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.

AK4376

  • AdvancedAudioDevices
  • VELVETSOUND
  • Audio2Go

AK4376

NEWAK4376
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 AK4375A that is adopted by many portable audio products since it was launched in 2014. The AK4376 achieves -106dB THD+N and 125dB SNR, the best performance in the field as a compact DAC with headphone amplifier for portable audio products. Reproducible performance of original acoustic sounds is also improved, showing -100dB or better performances in all audible bands. The digital input format corresponds to high resolution sound sources and supports PCM input up to 384 kHz. The AK4376 is housed in an ultra-small 36-pin CSP package (2.74mm x 2.56mm), enabling premium performance in a very small footprint. It is ideal for audio devices with Hi-Fi function such as smartphones, tablets, portable music players and headphones.
●Maximum Sampling Frequency/Resolution:  PCM 384 kHz/32-bit
●S/N (SNR):  125 dB
●Distortion (THD+N):  -106 dB
●Sound Color Digital Filter:  4 types

  • 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


   
AK4961ECB4/432102/110-991924 types1.7 to 1.910/1010122.8822528116CSP-40 to 85
AK4962ECB
4/432102/125-1063844 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


   
AK7738VQ5/432102/108-911924 types3401) 3.0 to 3.6
2) 1.7 to 3.6
12/128122.88 x 33072064LQFP-40 to 85YesAudioHUB
 
 
  • 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




   
AK4375AECB232110-99192No4 types9.51.7 to 1.9SingleYes36CSP-40 to 85SRC
AK4376ECB
232125-106384No4 types36.6/13.71.7 to 1.9
SingleYes36CSP-40 to 85
AK4432VT232108-91192No4 types25.73.0 to 3.6
Single16TSSOP-40 to 105Yes
AK4436VN632108-91768No5 types793.0 to 3.6Single32QFN-40 to 105Yes
AK4438VN832108-91768No5 types1023.0 to 3.6Single32QFN-40 to 105Yes
 
 
  • 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



   
AK5534VN
432111(117*)-10376811.24 types96

3.0 to 3.6

Diff48QFN-40 to 105Yes
AK5536VN
632111(118*)-10376811.24 types142

3.0 to 3.6

Diff64QFN-40 to 105Yes
AK5538VN
832111(120*)-10376811.24 types182

3.0 to 3.6

Diff64QFN-40 to 105Yes
 
 
  • 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
AK4601VQ
5/624(ADC)/32(DAC)106/108-95/-911924 types160mW(1) 3.0 to 3.6 (2) 1.7 to 3.6-Yes48LQFP-40 to 85Digital Mixer
[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.

AK4376

  • AdvancedAudioDevices
  • VELVETSOUND
  • Audio2Go

AK4376

NEW AK4376
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 AK4375A that is adopted by many portable audio products since it was launched in 2014. The AK4376 achieves -106dB THD+N and 125dB SNR, the best performance in the field as a compact DAC with headphone amplifier for portable audio products. Reproducible performance of original acoustic sounds is also improved, showing -100dB or better performances in all audible bands. The digital input format corresponds to high resolution sound sources and supports PCM input up to 384 kHz. The AK4376 is housed in an ultra-small 36-pin CSP package (2.74mm x 2.56mm), enabling premium performance in a very small footprint. It is ideal for audio devices with Hi-Fi function such as smartphones, tablets, portable music players and headphones.
●Maximum Sampling Frequency/Resolution:  PCM 384 kHz/32-bit
●S/N (SNR):  125 dB
●Distortion (THD+N):  -106 dB
●Sound Color Digital Filter:  4 types

AK4375A

  • AdvancedAudioDevices
  • VELVETSOUND
  • Audio2Go

AK4375A

AK4375A
Advanced Audio Headphone DAC for Smartphones

The advanced audio devices have been specifically optimized for portable applications based on AKM’s VELVET SOUND architecture which is established by premium audio devices, realizing high quality sounds for music playback. As an audio device for mobile applications, the AK4375A achieves industry leading level performance of THD+N (-99dB) and 110dB dynamic range with newly developed 32-bit advanced audio DAC and cap-less class G headphone amplifier.
In addition, the AK4375A integrates asynchronous SRCs and crystal oscillator for jitter isolation to prevent degradations of analog characteristics and sound qualities by external clock jitter. It is suitable for audio devices with Hi-Fi function such as smartphones, tablets, portable music players and wireless headphones. The AK4375A is housed in an ultra-small space saving 36-pin CSP package.

AK4961

  • AdvancedAudioDevices
  • VELVETSOUND
  • Audio2Go

AK4961ECB

AK4961
Advanced Audio DSP CODEC for Smartphones

The AK4961 combines the latest technologies of AKM including high sound fidelity for high resolution audio, advanced recording features during video recording and industry proven hands free processing capability. It is suitable for smartphones, tablet computers and portable music players with Hi-Fi audio functions.

● Hi-Fi Audio Playback
AKM's VELVET SOUND architecture established by premium audio devices has been specifically redesigned for portable applications, realizing extremely high quality audio playback for audiophile music playback. As an audio device for mobile applications, the AK4961 achieves industry leading level performance of -99dB THD+N and 110dB Dynamic range with the newly developed 32-bit advanced audio DAC and low distortion & low power consumption headphone amplifier.
● Hi-Fi Audio Recording
The AK4961 enables a natural sound recording by utilizing AKM's advanced ADC technology, typically found in today's recording studios. It also integrates low-noise and low-power microphone amplifier for recording. High quality and realistic recoding performance is realized with AKM's DSP-driven original sound processing.
● Voice Processing and Hands-free Functions
The AK4961 features AKM's DSP core that enables advanced voice processing such as dual mic noise suppression, Tx/Rx noise suppression, echo cancellation, and full duplex hands free functions.
● Comprehensive interfaces
The AK4961 has five audio I/F and SLIMbus I/F to communicate with an application processor, supporting up to two Baseband processors, a Bluetooth module and a digital input class-D amplifier simultaneously, and mixes multiple signal with built-in SRCs, making it capable to correspond to various kinds of systems.
AAD for Automotive
  • AdvancedAudioDevices
  • VELVETSOUND
AK5538VN

NEW 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

NEW 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

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