Audio ADCs

AKM’s audio ADCs realizes high quality sound audio systems with original analog-digital mixed technology that delivers high integration and designing flexibility. They are suitable for wide range of audio products such as portable devices, high-end equipments and car entertainment systems.

The History of AKM's A/D Converters
The History of AKM's A/D Converters

The History of AKM's A/D Converters Since 1987

AKM released a first generation delta-sigma A/D converter, (ADC), in 1987, and a world class fifth-order delta-sigma A/D converter in 1992.  AKM's quality ADC had piqued attention in the audio industry. "2-2 cascade connection", technology that maximized the ADC performance was introduced in 1996. Since then, AKM has been providing ADCs with world class performance by developing advanced technologies such as low power consumption, multi-bit, and AKM's original bi-directional DWA (Data Weighted Average) technology.  In addition, AKM has been improving the conversion resolution from the first generation of 16-bit to 18, to 24, and now 32-bit, and expanding the sampling frequency from 48kHz up to 768kHz, as a worldwide cutting edge leader of audio capture technology.
A new generation architecture, the "VELVET SOUND", brand launched in 2014.  As the first product of VELVET SOUND, the flagship VERITA AK5397 with world leading performance of 127dB S/N was released. In 2016, four multi-channel products were added to each premium high-end ADC, the AK557X series and the premium ADC AK555X series.  In total, nine products are available in the 32-bit premium ADC lineup.
AKM products have been widely adopted by well-established companies from high-end to consumer uses around the world due to the advanced solutions AKM provides with many years’ experience.

Pickup

AK5701: Low power 2ch ADC with ALC, MIC-Amp and PLL

The AK5701 is a low voltage 16-bit A/D converter for portable audio systems. Input circuits include a Microphone-Amplifier and an ALC (Auto Level Control) circuit that is suitable for portable application with recording function. In addition, PLL is integrated, therefore it is easy to connect with DSP. The AK5701 is available in a 24pin QFN package, utilizing less board space than competitive offerings.

Stereo ADCs

Part# Data
Sheet
Automotive
Qualified
Ch# Analog I Bits Max fs THD+N S/N Vdd PLL MIC
Amp
Others





Bits kHz

V      
   
AK5355VNYes2Single1650-85912.1 to 3.6Yes
AK5355VTYes2Single1650-85912.1 to 3.6Yes
AK5357ET2Single2496-881022.7 to 5.5
AK5357VTYes2Single2496-881022.7 to 5.5
AK5359VTYes2Single24216-941025.0
AK5365VQ2Single2496-941035.0Pre-Amp, ALC
AK5367AEF2Single2496-901025.0 and 3.3Capless Input, Pre-Amp
AK5381VTYes2Single2496-961065.0
AK5386VTYes2Single24216-961105.0
AK5397EQ2Diff32768-108127(130*)5.0/3.3VELVETSOUND
AK5552VN
Yes2Diff32768-106115(118*)5.0VELVETSOUND
AK5572EN2Diff32768-112121(124*)5.0VELVETSOUND
AK5701KNYes2Single1648-78892.4 to 3.6YesYesALC
AK5701VN2Single1648-78892.4 to 3.6YesYesALC
AK5720VTYes2Single2496-941022.7 to 5.5YesCascade TDM I/F, Short Group Delay

Multi-channel ADCs

Part# Data
Sheet
Automotive
Qualified
Ch# Analog I Bits Max fs THD+N S/N Vdd PLL MIC
Amp
Others





Bits kHz

V      
   
AK5388AEQ4Diff24216-1101205.0/3.3Cascade TDM I/F, Short Group Delay
AK5534VN
Yes4Diff32768-103111(117*)

3.0 to 3.6

VELVETSOUND
AK5536VN
Yes6Diff32768-103111(118*)

3.0 to 3.6

VELVETSOUND
AK5538VN
Yes8Diff32768-103111(120*)

3.0 to 3.6

VELVETSOUND
AK5554VN
Yes4Diff32768-106115(121*)

5.0

VELVETSOUND
AK5556VN
Yes6Diff32768-106115(122*)5.0VELVETSOUND
AK5558VN
Yes8Diff32768-106115(124*)5.0VELVETSOUND
AK5574EN4Diff32768-112121(127*)5.0VELVETSOUND
AK5576EN6Diff32768-112121(128*)5.0VELVETSOUND
AK5578EN8Diff32768-112121(130*)5.0VELVETSOUND
AK5702VN4Single1648-83892.4 to 3.6YesYesALC, Cascade TDM I/F
AK5703EN4Single / Diff2448-85962.4 to 3.6YesYesALC, Cascade TDM I/F
AK5730VQYes4Diff2448-931003.0 to 3.6YesMic-diagnostics, Cascade TDM I/F

