[AK4492]
3. Table of Contents
1.
2.
3.
4.
5.
General Description ........................................................................................................................ 1
Features.......................................................................................................................................... 1
Table of Contents............................................................................................................................ 3
Block Diagram................................................................................................................................. 5
Pin Configurations and Functions................................................................................................... 6
■ Pin Configurations.............................................................................................................................. 6
■ Pin Functions ..................................................................................................................................... 7
■ Handling of Unused Pin ................................................................................................................... 10
Absolute Maximum Ratings.......................................................................................................... 11
Recommended Operating Conditions .......................................................................................... 11
Electrical Characteristics .............................................................................................................. 12
■ Analog Characteristics..................................................................................................................... 12
■ Sharp Roll-Off Filter Characteristics ................................................................................................ 15
6.
7.
8.
■ 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................................................................................................................................ 31
Functional Descriptions................................................................................................................. 36
■ D/A Conversion Mode (PCM Mode, DSD Mode, EXDP Mode) ...................................................... 38
■ D/A Conversion Mode Switching Timing ......................................................................................... 38
■ System Clock ................................................................................................................................... 40
■ Audio Interface Format .................................................................................................................... 49
■ Digital Filter ...................................................................................................................................... 61
■ De-emphasis Filter (PCM Mode) ..................................................................................................... 62
■ Output Volume (PCM Mode, DSD Mode, EXDF Mode).................................................................. 62
■ Gain Adjustment Function (PCM Mode, DSD Mode, EXDF Mode) ................................................ 63
■ Zero Detection (PCM Mode, DSD Mode, EXDF Mode) .................................................................. 64
■ L/R Channel Output Signal Select, Phase Inversion Function (PCM Mode, DSD Mode, EXDF Mode)
.............................................................................................................................................................. 65
■ DSD Signal Full Scale (FS) Detection ............................................................................................. 66
■ Soft Mute Operation (PCM Mode, DSD Mode, EXDF Mode) ......................................................... 68
■ LDO.................................................................................................................................................. 69
■ Shutdown Switch.............................................................................................................................. 69
■ Power Up/Down Function ................................................................................................................ 70
■ Power-OFF/Reset Function............................................................................................................. 74
■ Synchronize Function (PCM Mode, EXDF Mode)........................................................................... 77
■ Register Control Interface................................................................................................................ 79
■ Register Map.................................................................................................................................... 83
9.
10.
Recommended External Circuits.................................................................................................. 94
1. Grounding and Power Supply Decoupling ....................................................................................... 95
2. Voltage Reference............................................................................................................................ 95
3. Analog Output................................................................................................................................... 95
4. Connection with AK8157A................................................................................................................ 97
5. Connection with AK4205 .................................................................................................................. 98
11.
Package ........................................................................................................................................ 99
■ Outline Dimensions (96-pin WLCSP) .............................................................................................. 99
■ Material & Lead Finish ..................................................................................................................... 99
016011073-E-00
2016/12
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