AK4452VN Datasheet, PDF (1/91 Pages) Asahi Kasei Microsystems – 115dB 768kHz 32-bit 2ch Premium DAC

[AK4452]
= Preliminary =
AK4452
115dB 768kHz 32-bit 2ch Premium DAC
1. General Description
The AK4452 is a 32-bit 2ch Premium DAC, which achieves industry’s best low distortion characteristics by a
newly developed low distortion technology. It corresponds to a 768kHz PCM input and an 11.2MHz DSD
input at maximum, suitable for play backing high resolution audio sources that are becoming widespread in
network audios, USB-DACs and Car Audio Systems. In addition, “OSR-Doubler” technology is newly
adopted, making the AK4452 capable of supporting wide range signals and achieving low out-of-band noise
while realizing low power consumption. Moreover, the AK4452 has five types of 32-bit digital filters,
realizing simple and flexible sound making in wide range of applications.
Application: AV Receivers, CD/SACD Players, Network Audios, USB DACs, USB Headphones, Sound
Plate/Bars, Car Audios, Automotive External Amplifiers, Measuring Instruments and Control
Systems.
2. Features
(1) 256x Over sampling
(2) Sampling Rate: 8kHz  768kHz
(3) 32Bit 8x Digital Filter
- Ripple: 0.0032dB, Attenuation: 80dB
- High Quality Sound Short Delay Option; GD=6.25/fs and GD=5.3/fs
- Sharp Roll-Off Filter
- Slow Roll-Off Filter
- Super Slow Roll Off
(4) High Tolerance to Clock Jitter
(5) Low Distortion Differential Output
(6) DSD data input
(7) Daisy Chain
(8) Digital De-emphasis for 32, 44.1, 48kHz sampling
(9) Soft Mute
(10) Digital Attenuator (255 levels and 0.5dB step)
(11) Stereo Mode
(12) THD+N: -107dB
(13) DR, S/N: 115dB
(14) I/F Format:
- 24/32bit MSB justified
- 16/20/24/32bit
- LSB justified
- I²S
- DSD
- TDM
(15) 3-wire Serial and I²C μP I/F
(16) Master Clock:
- 30kHz ~ 32kHz: 1152fs
- 30kHz ~ 54kHz: 512fs or 768fs
- 30kHz ~ 108kHz: 256fs or 384fs
- 108kHz ~ 216kHz: 128fs or 192fs
~ 384kHz:64fs or 128fs
~ 768kHz:64fs
Rev. 0.1
2014/04
-1-