AK4497
AK4497 is Quality Oriented 32-Bit 2ch DAC manufactured by Asahi Kasei Microdevices.
Description
The AK4497 is a new generation Premium 32-bit 2ch DAC with VELVET SOUNDTM technology, achieving industry’s leading level low distortion characteristics and wide dynamic range. The AK4497 integrates a newly developed switched capacitor filter “OSR Doubler”, making it capable of supporting wide range signals and achieving low out-of-band noise while realizing low power consumption. Moreover, the AK4497 has six types of 32-bit digital filters, realizing simple and flexible sound tuning in wide range of applications. The AK4497 accepts up to 768k Hz PCM data and 22.4MHz DSD data, ideal for a high-resolution audio source playback that are being widespread in network audios, USB-DACs and Car Audio Systems.
Application: AV Receivers, CD/SACD player, Network Audios, USB DACs, USB Headphones, Sound Plates/Bars, Measurement Equipment, Control Systems, Public Audios (PA), IC-Recorders, Bluetooth Headphones, HD Audio/Voice Conference Systems
2. Features
- THD+N: -115d B
- DR, S/N: 127d B (Mono Mode, 130d B)
- 256 Times Over Sampling
- Sampling Rate: 8k Hz 768k Hz
- 32-bit 8x Digital Filter
- Short Delay Sharp Roll-off, GD=6.0/fs, Ripple: 0.005d B, Attenuation: 100d B
- Short Delay Slow Roll-off, GD=5.0/fs
- Sharp Roll-off
- Slow Roll-off
- Low-dispersion Short Delay Filter
- Super Slow Roll-off
- 2.8MHz, 5.6MHz, 11.2MHz, 22.4MHz DSD Input Support
- Filter1 (fc=39k Hz, 2.8MHz mode), Filter2 (fc=76k Hz, 2.8MHz mode)
- Digital De-emphasis for 32, 44.1, 48k Hz sampling
- Soft Mute
- Digital Attenuator (255 levels and 0.5d B step)
- Mono Mode
- External Digital Filter Interface
- Audio I/F Format: 24/32 bit MSB justified, 16/20/24/32 bit LSB justified, I2S, DSD
- Master Clock
8k Hz ~ 32k Hz: 1152fs 8k Hz ~ 54k Hz: 512fs or 768fs 8k Hz ~ 108k Hz: 256fs or 384fs 108k Hz ~ 216k Hz: 128fs or 192fs
~ 384k Hz: 64fs or 128fs ~ 768k Hz: 64fs
- Power Supply: TVDD=AVDD= 3.3 3.6V (by Internal LDO), TVDD=AVDD= 1.7 3.6V, DVDD=1.7 1.98V (by external supply), VDDL/R= 4.75 5.25V
- Digital Input...
