Advanced Audio

Advanced Audio

All for Absolute Sound

The VELVET SOUND taken over genealogy of the Premium Audio Technology is realized in various scenes.
The advanced audio devices enable natural sound recording technology used in today's recording studios enabling a PCM recorder, and state-of-the-art Hi-Fi sound playback technology used in professional level audio equipment.
AKM's advanced audio devices optimized for portable equipment such as smartphone and car infotainment equipment lead new era of the high-resolution digital audio.

Lineup

Lineup

  • AdvancedAudioDevices
  • VELVETSOUND

Advanced DSPs for Portable

Part# Data
Sheet
Ch#
AD/DA
Resolution S/N
AD/DA
THD+N
DAC
max
Fs
Sound
Color
Power
Consumption
Vdd Ch#
DSP In/Out
Ch#
SRC
Clock
Speed(max)
Data
RAM
Package Operation
Temp.
Automotive
Qualified
Others


Ch bit dB dB kHz
mW V

MHz word


   
AK4962ECB4/432102/125-1063844 types1.7 to 1.9
10/108122.8822528125CSP-40 to 85
 
 
  • AdvancedAudioDevices
  • VELVETSOUND

Advanced DSPs for Automotive

Part# Data
Sheet
Ch#
AD/DA
Resolution S/N
AD/DA
THD+N
DAC
max
Fs
Sound
Color
Power
Consumption
Vdd Ch#
DSP In/Out
Ch#
SRC
Clock
Speed(max)
Data
RAM
Package Operation
Temp.
Automotive
Qualified
Others


Ch bit dB dB kHz
mW V

MHz word


   
AK7735EQ4/432106/1081921) 3.0 to 3.6
2) 3.0 to 3.6
3) 3.0 to 3.6
4) 1.7 to 3.6
8/8147.4561638448LQFP
 
 
  • AdvancedAudioDevices
  • VELVETSOUND

Advanced DACs

Part# Data
Sheet
Ch# Resolution S/N THD
+N
max
Fs
DSD
Input
Sound
Color
Power
Consumption
Vdd Analog
Output
HDP
Amp
Package Operation
Temp.
Automotive
Qualified
Others



bit dB dB kHz MHz
mW V




   
AK4331ECB
232109-100192No4 types4.41.7 to 1.9SingleYes36CSP-40 to 85SRC
VELVETSOUND
AK4377AECB
232125-107384No4 types37.1/13.751.7 to 1.9
SingleYes36CSP-40 to 85VELVETSOUND
AK4377ECB
232128-10976811.24 types59.7/20.71.7 to 1.9
SingleYes36CSP-40 to 85VELVETSOUND
AK4432VT232108-91192No4 types25.73.0 to 3.6
Single16TSSOP-40 to 105YesVELVETSOUND
AK4436VN632108-91768No5 types793.0 to 3.6Single32QFN-40 to 105YesVELVETSOUND
AK4438VN832108-91768No5 types1023.0 to 3.6Single32QFN-40 to 105YesVELVETSOUND
 
 
  • AdvancedAudioDevices
  • VELVETSOUND

Advanced ADCs

Part# Data
Sheet
Ch# Resolution S/N THD
+N
max
Fs
DSD
Output
Sound
Color
Power
Consumption
Vdd Analog
Input
Package Operation
Temp.
Automotive
Qualified
Others



bit dB dB kHz MHz
mW V



   
AK5522VN232108-981925.0/3.3Diff24QFN-40 to 105YesVELVETSOUND
AK5534VN432111(117*)-10376811.24 types96

3.0 to 3.6

Diff48QFN-40 to 105YesVELVETSOUND
AK5536VN632111(118*)-10376811.24 types142

3.0 to 3.6

Diff64QFN-40 to 105YesVELVETSOUND
AK5538VN832111(120*)-10376811.24 types182

3.0 to 3.6

Diff64QFN-40 to 105YesVELVETSOUND
 
 
  • AdvancedAudioDevices

Advanced CODECs

Part# Data
Sheet
Ch#
AD/DA
Resolution S/N
AD/DA
THD+N
AD/DA
max
Fs
Sound
Color
Power
Consumption
Vdd Ch#
SRC
Audio
HUB
DIT SLIM
Bus
Package Operation
Temp.
Automotive
Qualified
Others


