AK4490EQ Datasheet, PDF (2/68 Pages) Asahi Kasei Microsystems – Premium 32-Bit 2ch DAC

[AK4490]
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
■ Ordering Guide ......................................................................................................................................... 5
■ Pin Layout ................................................................................................................................................ 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
■ Sharp Roll-Off Filter Characteristics (fs=44.1kHz) ............................................................................... 11
■ Sharp Roll-Off Filter Characteristics (fs=96kHz) .................................................................................. 11
■ Sharp Roll-Off Filter Characteristics (fs=192kHz) ................................................................................ 11
■ Short Delay Sharp Roll-Off Filter Characteristics (fs=44.1kHz) ........................................................... 13
■ Short Delay Sharp Roll-Off Filter Characteristics (fs=96kHz) .............................................................. 13
■ Short Delay Sharp Roll-Off Filter Characteristics (fs=192kHz) ............................................................ 13
■ Slow Roll-Off Filter Characteristics (fs=44.1kHz) ................................................................................ 15
■ Slow Roll-Off Filter Characteristics (fs=96kHz) ................................................................................... 15
■ Slow Roll-Off Filter Characteristics (fs=192kHz) ................................................................................. 15
■ Short Delay Slow Roll-Off Filter Characteristics (fs=44.1kHz) ............................................................ 17
■ Short Delay Slow Roll-Off Filter Characteristics (fs=96kHz) ............................................................... 17
■ Short Delay Slow Roll-Off Filter Characteristics (fs=192kHz) ............................................................. 17
■ DSD Mode Characteristics ..................................................................................................................... 19
■ DC Characteristics.................................................................................................................................. 19
■ Switching Characteristics ....................................................................................................................... 20
■ Timing Diagram ..................................................................................................................................... 22
9. Functional Descriptions ............................................................................................................................... 27
■ D/A Conversion Mode ........................................................................................................................... 27
■ System Clock.......................................................................................................................................... 27
■ Audio Interface Format .......................................................................................................................... 34
■ D/A Conversion Mode Switching Timing.............................................................................................. 39
■ De-emphasis Filter.................................................................................................................................. 40
■ Output Volume (PCM, DSD) ................................................................................................................. 40
■ Zero Detection (PCM, DSD) .................................................................................................................. 41
■ Mono Output (PCM, DSD, EX DF I/F) ................................................................................................. 41
■ Sound Quality Control (PCM, DSD, Ex DF I/F).................................................................................... 41
■ Soft Mute Operation (PCM, DSD) ......................................................................................................... 43
■ System Reset .......................................................................................................................................... 43
■ Power ON/OFF timing ........................................................................................................................... 44
■ Reset Function ........................................................................................................................................ 45
■ Synchronize Function ............................................................................................................................. 47
■ Register Control Interface ...................................................................................................................... 49
■ Register Map .......................................................................................................................................... 54
■ Register Definitions................................................................................................................................ 54
MS1648-E-03
-2-
2014/11