2ch DAC. AK4492 Datasheet

AK4492 DAC. Datasheet pdf. Equivalent

AK4492 Datasheet
Recommendation AK4492 Datasheet
Part AK4492
Description Quality Oriented 32-Bit 2ch DAC
Feature AK4492; [AK4492] AK4492 Quality Oriented 32-Bit 2ch DAC 1. General Description The AK4492 is a new generatio.
Manufacture AKM
Datasheet
Download AK4492 Datasheet




AKM AK4492
[AK4492]
AK4492
Quality Oriented 32-Bit 2ch DAC
1. General Description
The AK4492 is a new generation Premium 32-bit 2ch DAC with VELVET SOUNDTM technology,
achieving industry’s leading level low distortion characteristics. The OSR-Doubler technology establishes
low power consumption and low distortion characteristics. Moreover, the AK4492 has six types of 32-bit
digital filters, realizing simple and flexible sound tuning in wide range of applications. The AK4492
accepts up to 768kHz PCM data and 11.2MHz DSD data, ideal for a high-resolution audio source
playback that are becoming widespread in smartphone, portable audio player etc.
Application: Smart Cellular Phones, IC-Recorders, Bluetooth Headphones, CD/SACD Players, Network
Audios, USB DACs, USB Headphones, Sound Plates/Bars, HD Audio/Voice Conference
Systems, AV Receivers
2. Features
THD+N: -115 dB
DR, S/N: 127 dB (2 Vrms Output)
128 Times Over Sampling
Sampling Rate: 8kHz 768 kHz
32-bit 8x Digital Filter
- Short Delay Sharp Roll-off, GD=6.0/fs,
Ripple: 0.005dB, Attenuation: 100dB
- Short Delay Slow Roll-off, GD=5.0/fs
- Sharp Roll-off
- Slow Roll-off
- Low-dispersion Short Delay Filter
- Super Slow Roll-off
High Tolerance to Clock Jitter
Low Distortion Differential Output
2.8 MHz, 5.6 MHz, 11.2 MHz DSD Input Support
- Filter1 (fc = 39 kHz, 2.8 MHz mode)
- Filter2 (fc = 76 kHz, 2.8 MHz mode)
Digital De-emphasis for 32, 44.1and 48kHz sampling
Soft Mute
Digital Attenuator (255 levels and 0.5dB step + mute)
Mono Mode
External Digital Filter Interface
Audio I/F Format: 24/32 bit MSB justified, 16/20/24/32 bit LSB justified, I2S, DSD, TDM
Master Clock
8 kHz ~ 32 kHz: 256 fs or 384 fs or 512 fs or 768 fs or 1024 fs or 1152 fs
8 kHz ~ 54 kHz: 256 fs or 384 fs or 512 fs or 768 fs
8 kHz ~ 108 kHz: 256 fs or 384 fs
108 kHz ~ 216 kHz: 128 fs or 192 fs
~384 kHz: 32 fs or 48 fs or 64 fs or 96 fs
~768 kHz: 16 fs or 32 fs or 48 fs or 64 fs
3-wire, I2C-bus Interface
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AKM AK4492
[AK4492]
Power Supply:
(by Internal LDO)TVDD=AVDD= 3.0 3.6V, VDDL/R= 4.75 ~ 5.25V
(by external supply)TVDD=AVDD= (DVDD) 3.6V, DVDD=1.7 1.98V,
VDDL/R= 4.75 5.25V
Operational Temperature Rnage: 40 85 °C
Digital Input Level: CMOS
Package: 96-pin WLCSP
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AKM AK4492
[AK4492]
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 ................................................................................................................... 10
6. Absolute Maximum Ratings .......................................................................................................... 11
7. Recommended Operating Conditions .......................................................................................... 11
8. Electrical Characteristics .............................................................................................................. 12
Analog Characteristics ..................................................................................................................... 12
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................................................................................................................................ 31
9. 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
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
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