Ch bit dB dB kHz
mW V






   
AK4558EN2/232108/108-92/-1002164 types50mW2.4 to 3.628QFN-40 to +105PLL
VELVETSOUND
AK4601VQ5/624(ADC)/32(DAC)106/108-95/-911924 types160mW(1) 3.0 to 3.6 (2) 1.7 to 3.6-Yes48LQFP-40 to 85YesDigital Mixer
VELVETSOUND
[Notes]
*THD+N: Total Harmonic Distortion plus Noise
*max Fs: Maximum Sampling Frequency
*DSD: Direct Stream Digital
*Sound Color: AKM original digital filter

 

*Schedules of Samples and Production are subject to be changed without notice.

*The information in the datasheet is subject to be changed without notice.

Portable

Portable

AK4331

  • AdvancedAudioDevices
  • VELVETSOUND

AK4331

AK4331
Ultra-low power HiFi D/A converter for Bluetooth headphones

The AK4331 is an advanced 32-bit high sound quality stereo audio DAC with a built-in ground-referenced headphone amplifier. The AK4331 has four types of 32-bit digital filters for better sound quality, achieving low distortion characteristics and wide dynamic range. The AK4331 also has a jitter cleaner with a built-in SRC and a Crystal. The AK4331 is available in a 36-pin CSP package, utilizing less board space than competitive offerings.
● Maximum Sampling Frequency/Resolution :  192kHz/32-bit
● S/N (SNR) :  109dB
● Distortion (THD+N) :  -100dB
● Sound Color Digital Filter :  4 types

AK4377A

  • AdvancedAudioDevices
  • VELVETSOUND

AK4377A

AK4377A
HiFi Audio Headphone DAC for Smartphones

The AK4377A is stereo advanced 32-bit high sound quality audio DAC with a built-in ground-referenced headphone amplifier. An internal circuit integrates 32-bit digital filters for better sound quality, achieving low distortion characteristics and wide dynamic range. The sampling frequency supports up to 384 kHz. The AK4377A is available in a 36-pin CSP package, utilizing less board space than competitive offerings. The AK4377A is ideal for audio devices such as smartphones and tablets.
● Maximum Sampling Frequency/Resolution :  384kHz/32-bit
● S/N (SNR) :  125dB
● Distortion (THD+N) :  -107dB
● Sound Color Digital Filter :  4 types

AK4377

  • AdvancedAudioDevices
  • VELVETSOUND

AK4377

AK4377
Advanced Audio Headphone DAC for Smartphones

This 32-bit advanced D/A converter (DAC) with a headphone amplifier is a higher performing solution of the AK4376A that is adopted by many portable audio products since it was launched in 2017.  The AK4377 achieves -109dB THD+N and 128dB SNR, which is top performing for a compact DAC with headphone amplifier in portable audio.  It exhibits flat THD+N characteristics of -105dB or less in all audible bands, enhancing the ability to reproduce the original sound.  The AK4377 accepts up to 768kHz PCM data and DSD256 input.  It can fully decode the large amount of information from the source, reproducing the original sound in the highest resolution.  The AK4377 is ideal for audio devices such as smartphones, tablets, portable music players, USB headphones, Bluetooth headphones.
● Maximum Sampling Frequency/Resolution :  768 kHz/32-bit
● S/N (SNR) :  128 dB
● Distortion (THD+N) :  -109 dB
● Sound Color Digital Filter :  4 types

