AK4497EQ

Quality-oriented 128dB Premium 32-bit 2ch DAC

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Description

Premium DACs AK4497EQ
VELVET SOUNDVERITA The AK4497 is a new generation premium 32-bit DAC based on AKM’s VELVET SOUND architecture that has been widely adopted by well-established high-end audio companies. High signal to noise performance is achieved by improving VELVET SOUND technology by supporting a larger current drive capability. The performance of an audio DAC using switched capacitor is expanded to the limit with the AK4497. In addition, AKM has developed an original process that has greatly improved low noise performance and electric margin for audio devices, increasing data amount and enhancing original acoustic sound that can be found in the sound strength.

● Dynamic Sound Playback with Large Amount of Playback Information: VELVET SOUND architecture is improved
Not only circuit designing but also the LSI manufacturing process was newly developed at AKM exclusively for AKM’s audio devices.  The AK4497 is the first device to utilize this process in AKMs foundry. 32-bit processing is integrated for the IRD (Impulse Response Designed) Filter, reproducing a detailed and natural signal wave. A low-dispersion short delay filter was newly added to the other five filters found in our previous generation device. So, six different digital filter types are selectable according to the user audio and system preferences.

● AKM’s Best Performance D/A Converter
Low-distortion technology achieves industry’s best performance of -116dB THD+N DAC with 128dB S/N characteristic. The AK4497 has the best performance among AKM’s D/A converters. In addition, OSRD (Over Sampling Ratio Doubler) technology greatly reduces out of band noise.

● Supporting High Resolution Data
The first in the industry, a 22.4MHz DSD input is supported. The digital input supports up to 768 kHz PCM and 22.4 MHz DSD (Direct Stream Digital), recreating high-resolution sound that is as close as possible to the original acoustic source.

● Application
High-end Audio, Professional Audio, AV Receivers, CD/SACD Players, Network Audio, USB DAC’s

AK4497EQ

Premium DAC VERITA AK4497EQ

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Key Features

[Line-up]

● 3rd Generation 32-bit 2ch Premium D/A Converter
  Product Name  AK4497EQVERITA AK4497EQ
  Flagship
  Premium D/A Converter
 AK4490EQVERITA AK4490EQ
  High-end
  Premium D/A Converter
 AK4452VNAK4452VN
 
  Premium D/A Converter
  ● DR, S/N   128dB
  (Mono mode: 131dB)
  120dB
  (Mono mode: 123dB)
  115dB
  ● THD+N
  -116dB  -112dB   -107dB
  ● Sampling Rate  8kHz to 768kHz  30kHz to 768kHz  8kHz to 768kHz
  ● DSD Input
 Max: 22.4MHz  Max: 11.2MHz
  ● Sound Color  Six Types
 32-bit 8-fold Digital Filters
 - Short Delay Sharp Roll-off, GD=6.25/fs
 - Short Delay Slow Roll-off, GD=5.3/fs
 - Sharp Roll-off
 - Slow Roll-off
 - Super Slow Roll-off
 - Low-dispersion Short Delay
 Five Types
 32-bit 8-fold Digital Filters
 - Short Delay Sharp Roll-off, GD=6.25/fs
 - Short Delay Slow Roll-off, GD=5.3/fs
 - Sharp Roll-off
 - Slow Roll-off
 - Super Slow Roll-off

  ● Resolution  32-bit
  ● Number of Channel  2ch
  ● Input Method  Full Differential Input
  ● VELVET SOUND Technology  Low-distortion technology
 OSRD (Over Sampling Ratio Doubler) technology
  ● Power Consumption  346mW  145mW  50mW
  ● Power Supply  Analog: 4.75 to 5.25V
 Digital: 1.7 to 3.6V
 Analog: 4.75 to 5.25V
 Digital: 3.0 to 3.6V
 Analog: 3.0 to 5.5V
 Digital: 1.7 to 3.6V
  ● Operation Temperature  -40~85°C  -40~85°C  -40~105°C
  ● Package  64-pin TQFP (10mm x 10mm)  48-pin LQFP (7mm x 7mm)  32-pin QFN (5mm x 5mm)
  ● Sales Start  Available Now  Available Now
 Available Now
  ● Samples

    Distributors/ Representatives
 Global Web Distributor
Digi-Key
 Global Web Distributor
Digi-Key
 Global Web Distributor
Digi-Key

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