AK4497 Datasheet, PDF (2/98 Pages) Asahi Kasei Microsystems – Quality Oriented 32-Bit 2ch DAC

[AK4497]
3. Table of Contents
1. General Description ........................................................................................................................ 1
2. Features .......................................................................................................................................... 1
3. Table of Contents............................................................................................................................ 2
4. Block Diagram................................................................................................................................. 4
5. Pin Configurations and Functions................................................................................................... 5
■ Pin Configurations.............................................................................................................................. 5
■ Pin Functions ..................................................................................................................................... 6
■ Handling of Unused Pin ..................................................................................................................... 8
6. Absolute Maximum Ratings ............................................................................................................ 9
7. Recommended Operating Conditions ............................................................................................ 9
8. Electrical Characteristics .............................................................................................................. 10
■ Analog Characteristics ..................................................................................................................... 10
■ DSD mode........................................................................................................................................ 11
■ Sharp Roll-Off Filter Characteristics (fs = 44.1kHz) ........................................................................ 12
■ Short Delay Sharp Roll-Off Filter Characteristics (fs = 44.1kHz) .................................................... 14
■ Slow Roll-Off Filter Characteristics (fs = 44.1kHz) .......................................................................... 16
■ Short Delay Slow Roll-Off Filter Characteristics (fs = 44.1kHz) ...................................................... 18
■ Low-dispersion Short Delay Filter Characteristics (fs = 44.1kHz) ................................................... 20
■ DSD Filter Characteristics................................................................................................................ 21
■ DC Characteristics ........................................................................................................................... 22
■ Switching Characteristics ................................................................................................................. 23
■ Timing Diagram ................................................................................................................................ 28
9. Functional Descriptions................................................................................................................. 33
■ D/A Conversion Mode ...................................................................................................................... 35
■ D/A Conversion Mode Switching Timing ......................................................................................... 35
■ System Clock ................................................................................................................................... 37
■ Power ON/OFF Sequence in FS Auto Detect Mode (LDOE pin = “H”)........................................... 42
■ Audio Interface Format .................................................................................................................... 45
■ Digital Filter ...................................................................................................................................... 57
■ De-emphasis Filter (PCM) ............................................................................................................... 58
■ Output Volume (PCM, DSD, EXDF) ................................................................................................ 58
■ Gain Adjustment Function (PCM, DSD, EXDF)............................................................................... 59
■ Zero Detection (PCM, DSD, EXDF)................................................................................................. 60
■ L/R Channel Output Signal Select, Phase Inversion Function (PCM, DSD, EXDF) ....................... 61
■ Sound Quality (PCM, DSD, EXDF).................................................................................................. 62
■ DSD Signal Full Scale (FS) Detection ............................................................................................. 63
■ Soft Mute Operation (PCM, DSD, EXDF) ........................................................................................ 64
■ LDO .................................................................................................................................................. 65
■ Shutdown Switch.............................................................................................................................. 65
■ Over Current Protection for Analog Output Pins ............................................................................. 65
■ Power Up/Down Function ................................................................................................................ 66
■ Synchronize Function (PCM, EXDF) ............................................................................................... 73
■ Register Control Interface ................................................................................................................ 75
■ Register Map .................................................................................................................................... 79
■ Register Definitions .......................................................................................................................... 81
10. Recommended External Circuits .................................................................................................. 91
11. Package ........................................................................................................................................ 95
■Outline Dimensions ........................................................................................................................... 95
■ Material & Lead Finish ..................................................................................................................... 96
■ Marking............................................................................................................................................. 96
12. Ordering Guide ............................................................................................................................. 97
Rev. 0.1
2015/11
-2-