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AK4490 Datasheet, PDF (2/68 Pages) Asahi Kasei Microsystems – Premium 32-Bit 2ch DAC | |||
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[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
â Ordering Guide ......................................................................................................................................... 5
â Pin Layout ................................................................................................................................................ 5
â Pin Functions ............................................................................................................................................ 6
â Handling of Unused Pin ........................................................................................................................... 8
6. Absolute Maximum Ratings .......................................................................................................................... 9
7. Recommended Operating Conditions............................................................................................................ 9
8. Electrical Characteristics ............................................................................................................................. 10
â Analog Characteristics............................................................................................................................ 10
â Sharp Roll-Off Filter Characteristics (fs=44.1kHz) ............................................................................... 11
â Sharp Roll-Off Filter Characteristics (fs=96kHz) .................................................................................. 11
â Sharp Roll-Off Filter Characteristics (fs=192kHz) ................................................................................ 11
â Short Delay Sharp Roll-Off Filter Characteristics (fs=44.1kHz) ........................................................... 13
â Short Delay Sharp Roll-Off Filter Characteristics (fs=96kHz) .............................................................. 13
â Short Delay Sharp Roll-Off Filter Characteristics (fs=192kHz) ............................................................ 13
â Slow Roll-Off Filter Characteristics (fs=44.1kHz) ................................................................................ 15
â Slow Roll-Off Filter Characteristics (fs=96kHz) ................................................................................... 15
â Slow Roll-Off Filter Characteristics (fs=192kHz) ................................................................................. 15
â Short Delay Slow Roll-Off Filter Characteristics (fs=44.1kHz) ............................................................ 17
â Short Delay Slow Roll-Off Filter Characteristics (fs=96kHz) ............................................................... 17
â Short Delay Slow Roll-Off Filter Characteristics (fs=192kHz) ............................................................. 17
â DSD Mode Characteristics ..................................................................................................................... 19
â DC Characteristics.................................................................................................................................. 19
â Switching Characteristics ....................................................................................................................... 20
â Timing Diagram ..................................................................................................................................... 22
9. Functional Descriptions ............................................................................................................................... 27
â D/A Conversion Mode ........................................................................................................................... 27
â System Clock.......................................................................................................................................... 27
â Audio Interface Format .......................................................................................................................... 34
â D/A Conversion Mode Switching Timing.............................................................................................. 39
â De-emphasis Filter.................................................................................................................................. 40
â Output Volume (PCM, DSD) ................................................................................................................. 40
â Zero Detection (PCM, DSD) .................................................................................................................. 41
â Mono Output (PCM, DSD, EX DF I/F) ................................................................................................. 41
â Sound Quality Control (PCM, DSD, Ex DF I/F).................................................................................... 41
â Soft Mute Operation (PCM, DSD) ......................................................................................................... 43
â System Reset .......................................................................................................................................... 43
â Power ON/OFF timing ........................................................................................................................... 44
â Reset Function ........................................................................................................................................ 45
â Synchronize Function ............................................................................................................................. 47
â Register Control Interface ...................................................................................................................... 49
â Register Map .......................................................................................................................................... 54
â Register Definitions................................................................................................................................ 54
MS1648-E-03
-2-
2014/11
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