AK4962

  • AdvancedAudioDevices
  • VELVETSOUND

AK4962

AK4962
Advanced Audio DSP CODEC for Smartphones

The AK4962 is the new, higher performing solution of the AK4961 that has been adopted by many portable audio products mainly smartphones since it was launched in 2014. The AK4962 enhances high quality sound technologies of the AK4961 and has newly added digital active noise cancelling function.The AK4962 is a high performance with incredible sound quality audio CODEC for portable devices based on AKM’s VELVET SOUND architecture that has been widely adopted by well-established high-end audio companies. For sound processing, the AK4962 is capable of various functions for mobile applications reducing the load to the main processor while improving battery consumption. The AK4962 provides clear sound experiences even in a noisy environment with a headphone that have microphones for noise collecting. This function works as digital compensations, realizing more efficient noise cancelling when compared to traditional analog implementation.

Automotive

Automotive

AAD for Automotive
  • AdvancedAudioDevices
  • VELVETSOUND
AK5538VN

AK5534VN AK5536VN AK5538VN
111dB 768kHz/32-bit 4/6/8ch Advanced Audio ADC

The AK553x capture incredible detailed and the true sound expression with its high resolution 32-bit processing by AKMs proprietary VELVET SOUND architecture that has been widely adopted by well-established high-end audio companies. This high resolution processing and noise tolerance designs of the AK553x realize a low distortion recording. Digital output supports unsurpassed high resolution sound, up to 768 kHz sampling rate and 11.2 MHz DSD output is available.

  • AdvancedAudioDevices
  • VELVETSOUND
AK4438VN

AK4436VN AK4438VN
108dB 768kHz/32-bit 6/8ch Advanced Audio DAC

The AK4436/AK4438 realizes detailed sound expression with high resolution 32-bit processing by VELVET SOUND architecture that has been widely adopted by well-established high-end audio companies, and also achieves a low power consumption operation required  by car audio systems. They are optimized for multi-channel audio systems in the aspects of sound quality, power consumption and characteristics.

  • AdvancedAudioDevices
  • VELVETSOUND
  • Audio2Go
AK4432VT

AK4432VT
108dB 192kHz/32-bit 2ch Advanced Audio DAC

The AK4432VT is an advanced audio 32-bit DAC, with 2-channels AKM’s VELVET SOUND architecture that has been widely adopted by well-established high-end audio companies. The digital input supports up to 192 kHz PCM, allowing for high-resolution audio source playback. This advanced audio DAC is capable of TDM daisy chain connection enabling up to eight channels configuration when paired with other AKM devices. The AK4432 has a clock synchronization function effective when multiple are used in the system and is performance matched with AKM’s quickly becoming popular automotive audio & voice processor, the AK7738, to expand the number of audio DAC channels for the system.

  • AdvancedAudioDevices
  • VELVETSOUND


AK7738VQ

AK7738VQ
New Generation Audio/Voice Processor with Multi Core

The AK7738 is an audio/voice digital signal processor that realizes high performance hands-free voice process in addition to audio process. Surround sound processing and high performance noise and echo cancellations can be executed simultaneously by the Multi Core DSP (Digital Signal Processor). This device integrates two stereo ADC’s (A/D converter), one monaural ADC, two stereo DAC’s (D/A converter) and four asynchronous SRC’s (Sample Rate Converter). Advanced 32-bit DAC’s are adopted for analog outputs, realizing a high-quality playback of high-resolution sound sources. The AK7738 is suitable for car audio, display audio, car navigation systems and hands-free systems.

  • ● Digital Block | Multi Core DSP supporting 28-bit Floating Point Arithmetic
  • ● Variable Software is Available | Realizing High Quality Audio and High Performance Hands-free Talk
  • ● Analog Block | Central Control of Analog/Digital Input and Output by "AudioHUB"
  • ● High Quality Audio Playback | Integrate Advanced 32-bit DACs That Adopts VELVET SOUND Technology

Related Contents

Audio DACs

  • Stereo DACs
  • Multi-channel DACs
  • Low Power DACs

Page Top

top