[AK4493]
017012230-E-00
2017/12
- 1 -
1. General Description
The AK4493 is a new generation Premium 32-bit 2ch DAC with VELVET SOUND
TM
technology,
achieving industry’s leading level low distortion characteristics. The newly adopted OSR-Doubler
technology establishes wide signal band, low power consumption and low distortion characteristics.
Moreover, the AK4493 has six types of 32-bit digital filters, realizing simple and flexible sound tuning in a
wide range of applications. The AK4493 accepts up to 768kHz PCM data and 22.4MHz DSD data, ideal
for high-resolution audio source playback that is becoming widespread in network audio, USB-DAC, etc.
Application: AV Receivers, CD/SACD Players, Network Audios, USB DACs, USB Headphones, Sound
Plates/Bars, Measurement Equipment, Control Systems, IC-Recorder, Bluetooth
Headphone, HD Audio/Voice Conference Systems.
2. Features
THD+N: -113dB
DR, S/N: 123dB (2Vrms), 125dB (Large Amplitude Mode), 126dB (Mono Mode)
256 Times Over Sampling
Sampling Rate: 8kHz
768kHz
32-bit 8x Digital Filter
-
Short Delay Sharp Roll-off, GD = 6.0/fs,
-
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/ Low Noise High Performance Differential Amplifier Output
Large Amplitude Output Mode
DSD64, DSD128, DSD256, DSD512 Input Support
-
Filter1 (fc = 39kHz, DSD64 mode), Filter2 (fc = 76kHz, DSD64 mode)
Digital De-emphasis for 32, 44.1 and 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, I
2
S, DSD, TDM
Master Clock
8kHz ~ 32kHz: 256fs or 384fs or 512fs or 768fs or 1152fs
8kHz ~ 54kHz: 256fs or 384fs or 512fs or 768fs
8kHz ~ 108kHz: 256fs or 384fs
108kHz ~ 216kHz: 128fs or 192fs
~ 384kHz: 32fs or 48fs or 64fs or 96fs
~ 768kHz: 16fs or 32fs or 48fs or 64fs
3-wire, I
2
C-bus Register Control Interface, or Pin Control
Power Supply:
TVDD = AVDD = 3.0
3.6V (by internal LDO), VDDL/R = 4.75 ~ 5.25V
TVDD = AVDD = DVDD
3.6V (by external supply), DVDD = 1.7V
1.98V
VDDL/R = 4.75 ~ 5.25V
Operational Temperature: -40 ~ 85 °C
AK4493
Quality Oriented 32-Bit 2ch DAC
