volume (PCM, DSD and EXDF Modes; Register Control Mode only)................................ 56
■Gain Adjustment Function (PCM, DSD and EXDF Modes; Register Control Mode only).............. 57
■Zero Detection (PCM, DSD and EXDF Modes; Register Control Mode only) ................................ 57
■LR Channel Output Signal Select, Phase Inversion Function (PCM, DSD and EXDF Modes)...... 59
■Sound Quality Adjustment Function (PCM, DSD, EXDF; Register Control Mode only)................. 59
■DSD Signal Full-Scale (FS) Detection............................................................................................. 60
■Automatic Mode Switching Function (PCM/EXDF ⇔DSD Mode; Register Control Mode only).... 63
■Soft Mute Operation (PCM, DSD, EXDF)........................................................................................ 71
■LDO.................................................................................................................................................. 72
■Shutdown Switch.............................................................................................................................. 72
■Analog Output Overcurrent Protection............................................................................................. 72
■Power Up/Down Function................................................................................................................ 73
■Power-OFF/Reset Function............................................................................................................. 77
■Synchronize Function (PCM, EXDF)............................................................................................... 80
■Register Control Interface................................................................................................................ 82
■Register Map.................................................................................................................................... 86
■Register Definitions.......................................................................................................................... 88
10. Recommended External Circuits.................................................................................................. 96
11. Package...................................................................................................................................... 101
■Outline Dimensions (48-pin LQFP)................................................................................................101
■Material & Terminal Finish.............................................................................................................101
■Marking...........................................................................................................................................102