Microphone ADCs

Part# Data
Sheet
Automotive
Qualified
Ch# Analog I Bits Max fs THD+N S/N Vdd PLL MIC
Amp
Others
Bits kHz V
   
AK5355VNYes2Single1650-85912.1 to 3.6Yes
AK5355VTYes2Single1650-85912.1 to 3.6Yes
AK5701KNYes2Single1648-78892.4 to 3.6YesYesALC
AK5701VN2Single1648-78892.4 to 3.6YesYesALC
AK5702VN4Single1648-83892.4 to 3.6YesYesALC, Cascade TDM I/F
AK5703EN4Single / Diff2448-85962.4 to 3.6YesYesALC, Cascade TDM I/F
AK5720VTYes2Single2496-941022.7 to 5.5YesCascade TDM I/F, Short Group Delay
AK5730VQYes4Diff2448-931003.0 to 3.6YesMic-diagnostics, Cascade TDM I/F

Low Power ADCs

Part# Data
Sheet
Automotive
Qualified
Ch# Analog I Bits Max fs THD+N S/N Vdd PLL MIC
Amp
Others





Bits kHz

V      
   
AK5355VNYes2Single1650-85912.1 to 3.6Yes
AK5355VTYes2Single1650-85912.1 to 3.6Yes
AK5357ET2Single2496-881022.7 to 5.5
AK5357VTYes2Single2496-881022.7 to 5.5
AK5373EQ
2Diff2448-85913.0 to 3.6YesYes
AK5374EN2Diff2448-85913.0 to 3.6YesYes
AK5701KNYes2Single1648-78892.4 to 3.6YesYesALC
AK5701VN2Single1648-78892.4 to 3.6YesYesALC
AK5702VN4Single1648-83892.4 to 3.6YesYesALC, Cascade TDM I/F
AK5703EN4Single / Diff2448-85962.4 to 3.6YesYesALC, Cascade TDM I/F
AK5720VTYes2Single2496-941022.7 to 5.5YesCascade TDM I/F, Short Group Delay
AK5730VQYes4Diff2448-931003.0 to 3.6YesMic-diagnostics, Cascade TDM I/F

USB ADCs

Part# Data
Sheet
Automotive
Qualified
Ch# Analog I Bits Max fs THD+N S/N Vdd PLL MIC
Amp
Others





Bits kHz

V      
   
AK5373EQ
2Diff2448-85913.0 to 3.6YesYes
AK5374EN2Diff2448-85913.0 to 3.6YesYes

[Notes]
* RND: Recommend for New Design
* NRND: Not Recommend for New Design

AKM Automotive Products
AdvancedAudioDevices VELVET SOUND

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

AK5538VN

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.

Automotive ADCs

Part# Data
Sheet
Automotive
Qualified
Ch# Analog I Bits Max fs THD+N S/N Vdd PLL MIC
Amp
Others





Bits kHz

V      
   
AK5355VNYes2Single1650-85912.1 to 3.6Yes
AK5355VTYes2Single1650-85912.1 to 3.6Yes
AK5357VTYes2Single2496-881022.7 to 5.5
AK5359VTYes2Single24216-941025.0
AK5381VTYes2Single2496-961065.0
AK5386VTYes2Single24216-961105.0
AK5534VN
Yes4Diff32768-103111(117*)

3.0 to 3.6

VELVETSOUND
AK5536VN
Yes6Diff32768-103111(118*)

3.0 to 3.6

VELVETSOUND
AK5538VN
Yes8Diff32768-103111(120*)

3.0 to 3.6

VELVETSOUND
AK5552VN
Yes2Diff32768-106115(118*)5.0VELVETSOUND
AK5554VN
Yes4Diff32768-106115(121*)

5.0

VELVETSOUND
AK5556VN
Yes6Diff32768-106115(122*)5.0VELVETSOUND
AK5558VN
Yes8Diff32768-106115(124*)5.0VELVETSOUND
AK5701KNYes2Single1648-78892.4 to 3.6YesYesALC
AK5720VTYes2Single2496-941022.7 to 5.5YesCascade TDM I/F, Short Group Delay
AK5730VQYes4Diff2448-931003.0 to 3.6YesMic-diagnostics, Cascade TDM I/F

[Notes]
* RND: Recommend for New Design
* NRND: Not Recommend for New Design

Related Contents

Audio DACs

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

Audio CODECs

Mono CODECs

Stereo CODECs

Multi-channel CODECs

USB/PCM CODECs

 

Digital Audio Interfaces

AK410x/AK411x series

 

Sampling Rate Converters

AK412x/AK413x series

Line Drivers/Switches

AK42xx/AK47xx series

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